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aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="LinkExternalIcon-:Ralal6m6tasm:"><title id="LinkExternalIcon-:Ralal6m6tasm:">Help</title><path fill="currentColor" fill-rule="evenodd" d="M8.4 4.5a.5.5 0 01.5.5v.1a.5.5 0 01-.5.5H5.6v8.8h8.8v-2.8a.5.5 0 01.41-.492l.09-.008h.1a.5.5 0 01.492.41l.008.09V15a.5.5 0 01-.41.492L15 15.5H5a.5.5 0 01-.492-.41L4.5 15V5a.5.5 0 01.41-.492L5 4.5h3.4zm6.6 0a.5.5 0 01.5.5v.1l-.001.01.001 3.29a.5.5 0 01-.5.5h-.1a.5.5 0 01-.5-.5l-.001-1.935-3.967 3.967a.611.611 0 01-.78.07l-.084-.07a.611.611 0 01-.07-.78l.07-.084L13.534 5.6H11.6a.5.5 0 01-.5-.5V5a.5.5 0 01.5-.5H15z"></path></svg></span></div></a></li></ul></div></nav><style data-emotion="css inbhe0">.css-inbhe0{box-sizing:border-box;margin-left:1rem;margin-right:1rem;min-width:12rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-inbhe0"><button type="button" class="DocSearch DocSearch-Button" aria-label="Search" disabled=""><span class="DocSearch-Button-Container"><svg width="20" height="20" class="DocSearch-Search-Icon" viewBox="0 0 20 20" aria-hidden="true"><path d="M14.386 14.386l4.0877 4.0877-4.0877-4.0877c-2.9418 2.9419-7.7115 2.9419-10.6533 0-2.9419-2.9418-2.9419-7.7115 0-10.6533 2.9418-2.9419 7.7115-2.9419 10.6533 0 2.9419 2.9418 2.9419 7.7115 0 10.6533z" stroke="currentColor" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round"></path></svg><span class="DocSearch-Button-Placeholder">Search</span></span><span class="DocSearch-Button-Keys"></span></button></div><nav data-paste-element="IN_PAGE_NAVIGATION" data-paste-core-version="20.7.0" aria-label="Log in or sign up" class="css-dnwo4n"><div data-paste-element="IN_PAGE_NAVIGATION_SCROLL_WRAPPER" data-paste-core-version="20.7.0" class="css-1ywodxz"><ul data-paste-element="IN_PAGE_NAVIGATION_ITEMS" data-paste-core-version="20.7.0" class="css-v2gylz"><li data-paste-element="TOPBAR_NAV_ITEM" data-paste-core-version="20.7.0" class="css-m5glei"><a data-paste-element="TOPBAR_NAV_ITEM_ANCHOR" data-paste-core-version="20.7.0" rel="noreferrer noopener" target="_blank" href="https://www.twilio.com/login" class="css-1jrsz7z">Log in</a></li><li data-paste-element="TOPBAR_NAV_ITEM" data-paste-core-version="20.7.0" class="css-m5glei"><a data-paste-element="TOPBAR_NAV_ITEM_ANCHOR" data-paste-core-version="20.7.0" rel="noreferrer noopener" target="_blank" href="https://www.twilio.com/try-twilio" class="css-1jrsz7z">Sign up</a></li></ul></div></nav></div></div><style data-emotion="css m2wd1f">.css-m2wd1f{box-sizing:border-box;padding-top:5.75rem;padding-left:1.5rem;padding-right:1.5rem;background-color:rgb(255, 255, 255);position:relative;margin-left:auto;margin-right:auto;max-width:77rem;box-sizing:content-box;}@media screen and (min-width: 768px){.css-m2wd1f{padding-top:5.75rem;padding-left:1.5rem;padding-right:1.5rem;}}@media screen and (min-width: 1024px){.css-m2wd1f{padding-top:5.75rem;padding-left:3.25rem;padding-right:3.25rem;}}@media screen and (min-width: 1385px){.css-m2wd1f{padding-top:2.25rem;}}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" id="twilio-docs-content-area" class="css-m2wd1f"><style data-emotion="css 146sg2s">.css-146sg2s{box-sizing:border-box;display:block;-webkit-box-pack:center;-ms-flex-pack:center;-webkit-justify-content:center;justify-content:center;}@media screen and (min-width: 768px){.css-146sg2s{display:block;}}@media screen and (min-width: 1024px){.css-146sg2s{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;}}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-146sg2s"><style data-emotion="css 1jcpq9j">.css-1jcpq9j{box-sizing:border-box;display:none;-webkit-order:2;-ms-flex-order:2;order:2;margin-left:4.25rem;width:18.5rem;}@media screen and (min-width: 768px){.css-1jcpq9j{display:none;}}@media screen and (min-width: 1024px){.css-1jcpq9j{display:none;}}@media screen and (min-width: 1385px){.css-1jcpq9j{display:block;}}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" id="twilio-docs-content-aside-area" class="css-1jcpq9j"><style data-emotion="css 5v6lp">.css-5v6lp{box-sizing:border-box;position:-webkit-sticky;position:sticky;top:100px;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-5v6lp"><style data-emotion="css 1j4yy0t">.css-1j4yy0t{box-sizing:border-box;max-height:calc(100vh - 76px - 24px - 9rem);display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1j4yy0t"><style data-emotion="css 1vgbamy">.css-1vgbamy{margin:0;padding:0;color:rgb(18, 28, 45);font-size:0.875rem;line-height:1.25rem;margin-bottom:0.5rem;font-weight:600;letter-spacing:-.02em;display:block;}</style><span data-paste-element="HEADING" data-paste-core-version="20.6.0" class="css-1vgbamy">On this page</span><style data-emotion="css zs6taj">.css-zs6taj{box-sizing:border-box;overflow:auto;margin-bottom:1.75rem;-webkit-flex:auto;-ms-flex:auto;flex:auto;}</style><nav data-paste-element="BOX" data-paste-core-version="20.7.0" aria-label="document outline" class="css-zs6taj"><style data-emotion="css 15sthfg">.css-15sthfg{margin:0;padding:0;list-style:none;border-left-width:1px;border-left-style:solid;border-left-color:rgb(202, 205, 216);}</style><ul class="css-15sthfg"><style data-emotion="css 7tz84n">.css-7tz84n{display:block;margin-top:1rem;font-size:0.875rem;line-height:1.5rem;border-radius:2px;}.css-7tz84n.is-current{font-weight:600;}.css-7tz84n.is-current a{color:rgb(2, 99, 224);border-color:rgb(0, 109, 250);}.css-7tz84n:focus-within{box-shadow:0 0 0 2px 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css-4ao0a4"><style data-emotion="css bc5avt">.css-bc5avt{box-sizing:border-box;padding-left:3.25rem;color:rgb(96, 107, 133);-webkit-text-decoration:none;text-decoration:none;display:inline-block;width:100%;border-left-color:transparent;border-left-style:solid;border-left-width:2px;}.css-bc5avt:focus{outline:none;border-left-color:rgb(3, 11, 93);color:rgb(3, 11, 93);}.css-bc5avt:hover{border-left-color:rgb(3, 11, 93);color:rgb(3, 11, 93);}</style><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#setheaders" class="css-bc5avt">setHeaders(headers)</a></li><li class=" css-4ao0a4"><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#appendheader" class="css-bc5avt">appendHeader(key, value)</a></li><li class=" css-7tz84n"><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#cookies" class="css-yczov4">Cookies</a></li><li class=" css-4ao0a4"><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#setcookie" class="css-bc5avt">setCookie(key, value, attributes?)</a></li><li class=" css-4ao0a4"><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#removecookie" class="css-bc5avt">removeCookie(key)</a></li><li class=" css-7tz84n"><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#whats-next" class="css-yczov4">What's next?</a></li></ul></nav></div></div></div><style data-emotion="css 1gmyo3z">.css-1gmyo3z{position:relative;min-width:0;width:100%;word-wrap:break-word;max-width:57.5rem;}.css-1gmyo3z div+hr+section>hr{display:none;}.css-1gmyo3z div+hr+style+section>hr{display:none;}.css-1gmyo3z div+hr+hr{display:none;}</style><style data-emotion="css ykb4uo">.css-ykb4uo{box-sizing:border-box;position:relative;min-width:0;width:100%;word-wrap:break-word;max-width:57.5rem;}.css-ykb4uo div+hr+section>hr{display:none;}.css-ykb4uo div+hr+style+section>hr{display:none;}.css-ykb4uo div+hr+hr{display:none;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-ykb4uo"><style data-emotion="css 2g10on">.css-2g10on{box-sizing:border-box;display:block;}@media screen and (min-width: 768px){.css-2g10on{display:block;}}@media screen and (min-width: 1024px){.css-2g10on{display:block;}}@media screen and (min-width: 1385px){.css-2g10on{display:none;}}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-2g10on"><style data-emotion="css 6yc7tt">.css-6yc7tt{box-sizing:border-box;display:block;position:fixed;top:76px;margin-left:-1.5rem;margin-right:-1.5rem;padding-left:1.5rem;padding-top:1.5rem;padding-bottom:1.5rem;background-color:rgb(255, 255, 255);width:-webkit-fill-available;width:-moz-available;width:fill-available;z-index:20;}</style><nav data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-6yc7tt"><style data-emotion="css 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oa1jzu">.css-oa1jzu{box-sizing:border-box;-webkit-appearance:none;-moz-appearance:none;-ms-appearance:none;appearance:none;background:none;border:none;display:block;text-align:left;font-family:inherit;font-size:0.875rem;font-weight:400;line-height:1.25rem;margin:0;outline:none;padding-top:0.5rem;padding-bottom:0.5rem;border-left-style:solid;border-left-width:2px;border-color:transparent;cursor:pointer;padding-left:1.5rem;padding-right:1.5rem;width:100%;color:rgb(18, 28, 45);-webkit-text-decoration:none;text-decoration:none;color:rgb(2, 99, 224);background-color:rgb(244, 249, 255);border-color:rgb(0, 109, 250);}.css-oa1jzu:hover{color:rgb(2, 99, 224);background-color:rgb(244, 249, 255);border-color:rgb(0, 109, 250);}.css-oa1jzu:focus{color:rgb(2, 99, 224);background-color:rgb(244, 249, 255);border-color:rgb(0, 109, 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href="#setcookie" id=":Rhlaatasm:-5" role="menuitem" class="css-rrw0kl"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-kyczyy">setCookie(key, value, attributes?)</div></a><a data-paste-element="MOBILE_TOC_MENU_LINK" data-paste-core-version="20.7.0" href="#removecookie" id=":Rhlaatasm:-6" role="menuitem" class="css-rrw0kl"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-kyczyy">removeCookie(key)</div></a><a data-paste-element="MOBILE_TOC_MENU_LINK" data-paste-core-version="20.7.0" href="#whats-next" id=":Rhlaatasm:-7" role="menuitem" class="css-rrw0kl"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj">What's next?</div></a></div></nav></div><style data-emotion="css m8ey6p">.css-m8ey6p{box-sizing:border-box;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-webkit-justify-content:space-between;justify-content:space-between;-webkit-align-items:baseline;-webkit-box-align:baseline;-ms-flex-align:baseline;align-items:baseline;-webkit-column-gap:0.75rem;column-gap:0.75rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-m8ey6p"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><style data-emotion="css 10br7e4">.css-10br7e4{margin:0;padding:0;color:rgb(18, 28, 45);font-size:2rem;line-height:2.5rem;margin-bottom:0;font-weight:600;letter-spacing:-.02em;display:block;}</style><h1 data-paste-element="HEADING" data-paste-core-version="20.6.0" class="css-10br7e4">Setting and modifying Headers and Cookies</h1></div><style data-emotion="css 7lkj4y">section:focus-within .css-7lkj4y,section:hover .css-7lkj4y{opacity:1;}</style><style data-emotion="css 136zex2">.css-136zex2{box-sizing:border-box;opacity:1;-webkit-transition:opacity 0.25s ease-in-out;transition:opacity 0.25s ease-in-out;}section:focus-within .css-136zex2,section:hover .css-136zex2{opacity:1;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-136zex2"><style data-emotion="css knmi57">.css-knmi57{box-sizing:border-box;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-column-gap:0.75rem;column-gap:0.75rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-knmi57"><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsUpIcon-:R2cqlaalaatasm:"><title id="ThumbsUpIcon-:R2cqlaalaatasm:">Positive Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M6.5 7.45c.194-.216.406-.451.628-.707.799-.922 1.608-1.972 1.898-2.838.314-.938 1.139-1.487 1.966-1.395a1.57 1.57 0 011.085.621c.277.363.423.85.423 1.43 0 .327-.081.645-.174.924-.062.186-.139.383-.208.56l-.088.226c-.092.245-.15.432-.166.582-.014.134.01.19.033.222l.001.001a.415.415 0 00.1.058 1.9 1.9 0 00.371.11c.32.068.725.106 1.152.124.632.026 1.237.01 1.634-.002.147-.004.265-.008.345-.008.25 0 .731.008 1.158.218.224.11.443.28.603.537.159.256.239.567.239.924 0 1.218-.524 3.647-1.553 5.695-.31.616-.693.885-1.18 1.193-.574.364-1.145.575-1.767.575h-3c-1.116 0-2.204-.418-3.002-.883a6.393 6.393 0 01-.498-.322v.372a.5.5 0 01-.5.5H3a.5.5 0 01-.5-.5V7a.5.5 0 01.5-.5h3a.5.5 0 01.5.5v.45zm3.474-3.228c.186-.554.611-.751.909-.718a.57.57 0 01.399.233c.114.15.218.409.218.824 0 .17-.044.37-.123.61a9.287 9.287 0 01-.177.474c-.034.087-.07.177-.105.273-.095.252-.194.542-.225.827-.032.297.005.636.23.935.135.178.322.291.491.367.175.078.372.134.571.176.4.084.869.125 1.317.144.676.028 1.382.008 1.767-.003.118-.003.206-.006.254-.006.25 0 .519.018.717.115.088.044.15.098.194.168.044.07.089.19.089.396 0 1.04-.476 3.316-1.447 5.246-.184.367-.375.516-.82.797-.468.296-.855.42-1.233.42h-3c-.884 0-1.796-.338-2.498-.747a4.464 4.464 0 01-.813-.591 1.36 1.36 0 01-.184-.207l-.005-.008V8.968a7.331 7.331 0 01.329-.39l.308-.343c.223-.246.483-.534.746-.837.788-.909 1.73-2.097 2.091-3.176zM5.5 7.5h-2v7.667h2V7.5z"></path></svg></span></span></button><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsDownIcon-:R2dalaalaatasm:"><title id="ThumbsDownIcon-:R2dalaalaatasm:">Negative Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M13.5 12.55c-.194.215-.406.451-.628.707-.799.921-1.608 1.972-1.898 2.838-.314.938-1.139 1.487-1.966 1.395a1.57 1.57 0 01-1.085-.621c-.277-.363-.423-.85-.423-1.43 0-.327.081-.645.174-.924.062-.186.139-.383.208-.56l.088-.226c.092-.245.15-.432.166-.582.014-.134-.01-.19-.033-.222l-.001-.001a.416.416 0 00-.1-.058 1.902 1.902 0 00-.371-.11 7.35 7.35 0 00-1.152-.124 22.958 22.958 0 00-1.634.002 14.2 14.2 0 01-.345.008c-.25 0-.731-.008-1.158-.218a1.451 1.451 0 01-.603-.537c-.159-.257-.239-.567-.239-.924 0-1.218.524-3.648 1.553-5.696.31-.616.693-.884 1.18-1.192C5.807 3.71 6.378 3.5 7 3.5h3c1.116 0 2.204.417 3.002.883.178.104.345.212.498.321v-.37a.5.5 0 01.5-.5h3a.5.5 0 01.5.5V13a.5.5 0 01-.5.5h-3a.5.5 0 01-.5-.5v-.45zm-3.474 3.227c-.186.554-.611.752-.909.72a.571.571 0 01-.399-.234c-.114-.15-.218-.409-.218-.824a2 2 0 01.123-.61c.054-.16.113-.312.177-.475.034-.086.07-.176.105-.272.095-.252.194-.542.225-.828.032-.296-.005-.635-.23-.934a1.23 1.23 0 00-.491-.367 2.874 2.874 0 00-.571-.176 8.31 8.31 0 00-1.317-.144c-.676-.029-1.381-.008-1.767.003-.118.003-.206.006-.254.006-.25 0-.519-.018-.717-.115a.452.452 0 01-.194-.168c-.044-.07-.089-.19-.089-.396 0-1.04.476-3.316 1.447-5.247.184-.366.375-.515.82-.796.468-.296.855-.42 1.233-.42h3c.884 0 1.796.337 2.498.747.349.203.628.414.813.59.093.09.152.16.184.208l.005.007v4.98a7.245 7.245 0 01-.329.39 54.1 54.1 0 01-.308.342c-.223.247-.483.534-.746.838-.788.909-1.73 2.096-2.091 3.175zM14.5 12.5h2V4.833h-2V12.5z"></path></svg></span></span></button></div></div></div><style data-emotion="css 1y5brhz">.css-1y5brhz{box-sizing:border-box;margin:0;margin-bottom:2.25rem;margin-top:2.25rem;border-width:0;border-color:rgb(225, 227, 234);border-style:solid;border-bottom-width:1px;width:auto;}</style><hr data-paste-element="SEPARATOR" data-paste-core-version="20.7.0" aria-orientation="horizontal" class="css-1y5brhz"/><style data-emotion="css tcah8o">.css-tcah8o{margin:0;padding:0;color:rgb(18, 28, 45);font-size:0.875rem;line-height:1.5rem;font-weight:400;margin-bottom:1.5rem;}</style><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">It is also possible to set headers and cookies on the response that your Twilio Function returns. The <style data-emotion="css 1kwd7zr">.css-1kwd7zr{box-sizing:border-box;border-width:1px;border-style:solid;border-radius:4px;font-family:'TwilioSansMono',Courier,monospace;font-size:inherit;line-height:inherit;padding-left:0.25rem;padding-right:0.25rem;color:inherit;background-color:rgb(249, 249, 250);border-color:rgb(202, 205, 216);}</style><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Response</code> object exposes the following methods to allow you to customize what headers are sent in response to incoming requests.</p> <style data-emotion="css 1bt452l">.css-1bt452l{margin:0;padding:0;color:rgb(18, 28, 45);font-size:0.875rem;line-height:1.5rem;margin-bottom:1.5rem;font-weight:400;margin-left:1.5rem;list-style-type:disc;}</style><ul data-paste-element="UNORDERED_LIST" data-paste-core-version="20.6.0" class="css-1bt452l"> <style data-emotion="css 1pp5a8v">.css-1pp5a8v{margin:0;padding:0;color:rgb(18, 28, 45);font-size:0.875rem;line-height:1.5rem;font-weight:400;margin-bottom:0.5rem;margin-top:0.5rem;}</style><li data-paste-element="LIST_ITEM" data-paste-core-version="20.6.0" class="css-1pp5a8v"><a data-paste-element="ANCHOR" data-paste-core-version="20.7.0" href="/docs/serverless/functions-assets/functions/headers-and-cookies/setting-and-modifying#headers" title="Headers" class="css-lpeit6">Headers</a> <ul data-paste-element="UNORDERED_LIST" data-paste-core-version="20.6.0" class="css-1bt452l"> <li data-paste-element="LIST_ITEM" data-paste-core-version="20.6.0" class="css-1pp5a8v"><a data-paste-element="ANCHOR" data-paste-core-version="20.7.0" href="/docs/serverless/functions-assets/functions/headers-and-cookies/setting-and-modifying#setheaders" title="setHeaders()" class="css-lpeit6">setHeaders()</a></li> <li data-paste-element="LIST_ITEM" data-paste-core-version="20.6.0" class="css-1pp5a8v"><a data-paste-element="ANCHOR" data-paste-core-version="20.7.0" href="/docs/serverless/functions-assets/functions/headers-and-cookies/setting-and-modifying#appendheader" title="appendHeader()" class="css-lpeit6">appendHeader()</a></li> </ul> </li> <li data-paste-element="LIST_ITEM" data-paste-core-version="20.6.0" class="css-1pp5a8v"><a data-paste-element="ANCHOR" data-paste-core-version="20.7.0" href="/docs/serverless/functions-assets/functions/headers-and-cookies/setting-and-modifying#cookies" title="Cookies" class="css-lpeit6">Cookies</a> <ul data-paste-element="UNORDERED_LIST" data-paste-core-version="20.6.0" class="css-1bt452l"> <li data-paste-element="LIST_ITEM" data-paste-core-version="20.6.0" class="css-1pp5a8v"><a data-paste-element="ANCHOR" data-paste-core-version="20.7.0" href="/docs/serverless/functions-assets/functions/headers-and-cookies/setting-and-modifying#setcookie" title="setCookie()" class="css-lpeit6">setCookie()</a></li> <li data-paste-element="LIST_ITEM" data-paste-core-version="20.6.0" class="css-1pp5a8v"><a data-paste-element="ANCHOR" data-paste-core-version="20.7.0" href="/docs/serverless/functions-assets/functions/headers-and-cookies/setting-and-modifying#removecookie" title="removeCookie()" class="css-lpeit6">removeCookie()</a></li> </ul> </li> </ul> <section id="headers-section-indexable"><hr data-paste-element="SEPARATOR" data-paste-core-version="20.7.0" aria-orientation="horizontal" class="css-1y5brhz"/><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-m8ey6p"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><style data-emotion="css gt12nx">.css-gt12nx{box-sizing:border-box;-webkit-align-items:start;-webkit-box-align:start;-ms-flex-align:start;align-items:start;margin-bottom:1.25rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-gt12nx"><style data-emotion="css 16k5vxt">.css-16k5vxt{margin:0;padding:0;color:rgb(18, 28, 45);font-size:1.5rem;line-height:2rem;margin-bottom:0;font-weight:600;letter-spacing:-.02em;display:inline;}</style><h2 data-paste-element="HEADING" data-paste-core-version="20.6.0" id="headers" class="css-16k5vxt">Headers</h2><style data-emotion="css f02h4i">.css-f02h4i{box-sizing:border-box;margin-bottom:0;-webkit-text-decoration:none;text-decoration:none;margin-left:0.5rem;color:rgb(96, 107, 133);border-radius:2px;outline:none;display:inline-block;vertical-align:text-bottom;}.css-f02h4i:hover{color:rgb(3, 11, 93);}.css-f02h4i:focus{box-shadow:0 0 0 2px #ffffff,0 0 0 3px #006dfa,0 0 0 5px #cce4ff;color:rgb(3, 11, 93);}</style><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#headers" class="css-f02h4i"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" fill="none" viewBox="0 0 20 20" aria-labelledby="LinkIcon-:R2l6hclaatasm:"><title id="LinkIcon-:R2l6hclaatasm:">headers page anchor</title><path fill="currentColor" d="M13.074 5.674a2.3 2.3 0 013.252 3.252l-2.97 2.97A2.3 2.3 0 019.869 8.92a.5.5 0 10-.808-.588 3.3 3.3 0 005.004 4.272l2.97-2.97a3.3 3.3 0 00-4.667-4.666l-.467.466a.5.5 0 10.707.707l.467-.466z"></path><path fill="currentColor" d="M9.18 7.163a2.3 2.3 0 011.952 3.65.5.5 0 10.809.59A3.3 3.3 0 006.936 7.13l-2.97 2.97a3.3 3.3 0 004.667 4.667l.58-.58a.5.5 0 10-.707-.707l-.58.58a2.3 2.3 0 11-3.252-3.252l2.97-2.97c.409-.41.958-.652 1.536-.675z"></path></svg></span></a></div></div><style data-emotion="css 1kam78h">.css-1kam78h{box-sizing:border-box;opacity:0;-webkit-transition:opacity 0.25s ease-in-out;transition:opacity 0.25s ease-in-out;}section:focus-within .css-1kam78h,section:hover .css-1kam78h{opacity:1;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1kam78h"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-knmi57"><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsUpIcon-:Rj6lahclaatasm:"><title id="ThumbsUpIcon-:Rj6lahclaatasm:">Positive Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M6.5 7.45c.194-.216.406-.451.628-.707.799-.922 1.608-1.972 1.898-2.838.314-.938 1.139-1.487 1.966-1.395a1.57 1.57 0 011.085.621c.277.363.423.85.423 1.43 0 .327-.081.645-.174.924-.062.186-.139.383-.208.56l-.088.226c-.092.245-.15.432-.166.582-.014.134.01.19.033.222l.001.001a.415.415 0 00.1.058 1.9 1.9 0 00.371.11c.32.068.725.106 1.152.124.632.026 1.237.01 1.634-.002.147-.004.265-.008.345-.008.25 0 .731.008 1.158.218.224.11.443.28.603.537.159.256.239.567.239.924 0 1.218-.524 3.647-1.553 5.695-.31.616-.693.885-1.18 1.193-.574.364-1.145.575-1.767.575h-3c-1.116 0-2.204-.418-3.002-.883a6.393 6.393 0 01-.498-.322v.372a.5.5 0 01-.5.5H3a.5.5 0 01-.5-.5V7a.5.5 0 01.5-.5h3a.5.5 0 01.5.5v.45zm3.474-3.228c.186-.554.611-.751.909-.718a.57.57 0 01.399.233c.114.15.218.409.218.824 0 .17-.044.37-.123.61a9.287 9.287 0 01-.177.474c-.034.087-.07.177-.105.273-.095.252-.194.542-.225.827-.032.297.005.636.23.935.135.178.322.291.491.367.175.078.372.134.571.176.4.084.869.125 1.317.144.676.028 1.382.008 1.767-.003.118-.003.206-.006.254-.006.25 0 .519.018.717.115.088.044.15.098.194.168.044.07.089.19.089.396 0 1.04-.476 3.316-1.447 5.246-.184.367-.375.516-.82.797-.468.296-.855.42-1.233.42h-3c-.884 0-1.796-.338-2.498-.747a4.464 4.464 0 01-.813-.591 1.36 1.36 0 01-.184-.207l-.005-.008V8.968a7.331 7.331 0 01.329-.39l.308-.343c.223-.246.483-.534.746-.837.788-.909 1.73-2.097 2.091-3.176zM5.5 7.5h-2v7.667h2V7.5z"></path></svg></span></span></button><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsDownIcon-:Rjalahclaatasm:"><title id="ThumbsDownIcon-:Rjalahclaatasm:">Negative Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M13.5 12.55c-.194.215-.406.451-.628.707-.799.921-1.608 1.972-1.898 2.838-.314.938-1.139 1.487-1.966 1.395a1.57 1.57 0 01-1.085-.621c-.277-.363-.423-.85-.423-1.43 0-.327.081-.645.174-.924.062-.186.139-.383.208-.56l.088-.226c.092-.245.15-.432.166-.582.014-.134-.01-.19-.033-.222l-.001-.001a.416.416 0 00-.1-.058 1.902 1.902 0 00-.371-.11 7.35 7.35 0 00-1.152-.124 22.958 22.958 0 00-1.634.002 14.2 14.2 0 01-.345.008c-.25 0-.731-.008-1.158-.218a1.451 1.451 0 01-.603-.537c-.159-.257-.239-.567-.239-.924 0-1.218.524-3.648 1.553-5.696.31-.616.693-.884 1.18-1.192C5.807 3.71 6.378 3.5 7 3.5h3c1.116 0 2.204.417 3.002.883.178.104.345.212.498.321v-.37a.5.5 0 01.5-.5h3a.5.5 0 01.5.5V13a.5.5 0 01-.5.5h-3a.5.5 0 01-.5-.5v-.45zm-3.474 3.227c-.186.554-.611.752-.909.72a.571.571 0 01-.399-.234c-.114-.15-.218-.409-.218-.824a2 2 0 01.123-.61c.054-.16.113-.312.177-.475.034-.086.07-.176.105-.272.095-.252.194-.542.225-.828.032-.296-.005-.635-.23-.934a1.23 1.23 0 00-.491-.367 2.874 2.874 0 00-.571-.176 8.31 8.31 0 00-1.317-.144c-.676-.029-1.381-.008-1.767.003-.118.003-.206.006-.254.006-.25 0-.519-.018-.717-.115a.452.452 0 01-.194-.168c-.044-.07-.089-.19-.089-.396 0-1.04.476-3.316 1.447-5.247.184-.366.375-.515.82-.796.468-.296.855-.42 1.233-.42h3c.884 0 1.796.337 2.498.747.349.203.628.414.813.59.093.09.152.16.184.208l.005.007v4.98a7.245 7.245 0 01-.329.39 54.1 54.1 0 01-.308.342c-.223.247-.483.534-.746.838-.788.909-1.73 2.096-2.091 3.175zM14.5 12.5h2V4.833h-2V12.5z"></path></svg></span></span></button></div></div></div></section> <section id="setheaders-section-indexable"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-m8ey6p"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><style data-emotion="css a8lapc">.css-a8lapc{box-sizing:border-box;-webkit-align-items:start;-webkit-box-align:start;-ms-flex-align:start;align-items:start;margin-bottom:1rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-a8lapc"><style data-emotion="css yftbgj">.css-yftbgj{margin:0;padding:0;color:rgb(18, 28, 45);font-size:1.25rem;line-height:1.75rem;margin-bottom:0;font-weight:600;letter-spacing:-.02em;display:inline;}</style><h3 data-paste-element="HEADING" data-paste-core-version="20.6.0" id="setheaders" class="css-yftbgj"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">setHeaders(headers)</code></h3><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#setheaders" class="css-f02h4i"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" fill="none" viewBox="0 0 20 20" aria-labelledby="LinkIcon-:R1aj89slaatasm:"><title id="LinkIcon-:R1aj89slaatasm:">setheaders page anchor</title><path fill="currentColor" d="M13.074 5.674a2.3 2.3 0 013.252 3.252l-2.97 2.97A2.3 2.3 0 019.869 8.92a.5.5 0 10-.808-.588 3.3 3.3 0 005.004 4.272l2.97-2.97a3.3 3.3 0 00-4.667-4.666l-.467.466a.5.5 0 10.707.707l.467-.466z"></path><path fill="currentColor" d="M9.18 7.163a2.3 2.3 0 011.952 3.65.5.5 0 10.809.59A3.3 3.3 0 006.936 7.13l-2.97 2.97a3.3 3.3 0 004.667 4.667l.58-.58a.5.5 0 10-.707-.707l-.58.58a2.3 2.3 0 11-3.252-3.252l2.97-2.97c.409-.41.958-.652 1.536-.675z"></path></svg></span></a></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1kam78h"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-knmi57"><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsUpIcon-:R9jal89slaatasm:"><title id="ThumbsUpIcon-:R9jal89slaatasm:">Positive Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M6.5 7.45c.194-.216.406-.451.628-.707.799-.922 1.608-1.972 1.898-2.838.314-.938 1.139-1.487 1.966-1.395a1.57 1.57 0 011.085.621c.277.363.423.85.423 1.43 0 .327-.081.645-.174.924-.062.186-.139.383-.208.56l-.088.226c-.092.245-.15.432-.166.582-.014.134.01.19.033.222l.001.001a.415.415 0 00.1.058 1.9 1.9 0 00.371.11c.32.068.725.106 1.152.124.632.026 1.237.01 1.634-.002.147-.004.265-.008.345-.008.25 0 .731.008 1.158.218.224.11.443.28.603.537.159.256.239.567.239.924 0 1.218-.524 3.647-1.553 5.695-.31.616-.693.885-1.18 1.193-.574.364-1.145.575-1.767.575h-3c-1.116 0-2.204-.418-3.002-.883a6.393 6.393 0 01-.498-.322v.372a.5.5 0 01-.5.5H3a.5.5 0 01-.5-.5V7a.5.5 0 01.5-.5h3a.5.5 0 01.5.5v.45zm3.474-3.228c.186-.554.611-.751.909-.718a.57.57 0 01.399.233c.114.15.218.409.218.824 0 .17-.044.37-.123.61a9.287 9.287 0 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viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsDownIcon-:R9lal89slaatasm:"><title id="ThumbsDownIcon-:R9lal89slaatasm:">Negative Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M13.5 12.55c-.194.215-.406.451-.628.707-.799.921-1.608 1.972-1.898 2.838-.314.938-1.139 1.487-1.966 1.395a1.57 1.57 0 01-1.085-.621c-.277-.363-.423-.85-.423-1.43 0-.327.081-.645.174-.924.062-.186.139-.383.208-.56l.088-.226c.092-.245.15-.432.166-.582.014-.134-.01-.19-.033-.222l-.001-.001a.416.416 0 00-.1-.058 1.902 1.902 0 00-.371-.11 7.35 7.35 0 00-1.152-.124 22.958 22.958 0 00-1.634.002 14.2 14.2 0 01-.345.008c-.25 0-.731-.008-1.158-.218a1.451 1.451 0 01-.603-.537c-.159-.257-.239-.567-.239-.924 0-1.218.524-3.648 1.553-5.696.31-.616.693-.884 1.18-1.192C5.807 3.71 6.378 3.5 7 3.5h3c1.116 0 2.204.417 3.002.883.178.104.345.212.498.321v-.37a.5.5 0 01.5-.5h3a.5.5 0 01.5.5V13a.5.5 0 01-.5.5h-3a.5.5 0 01-.5-.5v-.45zm-3.474 3.227c-.186.554-.611.752-.909.72a.571.571 0 01-.399-.234c-.114-.15-.218-.409-.218-.824a2 2 0 01.123-.61c.054-.16.113-.312.177-.475.034-.086.07-.176.105-.272.095-.252.194-.542.225-.828.032-.296-.005-.635-.23-.934a1.23 1.23 0 00-.491-.367 2.874 2.874 0 00-.571-.176 8.31 8.31 0 00-1.317-.144c-.676-.029-1.381-.008-1.767.003-.118.003-.206.006-.254.006-.25 0-.519-.018-.717-.115a.452.452 0 01-.194-.168c-.044-.07-.089-.19-.089-.396 0-1.04.476-3.316 1.447-5.247.184-.366.375-.515.82-.796.468-.296.855-.42 1.233-.42h3c.884 0 1.796.337 2.498.747.349.203.628.414.813.59.093.09.152.16.184.208l.005.007v4.98a7.245 7.245 0 01-.329.39 54.1 54.1 0 01-.308.342c-.223.247-.483.534-.746.838-.788.909-1.73 2.096-2.091 3.175zM14.5 12.5h2V4.833h-2V12.5z"></path></svg></span></span></button></div></div></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">This method allows you to set multiple headers in a single command. It accepts an object of key-value pairs of headers and their corresponding values. You may also set multi-value headers by making the intended header an array.</p><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">If you include the <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Set-Cookie</code> header in this object, cookies will also be set to that value in addition to any other changes. Cookies must be strings with the key and value delimited by an <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">=</code> sign, such as <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">'Key=Value'</code> or as a list of values such as <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">[‘Key=Value', ‘Agent=Smith']</code>.</p><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o"><strong>Method Parameters</strong></p><style data-emotion="css 161rs34">.css-161rs34{box-sizing:border-box;margin-bottom:1.25rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-161rs34"><style data-emotion="css 1pev1tl">.css-1pev1tl{box-sizing:border-box;overflow-x:auto;}</style><div data-paste-element="TABLE_WRAPPER" data-paste-core-version="20.7.0" class="css-1pev1tl"><style data-emotion="css 1yrg7uf">.css-1yrg7uf{box-sizing:border-box;border-collapse:separate;border-color:rgb(225, 227, 234);border-spacing:0;border-style:solid;border-width:1px;table-layout:auto;width:100%;}</style><table data-paste-element="TABLE" data-paste-core-version="20.7.0" class="css-1yrg7uf"><style data-emotion="css c08gur">.css-c08gur{background-color:rgb(249, 249, 250);color:rgb(96, 107, 133);box-sizing:border-box;}</style><thead data-paste-element="THEAD" data-paste-core-version="20.7.0" class="css-c08gur"><style data-emotion="css 1e22c8r">.css-1e22c8r{box-sizing:border-box;vertical-align:middle;}.css-1e22c8r:nth-of-type(even){background-color:transparent;}.css-1e22c8r:last-of-type{border-width:0;}</style><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><style data-emotion="css kczchh">.css-kczchh{box-sizing:border-box;border-bottom-style:solid;border-bottom-color:rgb(225, 227, 234);border-bottom-width:1px;font-size:0.875rem;line-height:1.25rem;font-weight:600;padding-bottom:0.75rem;padding-left:1rem;padding-right:1rem;padding-top:0.75rem;position:relative;text-align:left;vertical-align:inherit;word-wrap:break-word;color:inherit;}</style><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Name</th><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Type</th></tr></thead><style data-emotion="css dzsvvb">.css-dzsvvb{box-sizing:border-box;color:rgb(18, 28, 45);}</style><style data-emotion="css 1u05hs8">.css-1u05hs8{background-color:rgb(255, 255, 255);box-sizing:border-box;color:rgb(18, 28, 45);}.css-1u05hs8>tr:last-of-type>td{border-bottom-width:0;}.css-1u05hs8>tr:last-of-type>th{border-bottom-width:0;}</style><tbody data-paste-element="TBODY" data-paste-core-version="20.7.0" class="css-1u05hs8"><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><style data-emotion="css 4rjmal">.css-4rjmal{box-sizing:border-box;border-style:solid;border-color:rgb(225, 227, 234);border-width:0;border-bottom-width:1px;font-size:0.875rem;line-height:1.25rem;padding:1rem;position:relative;text-align:left;vertical-align:inherit;word-wrap:break-word;color:inherit;}</style><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal">headers</td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Object<string, string | string[]></code></td></tr></tbody></table></div></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o"><strong>Examples</strong></p><style data-emotion="css slcqjs">.css-slcqjs{box-sizing:border-box;margin-bottom:1.5rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-slcqjs"><style data-emotion="css 1ft5k6i">.css-1ft5k6i{box-sizing:border-box;background-color:rgb(31, 48, 76);border-radius:4px;overflow:hidden;}</style><div data-paste-element="CODE_BLOCK_WRAPPER" data-paste-core-version="20.7.0" class="css-1ft5k6i"><style data-emotion="css 1lrte93">.css-1lrte93{box-sizing:border-box;background-color:rgb(18, 28, 45);display:grid;grid-template-rows:auto 1fr;grid-template-areas:"button-group" "code-block";row-gap:0.25rem;padding-top:1rem;}</style><div data-paste-element="CODE_BLOCK" data-paste-core-version="20.7.0" class="css-1lrte93"><style data-emotion="css ba3ttd">.css-ba3ttd{box-sizing:border-box;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-column-gap:0.75rem;column-gap:0.75rem;-webkit-box-pack:end;-ms-flex-pack:end;-webkit-justify-content:flex-end;justify-content:flex-end;grid-area:button-group;padding-right:1.5rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-ba3ttd"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><style data-emotion="css 11aawc9">.css-11aawc9{box-sizing:border-box;width:auto;-webkit-appearance:none;-moz-appearance:none;-ms-appearance:none;appearance:none;background:none;display:inline-block;border:none;outline:none;-webkit-transition:background-color 100ms ease-in,box-shadow 100ms ease-in,color 100ms ease-in;transition:background-color 100ms ease-in,box-shadow 100ms ease-in,color 100ms ease-in;font-family:inherit;font-weight:600;-webkit-text-decoration:none;text-decoration:none;position:relative;margin:0;border-radius:4px;cursor:pointer;color:rgb(255, 255, 255);background-color:rgb(18, 28, 45);box-shadow:0 0 0 1px #394762;padding:0.25rem;}.css-11aawc9:hover{-webkit-text-decoration:none;text-decoration:none;color:rgb(255, 255, 255);background-color:rgb(31, 48, 76);box-shadow:0 0 0 1px #f4f4f6;}.css-11aawc9:focus{-webkit-text-decoration:none;text-decoration:none;box-shadow:0 0 0 1px #394762,0 0 0 3px #121c2d,0 0 0 4px #ffffff,0 0 0 6px rgba(255, 255, 255, 0.2);}.css-11aawc9:active,.css-11aawc9[data-active=true]{-webkit-text-decoration:none;text-decoration:none;box-shadow:0 0 0 1px #ffffff;color:rgb(255, 255, 255);background-color:rgb(31, 48, 76);}</style><button data-paste-element="CODE_BLOCK_COPY_BUTTON" data-paste-core-version="20.7.0" type="button" tabindex="0" aria-describedby=":R16d9pslaatasm:" aria-busy="false" class="css-11aawc9"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="CopyIcon-:R6j76d9pslaatasm:"><path fill="currentColor" fill-rule="evenodd" d="M13.469 2.5c.63 0 1.15.48 1.212 1.094l.007.125-.001 1.593h1.407c.73 0 1.331.558 1.4 1.271l.006.136v9.375c0 .776-.63 1.406-1.406 1.406H6.719c-.777 0-1.407-.63-1.407-1.406v-1.407H3.719c-.631 0-1.15-.48-1.213-1.094L2.5 13.47v-9.75c0-.631.48-1.15 1.094-1.213L3.72 2.5h9.75zm2.625 3.75H6.719a.469.469 0 00-.469.469v9.375c0 .259.21.468.469.468h9.375c.259 0 .468-.21.468-.468V6.719a.469.469 0 00-.468-.469zm-2.625-2.813h-9.75a.281.281 0 00-.274.217l-.007.065v9.75c0 .133.092.244.216.274l.065.007 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data-emotion="css 1p78m0">.css-1p78m0{display:grid;}.css-1p78m0:focus{outline:none;box-shadow:inset 0 0 0 1px #006dfa,inset 0 0 0 3px #cce4ff;border-radius:4px;}</style><pre data-theme="github-dark" data-lang="javascript" style="color:white;font-family:'TwilioSansMono', Courier, monospace;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.5;font-size:1em;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-hyphens:none;-moz-hyphens:none;-ms-hyphens:none;hyphens:none;margin:0;overflow:auto;background:inherit;width:100%;padding-bottom:2rem" tabindex="0" class="css-1p78m0" data-ch="true"><div style="min-width:fit-content"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><style data-emotion="css 1m136ci">.css-1m136ci{box-sizing:border-box;display:inline-block;box-sizing:content-box;opacity:0.5;padding-left:1.5rem;padding-right:1.5ch;text-align:right;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;min-width:2ch;}</style><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">1</span><style data-emotion="css luzz01">.css-luzz01{box-sizing:border-box;display:inline-block;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#79C0FF">exports</span><span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">handler</span> <span style="color:#FF7B72">=</span> <span style="color:#C9D1D9">(</span><span style="color:#FFA657">context</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">event</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">callback</span><span style="color:#C9D1D9">)</span> <span style="color:#FF7B72">=></span> <span style="color:#C9D1D9">{</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">2</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">const</span> <span style="color:#79C0FF">response</span> <span style="color:#FF7B72">= new</span> <span style="color:#C9D1D9">Twilio.</span><span style="color:#D2A8FF">Response</span><span style="color:#C9D1D9">();</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">3</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">response.</span><span style="color:#D2A8FF">setHeaders</span><span style="color:#C9D1D9">({</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">4</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// Set a single header</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">5</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#A5D6FF">'content-type'</span><span style="color:#C9D1D9">:</span> <span style="color:#A5D6FF">'application/json'</span><span style="color:#C9D1D9">,</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">6</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// You can set a header with multiple values by providing an array</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">7</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#A5D6FF">'cache-control'</span><span style="color:#C9D1D9">: [</span><span style="color:#A5D6FF">'no-cache'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'private'</span><span style="color:#C9D1D9">],</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">8</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// You may also optionally set cookies via the "Set-Cookie" key</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">9</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#A5D6FF">'set-cookie'</span><span style="color:#C9D1D9">:</span> <span style="color:#A5D6FF">'Foo=Bar'</span><span style="color:#C9D1D9">,</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">10</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">});</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">11</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">12</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">return</span> <span style="color:#D2A8FF">callback</span><span style="color:#C9D1D9">(</span><span style="color:#79C0FF">null</span><span style="color:#C9D1D9">, response);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">13</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#C9D1D9">};</span></div></div></div></div></pre></div></div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-slcqjs"><div data-paste-element="CODE_BLOCK_WRAPPER" data-paste-core-version="20.7.0" class="css-1ft5k6i"><div data-paste-element="CODE_BLOCK" data-paste-core-version="20.7.0" class="css-1lrte93"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-ba3ttd"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><button data-paste-element="CODE_BLOCK_COPY_BUTTON" data-paste-core-version="20.7.0" type="button" tabindex="0" aria-describedby=":R16da1slaatasm:" aria-busy="false" class="css-11aawc9"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="CopyIcon-:R6j76da1slaatasm:"><path fill="currentColor" fill-rule="evenodd" d="M13.469 2.5c.63 0 1.15.48 1.212 1.094l.007.125-.001 1.593h1.407c.73 0 1.331.558 1.4 1.271l.006.136v9.375c0 .776-.63 1.406-1.406 1.406H6.719c-.777 0-1.407-.63-1.407-1.406v-1.407H3.719c-.631 0-1.15-.48-1.213-1.094L2.5 13.47v-9.75c0-.631.48-1.15 1.094-1.213L3.72 2.5h9.75zm2.625 3.75H6.719a.469.469 0 00-.469.469v9.375c0 .259.21.468.469.468h9.375c.259 0 .468-.21.468-.468V6.719a.469.469 0 00-.468-.469zm-2.625-2.813h-9.75a.281.281 0 00-.274.217l-.007.065v9.75c0 .133.092.244.216.274l.065.007 1.593-.001v-7.03c0-.731.558-1.332 1.271-1.4l.136-.006 7.031-.001V3.719a.281.281 0 00-.217-.274l-.064-.007z"></path></svg></span><span data-paste-element="BOX" data-paste-core-version="20.7.0" aria-live="polite" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1cbdvo6">Copy code block</span></span></span></span></button></div></div><div data-paste-element="CODE_BLOCK_CONTENT" data-paste-core-version="20.7.0" class="css-1yf26d7"><pre data-theme="github-dark" data-lang="javascript" style="color:white;font-family:'TwilioSansMono', Courier, monospace;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.5;font-size:1em;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-hyphens:none;-moz-hyphens:none;-ms-hyphens:none;hyphens:none;margin:0;overflow:auto;background:inherit;width:100%;padding-bottom:2rem" tabindex="0" class="css-1p78m0" data-ch="true"><div style="min-width:fit-content"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">1</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#79C0FF">exports</span><span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">handler</span> <span style="color:#FF7B72">=</span> <span style="color:#C9D1D9">(</span><span style="color:#FFA657">context</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">event</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">callback</span><span style="color:#C9D1D9">)</span> <span style="color:#FF7B72">=></span> <span style="color:#C9D1D9">{</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">2</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">const</span> <span style="color:#79C0FF">response</span> <span style="color:#FF7B72">= new</span> <span style="color:#C9D1D9">Twilio.</span><span style="color:#D2A8FF">Response</span><span style="color:#C9D1D9">();</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">3</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">response.</span><span style="color:#D2A8FF">setHeaders</span><span style="color:#C9D1D9">({</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">4</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// You may also set cookie attributes by including a semicolon</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">5</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// (`;`) delimited list of attributes</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">6</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#A5D6FF">'set-cookie'</span><span style="color:#C9D1D9">: [</span><span style="color:#A5D6FF">'Foo=Bar;Max-Age=86400'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'Agent=Smith;HttpOnly;Secure'</span><span style="color:#C9D1D9">],</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">7</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">});</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">8</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">9</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">return</span> <span style="color:#D2A8FF">callback</span><span style="color:#C9D1D9">(</span><span style="color:#79C0FF">null</span><span style="color:#C9D1D9">, response);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">10</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#C9D1D9">};</span></div></div></div></div></pre></div></div></div></div></section> <section id="appendheader-section-indexable"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-m8ey6p"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-a8lapc"><h3 data-paste-element="HEADING" data-paste-core-version="20.6.0" id="appendheader" class="css-yftbgj"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">appendHeader(key, value)</code></h3><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#appendheader" class="css-f02h4i"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" fill="none" viewBox="0 0 20 20" aria-labelledby="LinkIcon-:R1aj8aclaatasm:"><title id="LinkIcon-:R1aj8aclaatasm:">appendheader page anchor</title><path fill="currentColor" d="M13.074 5.674a2.3 2.3 0 013.252 3.252l-2.97 2.97A2.3 2.3 0 019.869 8.92a.5.5 0 10-.808-.588 3.3 3.3 0 005.004 4.272l2.97-2.97a3.3 3.3 0 00-4.667-4.666l-.467.466a.5.5 0 10.707.707l.467-.466z"></path><path fill="currentColor" d="M9.18 7.163a2.3 2.3 0 011.952 3.65.5.5 0 10.809.59A3.3 3.3 0 006.936 7.13l-2.97 2.97a3.3 3.3 0 004.667 4.667l.58-.58a.5.5 0 10-.707-.707l-.58.58a2.3 2.3 0 11-3.252-3.252l2.97-2.97c.409-.41.958-.652 1.536-.675z"></path></svg></span></a></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1kam78h"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-knmi57"><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsUpIcon-:R9jal8aclaatasm:"><title id="ThumbsUpIcon-:R9jal8aclaatasm:">Positive Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M6.5 7.45c.194-.216.406-.451.628-.707.799-.922 1.608-1.972 1.898-2.838.314-.938 1.139-1.487 1.966-1.395a1.57 1.57 0 011.085.621c.277.363.423.85.423 1.43 0 .327-.081.645-.174.924-.062.186-.139.383-.208.56l-.088.226c-.092.245-.15.432-.166.582-.014.134.01.19.033.222l.001.001a.415.415 0 00.1.058 1.9 1.9 0 00.371.11c.32.068.725.106 1.152.124.632.026 1.237.01 1.634-.002.147-.004.265-.008.345-.008.25 0 .731.008 1.158.218.224.11.443.28.603.537.159.256.239.567.239.924 0 1.218-.524 3.647-1.553 5.695-.31.616-.693.885-1.18 1.193-.574.364-1.145.575-1.767.575h-3c-1.116 0-2.204-.418-3.002-.883a6.393 6.393 0 01-.498-.322v.372a.5.5 0 01-.5.5H3a.5.5 0 01-.5-.5V7a.5.5 0 01.5-.5h3a.5.5 0 01.5.5v.45zm3.474-3.228c.186-.554.611-.751.909-.718a.57.57 0 01.399.233c.114.15.218.409.218.824 0 .17-.044.37-.123.61a9.287 9.287 0 01-.177.474c-.034.087-.07.177-.105.273-.095.252-.194.542-.225.827-.032.297.005.636.23.935.135.178.322.291.491.367.175.078.372.134.571.176.4.084.869.125 1.317.144.676.028 1.382.008 1.767-.003.118-.003.206-.006.254-.006.25 0 .519.018.717.115.088.044.15.098.194.168.044.07.089.19.089.396 0 1.04-.476 3.316-1.447 5.246-.184.367-.375.516-.82.797-.468.296-.855.42-1.233.42h-3c-.884 0-1.796-.338-2.498-.747a4.464 4.464 0 01-.813-.591 1.36 1.36 0 01-.184-.207l-.005-.008V8.968a7.331 7.331 0 01.329-.39l.308-.343c.223-.246.483-.534.746-.837.788-.909 1.73-2.097 2.091-3.176zM5.5 7.5h-2v7.667h2V7.5z"></path></svg></span></span></button><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsDownIcon-:R9lal8aclaatasm:"><title id="ThumbsDownIcon-:R9lal8aclaatasm:">Negative Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M13.5 12.55c-.194.215-.406.451-.628.707-.799.921-1.608 1.972-1.898 2.838-.314.938-1.139 1.487-1.966 1.395a1.57 1.57 0 01-1.085-.621c-.277-.363-.423-.85-.423-1.43 0-.327.081-.645.174-.924.062-.186.139-.383.208-.56l.088-.226c.092-.245.15-.432.166-.582.014-.134-.01-.19-.033-.222l-.001-.001a.416.416 0 00-.1-.058 1.902 1.902 0 00-.371-.11 7.35 7.35 0 00-1.152-.124 22.958 22.958 0 00-1.634.002 14.2 14.2 0 01-.345.008c-.25 0-.731-.008-1.158-.218a1.451 1.451 0 01-.603-.537c-.159-.257-.239-.567-.239-.924 0-1.218.524-3.648 1.553-5.696.31-.616.693-.884 1.18-1.192C5.807 3.71 6.378 3.5 7 3.5h3c1.116 0 2.204.417 3.002.883.178.104.345.212.498.321v-.37a.5.5 0 01.5-.5h3a.5.5 0 01.5.5V13a.5.5 0 01-.5.5h-3a.5.5 0 01-.5-.5v-.45zm-3.474 3.227c-.186.554-.611.752-.909.72a.571.571 0 01-.399-.234c-.114-.15-.218-.409-.218-.824a2 2 0 01.123-.61c.054-.16.113-.312.177-.475.034-.086.07-.176.105-.272.095-.252.194-.542.225-.828.032-.296-.005-.635-.23-.934a1.23 1.23 0 00-.491-.367 2.874 2.874 0 00-.571-.176 8.31 8.31 0 00-1.317-.144c-.676-.029-1.381-.008-1.767.003-.118.003-.206.006-.254.006-.25 0-.519-.018-.717-.115a.452.452 0 01-.194-.168c-.044-.07-.089-.19-.089-.396 0-1.04.476-3.316 1.447-5.247.184-.366.375-.515.82-.796.468-.296.855-.42 1.233-.42h3c.884 0 1.796.337 2.498.747.349.203.628.414.813.59.093.09.152.16.184.208l.005.007v4.98a7.245 7.245 0 01-.329.39 54.1 54.1 0 01-.308.342c-.223.247-.483.534-.746.838-.788.909-1.73 2.096-2.091 3.175zM14.5 12.5h2V4.833h-2V12.5z"></path></svg></span></span></button></div></div></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">This method allows you to add a single header to the response. It accepts the name of the header and its intended value.</p><style data-emotion="css irnnze">.css-irnnze{margin-top:1.5rem;margin-bottom:1.5rem;}.css-irnnze h1,.css-irnnze h2,.css-irnnze h3,.css-irnnze h4,.css-irnnze h5,.css-irnnze h6,.css-irnnze p,.css-irnnze li,.css-irnnze ul,.css-irnnze ol,.css-irnnze [data-paste-element=DISCLOSURE] span[data-paste-element=HEADING]{color:inherit;}[data-paste-element=HORIZONTAL_TAB_PANEL] .css-irnnze{margin-top:0;}</style><style data-emotion="css rj5eb">.css-rj5eb{box-sizing:border-box;margin-top:1.5rem;margin-bottom:1.5rem;}.css-rj5eb h1,.css-rj5eb h2,.css-rj5eb h3,.css-rj5eb h4,.css-rj5eb h5,.css-rj5eb h6,.css-rj5eb p,.css-rj5eb li,.css-rj5eb ul,.css-rj5eb ol,.css-rj5eb [data-paste-element=DISCLOSURE] span[data-paste-element=HEADING]{color:inherit;}[data-paste-element=HORIZONTAL_TAB_PANEL] .css-rj5eb{margin-top:0;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-rj5eb"><style data-emotion="css 1v816ix">.css-1v816ix{box-sizing:border-box;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;padding:1.5rem;border-left-style:solid;border-left-width:2px;-webkit-align-items:start;-webkit-box-align:start;-ms-flex-align:start;align-items:start;-webkit-column-gap:1rem;column-gap:1rem;background-color:rgb(249, 249, 250);color:rgb(3, 11, 93);border-color:rgb(102, 179, 255);}</style><div data-paste-element="CALLOUT" data-paste-core-version="20.7.0" class="css-1v816ix"><div data-paste-element="CALLOUT_ICON" data-paste-core-version="20.7.0" class="css-roynbj"><style data-emotion="css 1cst9vu">.css-1cst9vu{box-sizing:border-box;line-height:0;display:block;color:rgb(3, 11, 93);width:1.25rem;height:1.25rem;-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;}</style><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-1cst9vu"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="NeutralIcon-:R6d8qclaatasm:"><path fill="currentColor" fill-rule="evenodd" d="M10 2a8 8 0 110 16 8 8 0 010-16zm0 7c-.26.01-.528.08-.707.24-.178.158-.292.355-.292.575v3.37c0 .21.11.428.292.577.173.14.457.247.707.237.26-.008.528-.078.707-.237.178-.16.292-.355.292-.577v-3.37a.766.766 0 00-.292-.575A1.14 1.14 0 0010 9zm0-3l-.266.036c-.17.047-.318.131-.441.253l-.156.198A.958.958 0 009 6.98v.04a.728.728 0 00.086.378c.04.121.108.227.206.315.09.094.197.163.321.202.12.06.248.09.386.084l.266-.035c.17-.047.318-.131.441-.253l.156-.198A.958.958 0 0011 7.02v-.04a.728.728 0 00-.086-.378.721.721 0 00-.206-.315.757.757 0 00-.321-.202.767.767 0 00-.386-.084z"></path></svg></span><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1cbdvo6">(information)</span></div><style data-emotion="css fkfdww">.css-fkfdww{box-sizing:border-box;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;row-gap:0.5rem;-webkit-flex:1;-ms-flex:1;flex:1;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-fkfdww"><style data-emotion="css kevsq9">.css-kevsq9{margin:0;padding:0;color:currentColor;font-size:0.875rem;line-height:1.25rem;font-weight:600;}</style><h2 data-paste-element="CALLOUT_HEADING" data-paste-core-version="20.6.0" class="css-kevsq9">Info</h2><style data-emotion="css 8tmauh">.css-8tmauh{display:grid;grid-gap:0;word-break:break-word;}.css-8tmauh >:last-child{margin-bottom:0;}.css-8tmauh ul,.css-8tmauh ol{margin-top:-0.5rem;}</style><style data-emotion="css 1ircowi">.css-1ircowi{box-sizing:border-box;display:grid;grid-gap:0;word-break:break-word;}.css-1ircowi >:last-child{margin-bottom:0;}.css-1ircowi ul,.css-1ircowi ol{margin-top:-0.5rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1ircowi"><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">If <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Response.appendHeader</code> is called with the name of a header that already exists, that header will be converted from a string to an array, and the provided value will be concatenated to that array of values.</p></div></div></div></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o"><strong>Method Parameters</strong></p><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-161rs34"><div data-paste-element="TABLE_WRAPPER" data-paste-core-version="20.7.0" class="css-1pev1tl"><table data-paste-element="TABLE" data-paste-core-version="20.7.0" class="css-1yrg7uf"><thead data-paste-element="THEAD" data-paste-core-version="20.7.0" class="css-c08gur"><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Name</th><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Type</th><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Example</th></tr></thead><tbody data-paste-element="TBODY" data-paste-core-version="20.7.0" class="css-1u05hs8"><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal">key</td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">string</code></td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">'content-type'</code></td></tr><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal">value</td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">string | string[]</code></td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">'application/json'</code></td></tr></tbody></table></div></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o"><strong>Examples</strong></p><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-slcqjs"><div data-paste-element="CODE_BLOCK_WRAPPER" data-paste-core-version="20.7.0" class="css-1ft5k6i"><div data-paste-element="CODE_BLOCK" data-paste-core-version="20.7.0" class="css-1lrte93"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-ba3ttd"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><button data-paste-element="CODE_BLOCK_COPY_BUTTON" data-paste-core-version="20.7.0" type="button" tabindex="0" aria-describedby=":R16d9qclaatasm:" aria-busy="false" class="css-11aawc9"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="CopyIcon-:R6j76d9qclaatasm:"><path fill="currentColor" fill-rule="evenodd" d="M13.469 2.5c.63 0 1.15.48 1.212 1.094l.007.125-.001 1.593h1.407c.73 0 1.331.558 1.4 1.271l.006.136v9.375c0 .776-.63 1.406-1.406 1.406H6.719c-.777 0-1.407-.63-1.407-1.406v-1.407H3.719c-.631 0-1.15-.48-1.213-1.094L2.5 13.47v-9.75c0-.631.48-1.15 1.094-1.213L3.72 2.5h9.75zm2.625 3.75H6.719a.469.469 0 00-.469.469v9.375c0 .259.21.468.469.468h9.375c.259 0 .468-.21.468-.468V6.719a.469.469 0 00-.468-.469zm-2.625-2.813h-9.75a.281.281 0 00-.274.217l-.007.065v9.75c0 .133.092.244.216.274l.065.007 1.593-.001v-7.03c0-.731.558-1.332 1.271-1.4l.136-.006 7.031-.001V3.719a.281.281 0 00-.217-.274l-.064-.007z"></path></svg></span><span data-paste-element="BOX" data-paste-core-version="20.7.0" aria-live="polite" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1cbdvo6">Copy code block</span></span></span></span></button></div></div><div data-paste-element="CODE_BLOCK_CONTENT" data-paste-core-version="20.7.0" class="css-1yf26d7"><pre data-theme="github-dark" data-lang="javascript" style="color:white;font-family:'TwilioSansMono', Courier, monospace;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.5;font-size:1em;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-hyphens:none;-moz-hyphens:none;-ms-hyphens:none;hyphens:none;margin:0;overflow:auto;background:inherit;width:100%;padding-bottom:2rem" tabindex="0" class="css-1p78m0" data-ch="true"><div style="min-width:fit-content"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">1</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#79C0FF">exports</span><span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">handler</span> <span style="color:#FF7B72">=</span> <span style="color:#C9D1D9">(</span><span style="color:#FFA657">context</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">event</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">callback</span><span style="color:#C9D1D9">)</span> <span style="color:#FF7B72">=></span> <span style="color:#C9D1D9">{</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">2</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">const</span> <span style="color:#79C0FF">response</span> <span style="color:#FF7B72">= new</span> <span style="color:#C9D1D9">Twilio.</span><span style="color:#D2A8FF">Response</span><span style="color:#C9D1D9">();</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">3</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">response</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">4</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">appendHeader</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'content-type'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'application/json'</span><span style="color:#C9D1D9">)</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">5</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// You can append a multi-value header by passing a list of strings</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">6</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">appendHeader</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'yes'</span><span style="color:#C9D1D9">, [</span><span style="color:#A5D6FF">'no'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'maybe'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'so'</span><span style="color:#C9D1D9">])</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">7</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// Instead of setting the header to an array, it's also valid to</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">8</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// pass a comma-separated string of values</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">9</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">appendHeader</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'cache-control'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'no-store, max-age=0'</span><span style="color:#C9D1D9">);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">10</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">11</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">return</span> <span style="color:#D2A8FF">callback</span><span style="color:#C9D1D9">(</span><span style="color:#79C0FF">null</span><span style="color:#C9D1D9">, response);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">12</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#C9D1D9">};</span></div></div></div></div></pre></div></div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-slcqjs"><div data-paste-element="CODE_BLOCK_WRAPPER" data-paste-core-version="20.7.0" class="css-1ft5k6i"><div data-paste-element="CODE_BLOCK" data-paste-core-version="20.7.0" class="css-1lrte93"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-ba3ttd"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><button data-paste-element="CODE_BLOCK_COPY_BUTTON" data-paste-core-version="20.7.0" type="button" tabindex="0" aria-describedby=":R16da2claatasm:" aria-busy="false" class="css-11aawc9"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="CopyIcon-:R6j76da2claatasm:"><path fill="currentColor" fill-rule="evenodd" d="M13.469 2.5c.63 0 1.15.48 1.212 1.094l.007.125-.001 1.593h1.407c.73 0 1.331.558 1.4 1.271l.006.136v9.375c0 .776-.63 1.406-1.406 1.406H6.719c-.777 0-1.407-.63-1.407-1.406v-1.407H3.719c-.631 0-1.15-.48-1.213-1.094L2.5 13.47v-9.75c0-.631.48-1.15 1.094-1.213L3.72 2.5h9.75zm2.625 3.75H6.719a.469.469 0 00-.469.469v9.375c0 .259.21.468.469.468h9.375c.259 0 .468-.21.468-.468V6.719a.469.469 0 00-.468-.469zm-2.625-2.813h-9.75a.281.281 0 00-.274.217l-.007.065v9.75c0 .133.092.244.216.274l.065.007 1.593-.001v-7.03c0-.731.558-1.332 1.271-1.4l.136-.006 7.031-.001V3.719a.281.281 0 00-.217-.274l-.064-.007z"></path></svg></span><span data-paste-element="BOX" data-paste-core-version="20.7.0" aria-live="polite" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1cbdvo6">Copy code block</span></span></span></span></button></div></div><div data-paste-element="CODE_BLOCK_CONTENT" data-paste-core-version="20.7.0" class="css-1yf26d7"><pre data-theme="github-dark" data-lang="javascript" style="color:white;font-family:'TwilioSansMono', Courier, monospace;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.5;font-size:1em;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-hyphens:none;-moz-hyphens:none;-ms-hyphens:none;hyphens:none;margin:0;overflow:auto;background:inherit;width:100%;padding-bottom:2rem" tabindex="0" class="css-1p78m0" data-ch="true"><div style="min-width:fit-content"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">1</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#79C0FF">exports</span><span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">handler</span> <span style="color:#FF7B72">=</span> <span style="color:#C9D1D9">(</span><span style="color:#FFA657">context</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">event</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">callback</span><span style="color:#C9D1D9">)</span> <span style="color:#FF7B72">=></span> <span style="color:#C9D1D9">{</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">2</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">const</span> <span style="color:#79C0FF">response</span> <span style="color:#FF7B72">= new</span> <span style="color:#C9D1D9">Twilio.</span><span style="color:#D2A8FF">Response</span><span style="color:#C9D1D9">();</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">3</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">response</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">4</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">appendHeader</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'never'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'gonna'</span><span style="color:#C9D1D9">)</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">5</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// Appending a header that already exists will convert that header to</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">6</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// a multi-value header and concatenate the new value</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">7</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">appendHeader</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'never'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'give'</span><span style="color:#C9D1D9">)</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">8</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">appendHeader</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'never'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'you'</span><span style="color:#C9D1D9">)</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">9</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">appendHeader</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'never'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'up'</span><span style="color:#C9D1D9">);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">10</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#8B949E">// The header is now `'never': ['gonna', 'give', 'you', 'up']`</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">11</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">12</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">return</span> <span style="color:#D2A8FF">callback</span><span style="color:#C9D1D9">(</span><span style="color:#79C0FF">null</span><span style="color:#C9D1D9">, response);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">13</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#C9D1D9">};</span></div></div></div></div></pre></div></div></div></div></section> <section id="cookies-section-indexable"><hr data-paste-element="SEPARATOR" data-paste-core-version="20.7.0" aria-orientation="horizontal" class="css-1y5brhz"/><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-m8ey6p"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-gt12nx"><h2 data-paste-element="HEADING" data-paste-core-version="20.6.0" id="cookies" class="css-16k5vxt">Cookies</h2><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#cookies" class="css-f02h4i"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" fill="none" viewBox="0 0 20 20" aria-labelledby="LinkIcon-:Rakqaslaatasm:"><title id="LinkIcon-:Rakqaslaatasm:">cookies page anchor</title><path fill="currentColor" d="M13.074 5.674a2.3 2.3 0 013.252 3.252l-2.97 2.97A2.3 2.3 0 019.869 8.92a.5.5 0 10-.808-.588 3.3 3.3 0 005.004 4.272l2.97-2.97a3.3 3.3 0 00-4.667-4.666l-.467.466a.5.5 0 10.707.707l.467-.466z"></path><path fill="currentColor" d="M9.18 7.163a2.3 2.3 0 011.952 3.65.5.5 0 10.809.59A3.3 3.3 0 006.936 7.13l-2.97 2.97a3.3 3.3 0 004.667 4.667l.58-.58a.5.5 0 10-.707-.707l-.58.58a2.3 2.3 0 11-3.252-3.252l2.97-2.97c.409-.41.958-.652 1.536-.675z"></path></svg></span></a></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1kam78h"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-knmi57"><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsUpIcon-:R2cqlaaslaatasm:"><title id="ThumbsUpIcon-:R2cqlaaslaatasm:">Positive Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M6.5 7.45c.194-.216.406-.451.628-.707.799-.922 1.608-1.972 1.898-2.838.314-.938 1.139-1.487 1.966-1.395a1.57 1.57 0 011.085.621c.277.363.423.85.423 1.43 0 .327-.081.645-.174.924-.062.186-.139.383-.208.56l-.088.226c-.092.245-.15.432-.166.582-.014.134.01.19.033.222l.001.001a.415.415 0 00.1.058 1.9 1.9 0 00.371.11c.32.068.725.106 1.152.124.632.026 1.237.01 1.634-.002.147-.004.265-.008.345-.008.25 0 .731.008 1.158.218.224.11.443.28.603.537.159.256.239.567.239.924 0 1.218-.524 3.647-1.553 5.695-.31.616-.693.885-1.18 1.193-.574.364-1.145.575-1.767.575h-3c-1.116 0-2.204-.418-3.002-.883a6.393 6.393 0 01-.498-.322v.372a.5.5 0 01-.5.5H3a.5.5 0 01-.5-.5V7a.5.5 0 01.5-.5h3a.5.5 0 01.5.5v.45zm3.474-3.228c.186-.554.611-.751.909-.718a.57.57 0 01.399.233c.114.15.218.409.218.824 0 .17-.044.37-.123.61a9.287 9.287 0 01-.177.474c-.034.087-.07.177-.105.273-.095.252-.194.542-.225.827-.032.297.005.636.23.935.135.178.322.291.491.367.175.078.372.134.571.176.4.084.869.125 1.317.144.676.028 1.382.008 1.767-.003.118-.003.206-.006.254-.006.25 0 .519.018.717.115.088.044.15.098.194.168.044.07.089.19.089.396 0 1.04-.476 3.316-1.447 5.246-.184.367-.375.516-.82.797-.468.296-.855.42-1.233.42h-3c-.884 0-1.796-.338-2.498-.747a4.464 4.464 0 01-.813-.591 1.36 1.36 0 01-.184-.207l-.005-.008V8.968a7.331 7.331 0 01.329-.39l.308-.343c.223-.246.483-.534.746-.837.788-.909 1.73-2.097 2.091-3.176zM5.5 7.5h-2v7.667h2V7.5z"></path></svg></span></span></button><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsDownIcon-:R2dalaaslaatasm:"><title id="ThumbsDownIcon-:R2dalaaslaatasm:">Negative Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M13.5 12.55c-.194.215-.406.451-.628.707-.799.921-1.608 1.972-1.898 2.838-.314.938-1.139 1.487-1.966 1.395a1.57 1.57 0 01-1.085-.621c-.277-.363-.423-.85-.423-1.43 0-.327.081-.645.174-.924.062-.186.139-.383.208-.56l.088-.226c.092-.245.15-.432.166-.582.014-.134-.01-.19-.033-.222l-.001-.001a.416.416 0 00-.1-.058 1.902 1.902 0 00-.371-.11 7.35 7.35 0 00-1.152-.124 22.958 22.958 0 00-1.634.002 14.2 14.2 0 01-.345.008c-.25 0-.731-.008-1.158-.218a1.451 1.451 0 01-.603-.537c-.159-.257-.239-.567-.239-.924 0-1.218.524-3.648 1.553-5.696.31-.616.693-.884 1.18-1.192C5.807 3.71 6.378 3.5 7 3.5h3c1.116 0 2.204.417 3.002.883.178.104.345.212.498.321v-.37a.5.5 0 01.5-.5h3a.5.5 0 01.5.5V13a.5.5 0 01-.5.5h-3a.5.5 0 01-.5-.5v-.45zm-3.474 3.227c-.186.554-.611.752-.909.72a.571.571 0 01-.399-.234c-.114-.15-.218-.409-.218-.824a2 2 0 01.123-.61c.054-.16.113-.312.177-.475.034-.086.07-.176.105-.272.095-.252.194-.542.225-.828.032-.296-.005-.635-.23-.934a1.23 1.23 0 00-.491-.367 2.874 2.874 0 00-.571-.176 8.31 8.31 0 00-1.317-.144c-.676-.029-1.381-.008-1.767.003-.118.003-.206.006-.254.006-.25 0-.519-.018-.717-.115a.452.452 0 01-.194-.168c-.044-.07-.089-.19-.089-.396 0-1.04.476-3.316 1.447-5.247.184-.366.375-.515.82-.796.468-.296.855-.42 1.233-.42h3c.884 0 1.796.337 2.498.747.349.203.628.414.813.59.093.09.152.16.184.208l.005.007v4.98a7.245 7.245 0 01-.329.39 54.1 54.1 0 01-.308.342c-.223.247-.483.534-.746.838-.788.909-1.73 2.096-2.091 3.175zM14.5 12.5h2V4.833h-2V12.5z"></path></svg></span></span></button></div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-rj5eb"><div data-paste-element="CALLOUT" data-paste-core-version="20.7.0" class="css-1v816ix"><div data-paste-element="CALLOUT_ICON" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-1cst9vu"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="NeutralIcon-:R1jaislaatasm:"><path fill="currentColor" fill-rule="evenodd" d="M10 2a8 8 0 110 16 8 8 0 010-16zm0 7c-.26.01-.528.08-.707.24-.178.158-.292.355-.292.575v3.37c0 .21.11.428.292.577.173.14.457.247.707.237.26-.008.528-.078.707-.237.178-.16.292-.355.292-.577v-3.37a.766.766 0 00-.292-.575A1.14 1.14 0 0010 9zm0-3l-.266.036c-.17.047-.318.131-.441.253l-.156.198A.958.958 0 009 6.98v.04a.728.728 0 00.086.378c.04.121.108.227.206.315.09.094.197.163.321.202.12.06.248.09.386.084l.266-.035c.17-.047.318-.131.441-.253l.156-.198A.958.958 0 0011 7.02v-.04a.728.728 0 00-.086-.378.721.721 0 00-.206-.315.757.757 0 00-.321-.202.767.767 0 00-.386-.084z"></path></svg></span><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1cbdvo6">(information)</span></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-fkfdww"><h2 data-paste-element="CALLOUT_HEADING" data-paste-core-version="20.6.0" class="css-kevsq9">Info</h2><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1ircowi"><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">Commands to set, modify, and delete cookies are only available when your Function is running <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">@twilio/runtime-handler</code> version <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">1.2.0</code> or later. Consult the <a data-paste-element="ANCHOR" data-paste-core-version="20.7.0" href="/docs/serverless/functions-assets/handler" title="Runtime Handler guide" class="css-lpeit6">Runtime Handler guide</a> to learn more about the latest version and how to update.</p></div></div></div></div></section> <section id="setcookie-section-indexable"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-m8ey6p"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-a8lapc"><h3 data-paste-element="HEADING" data-paste-core-version="20.6.0" id="setcookie" class="css-yftbgj"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">setCookie(key, value, attributes?)</code></h3><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#setcookie" class="css-f02h4i"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" fill="none" viewBox="0 0 20 20" aria-labelledby="LinkIcon-:R1aj8bclaatasm:"><title id="LinkIcon-:R1aj8bclaatasm:">setcookie page anchor</title><path fill="currentColor" d="M13.074 5.674a2.3 2.3 0 013.252 3.252l-2.97 2.97A2.3 2.3 0 019.869 8.92a.5.5 0 10-.808-.588 3.3 3.3 0 005.004 4.272l2.97-2.97a3.3 3.3 0 00-4.667-4.666l-.467.466a.5.5 0 10.707.707l.467-.466z"></path><path fill="currentColor" d="M9.18 7.163a2.3 2.3 0 011.952 3.65.5.5 0 10.809.59A3.3 3.3 0 006.936 7.13l-2.97 2.97a3.3 3.3 0 004.667 4.667l.58-.58a.5.5 0 10-.707-.707l-.58.58a2.3 2.3 0 11-3.252-3.252l2.97-2.97c.409-.41.958-.652 1.536-.675z"></path></svg></span></a></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1kam78h"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-knmi57"><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsUpIcon-:R9jal8bclaatasm:"><title id="ThumbsUpIcon-:R9jal8bclaatasm:">Positive Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M6.5 7.45c.194-.216.406-.451.628-.707.799-.922 1.608-1.972 1.898-2.838.314-.938 1.139-1.487 1.966-1.395a1.57 1.57 0 011.085.621c.277.363.423.85.423 1.43 0 .327-.081.645-.174.924-.062.186-.139.383-.208.56l-.088.226c-.092.245-.15.432-.166.582-.014.134.01.19.033.222l.001.001a.415.415 0 00.1.058 1.9 1.9 0 00.371.11c.32.068.725.106 1.152.124.632.026 1.237.01 1.634-.002.147-.004.265-.008.345-.008.25 0 .731.008 1.158.218.224.11.443.28.603.537.159.256.239.567.239.924 0 1.218-.524 3.647-1.553 5.695-.31.616-.693.885-1.18 1.193-.574.364-1.145.575-1.767.575h-3c-1.116 0-2.204-.418-3.002-.883a6.393 6.393 0 01-.498-.322v.372a.5.5 0 01-.5.5H3a.5.5 0 01-.5-.5V7a.5.5 0 01.5-.5h3a.5.5 0 01.5.5v.45zm3.474-3.228c.186-.554.611-.751.909-.718a.57.57 0 01.399.233c.114.15.218.409.218.824 0 .17-.044.37-.123.61a9.287 9.287 0 01-.177.474c-.034.087-.07.177-.105.273-.095.252-.194.542-.225.827-.032.297.005.636.23.935.135.178.322.291.491.367.175.078.372.134.571.176.4.084.869.125 1.317.144.676.028 1.382.008 1.767-.003.118-.003.206-.006.254-.006.25 0 .519.018.717.115.088.044.15.098.194.168.044.07.089.19.089.396 0 1.04-.476 3.316-1.447 5.246-.184.367-.375.516-.82.797-.468.296-.855.42-1.233.42h-3c-.884 0-1.796-.338-2.498-.747a4.464 4.464 0 01-.813-.591 1.36 1.36 0 01-.184-.207l-.005-.008V8.968a7.331 7.331 0 01.329-.39l.308-.343c.223-.246.483-.534.746-.837.788-.909 1.73-2.097 2.091-3.176zM5.5 7.5h-2v7.667h2V7.5z"></path></svg></span></span></button><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsDownIcon-:R9lal8bclaatasm:"><title id="ThumbsDownIcon-:R9lal8bclaatasm:">Negative Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M13.5 12.55c-.194.215-.406.451-.628.707-.799.921-1.608 1.972-1.898 2.838-.314.938-1.139 1.487-1.966 1.395a1.57 1.57 0 01-1.085-.621c-.277-.363-.423-.85-.423-1.43 0-.327.081-.645.174-.924.062-.186.139-.383.208-.56l.088-.226c.092-.245.15-.432.166-.582.014-.134-.01-.19-.033-.222l-.001-.001a.416.416 0 00-.1-.058 1.902 1.902 0 00-.371-.11 7.35 7.35 0 00-1.152-.124 22.958 22.958 0 00-1.634.002 14.2 14.2 0 01-.345.008c-.25 0-.731-.008-1.158-.218a1.451 1.451 0 01-.603-.537c-.159-.257-.239-.567-.239-.924 0-1.218.524-3.648 1.553-5.696.31-.616.693-.884 1.18-1.192C5.807 3.71 6.378 3.5 7 3.5h3c1.116 0 2.204.417 3.002.883.178.104.345.212.498.321v-.37a.5.5 0 01.5-.5h3a.5.5 0 01.5.5V13a.5.5 0 01-.5.5h-3a.5.5 0 01-.5-.5v-.45zm-3.474 3.227c-.186.554-.611.752-.909.72a.571.571 0 01-.399-.234c-.114-.15-.218-.409-.218-.824a2 2 0 01.123-.61c.054-.16.113-.312.177-.475.034-.086.07-.176.105-.272.095-.252.194-.542.225-.828.032-.296-.005-.635-.23-.934a1.23 1.23 0 00-.491-.367 2.874 2.874 0 00-.571-.176 8.31 8.31 0 00-1.317-.144c-.676-.029-1.381-.008-1.767.003-.118.003-.206.006-.254.006-.25 0-.519-.018-.717-.115a.452.452 0 01-.194-.168c-.044-.07-.089-.19-.089-.396 0-1.04.476-3.316 1.447-5.247.184-.366.375-.515.82-.796.468-.296.855-.42 1.233-.42h3c.884 0 1.796.337 2.498.747.349.203.628.414.813.59.093.09.152.16.184.208l.005.007v4.98a7.245 7.245 0 01-.329.39 54.1 54.1 0 01-.308.342c-.223.247-.483.534-.746.838-.788.909-1.73 2.096-2.091 3.175zM14.5 12.5h2V4.833h-2V12.5z"></path></svg></span></span></button></div></div></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">This method allows you to add a cookie to your Function's response. It accepts the name of the cookie, its value, and any optional attributes to be assigned to the cookie.</p><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o"><strong>Method Parameters</strong></p><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-161rs34"><div data-paste-element="TABLE_WRAPPER" data-paste-core-version="20.7.0" class="css-1pev1tl"><table data-paste-element="TABLE" data-paste-core-version="20.7.0" class="css-1yrg7uf"><thead data-paste-element="THEAD" data-paste-core-version="20.7.0" class="css-c08gur"><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Name</th><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Type</th><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Example</th></tr></thead><tbody data-paste-element="TBODY" data-paste-core-version="20.7.0" class="css-1u05hs8"><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal">key</td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">string</code></td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">'tz'</code></td></tr><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal">value</td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">string | string[]</code></td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">'America/Los_Angeles'</code></td></tr><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal">attributes (optional)</td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">string[]?</code></td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">['HttpOnly', 'Secure', 'SameSite=Strict', 'Max-Age=86400']</code></td></tr></tbody></table></div></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o"><strong>Examples</strong></p><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-slcqjs"><div data-paste-element="CODE_BLOCK_WRAPPER" data-paste-core-version="20.7.0" class="css-1ft5k6i"><div data-paste-element="CODE_BLOCK" data-paste-core-version="20.7.0" class="css-1lrte93"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-ba3ttd"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><button data-paste-element="CODE_BLOCK_COPY_BUTTON" data-paste-core-version="20.7.0" type="button" tabindex="0" aria-describedby=":R16d9jclaatasm:" aria-busy="false" class="css-11aawc9"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="CopyIcon-:R6j76d9jclaatasm:"><path fill="currentColor" fill-rule="evenodd" d="M13.469 2.5c.63 0 1.15.48 1.212 1.094l.007.125-.001 1.593h1.407c.73 0 1.331.558 1.4 1.271l.006.136v9.375c0 .776-.63 1.406-1.406 1.406H6.719c-.777 0-1.407-.63-1.407-1.406v-1.407H3.719c-.631 0-1.15-.48-1.213-1.094L2.5 13.47v-9.75c0-.631.48-1.15 1.094-1.213L3.72 2.5h9.75zm2.625 3.75H6.719a.469.469 0 00-.469.469v9.375c0 .259.21.468.469.468h9.375c.259 0 .468-.21.468-.468V6.719a.469.469 0 00-.468-.469zm-2.625-2.813h-9.75a.281.281 0 00-.274.217l-.007.065v9.75c0 .133.092.244.216.274l.065.007 1.593-.001v-7.03c0-.731.558-1.332 1.271-1.4l.136-.006 7.031-.001V3.719a.281.281 0 00-.217-.274l-.064-.007z"></path></svg></span><span data-paste-element="BOX" data-paste-core-version="20.7.0" aria-live="polite" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1cbdvo6">Copy code block</span></span></span></span></button></div></div><div data-paste-element="CODE_BLOCK_CONTENT" data-paste-core-version="20.7.0" class="css-1yf26d7"><pre data-theme="github-dark" data-lang="javascript" style="color:white;font-family:'TwilioSansMono', Courier, monospace;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.5;font-size:1em;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-hyphens:none;-moz-hyphens:none;-ms-hyphens:none;hyphens:none;margin:0;overflow:auto;background:inherit;width:100%;padding-bottom:2rem" tabindex="0" class="css-1p78m0" data-ch="true"><div style="min-width:fit-content"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">1</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#79C0FF">exports</span><span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">handler</span> <span style="color:#FF7B72">=</span> <span style="color:#C9D1D9">(</span><span style="color:#FFA657">context</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">event</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">callback</span><span style="color:#C9D1D9">)</span> <span style="color:#FF7B72">=></span> <span style="color:#C9D1D9">{</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">2</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">const</span> <span style="color:#79C0FF">response</span> <span style="color:#FF7B72">= new</span> <span style="color:#C9D1D9">Twilio.</span><span style="color:#D2A8FF">Response</span><span style="color:#C9D1D9">();</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">3</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">response</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">4</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">setCookie</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'has_recent_activity'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'true'</span><span style="color:#C9D1D9">)</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">5</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">setCookie</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'tz'</span><span style="color:#C9D1D9">,</span> <span style="color:#A5D6FF">'America/Los_Angeles'</span><span style="color:#C9D1D9">, [</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">6</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#A5D6FF">'HttpOnly'</span><span style="color:#C9D1D9">,</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">7</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#A5D6FF">'Secure'</span><span style="color:#C9D1D9">,</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">8</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#A5D6FF">'SameSite=Strict'</span><span style="color:#C9D1D9">,</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">9</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#A5D6FF">'Max-Age=86400'</span><span style="color:#C9D1D9">,</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">10</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">]);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">11</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">12</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">return</span> <span style="color:#D2A8FF">callback</span><span style="color:#C9D1D9">(</span><span style="color:#79C0FF">null</span><span style="color:#C9D1D9">, response);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1m136ci">13</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#C9D1D9">};</span></div></div></div></div></pre></div></div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-rj5eb"><div data-paste-element="CALLOUT" data-paste-core-version="20.7.0" class="css-1v816ix"><div data-paste-element="CALLOUT_ICON" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-1cst9vu"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="NeutralIcon-:R6d9rclaatasm:"><path fill="currentColor" fill-rule="evenodd" d="M10 2a8 8 0 110 16 8 8 0 010-16zm0 7c-.26.01-.528.08-.707.24-.178.158-.292.355-.292.575v3.37c0 .21.11.428.292.577.173.14.457.247.707.237.26-.008.528-.078.707-.237.178-.16.292-.355.292-.577v-3.37a.766.766 0 00-.292-.575A1.14 1.14 0 0010 9zm0-3l-.266.036c-.17.047-.318.131-.441.253l-.156.198A.958.958 0 009 6.98v.04a.728.728 0 00.086.378c.04.121.108.227.206.315.09.094.197.163.321.202.12.06.248.09.386.084l.266-.035c.17-.047.318-.131.441-.253l.156-.198A.958.958 0 0011 7.02v-.04a.728.728 0 00-.086-.378.721.721 0 00-.206-.315.757.757 0 00-.321-.202.767.767 0 00-.386-.084z"></path></svg></span><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1cbdvo6">(information)</span></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-fkfdww"><h2 data-paste-element="CALLOUT_HEADING" data-paste-core-version="20.6.0" class="css-kevsq9">Info</h2><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1ircowi"><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">Cookie attributes such as <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">HttpOnly</code> and <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Secure</code> are shown in these examples, however, you don't need to add them yourself. Runtime automatically adds the <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">HttpOnly</code> and <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Secure</code> attributes to your cookies by default unless you have already manually set those values.</p><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">If you do not set a <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Max-Age</code> or <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Expires</code> on a cookie, it will be considered a <a data-paste-element="ANCHOR" data-paste-core-version="20.7.0" href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#define_the_lifetime_of_a_cookie" rel="noreferrer noopener" target="_blank" title="Session cookie" class="css-lpeit6"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj">Session cookie<style data-emotion="css 1ezs782">.css-1ezs782{box-sizing:border-box;display:inline-block;-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;vertical-align:middle;}</style><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1ezs782"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="LinkExternalIcon-:Rakqlal9rclaatasm:"><title id="LinkExternalIcon-:Rakqlal9rclaatasm:">(link takes you to an external page)</title><path fill="currentColor" fill-rule="evenodd" d="M8.4 4.5a.5.5 0 01.5.5v.1a.5.5 0 01-.5.5H5.6v8.8h8.8v-2.8a.5.5 0 01.41-.492l.09-.008h.1a.5.5 0 01.492.41l.008.09V15a.5.5 0 01-.41.492L15 15.5H5a.5.5 0 01-.492-.41L4.5 15V5a.5.5 0 01.41-.492L5 4.5h3.4zm6.6 0a.5.5 0 01.5.5v.1l-.001.01.001 3.29a.5.5 0 01-.5.5h-.1a.5.5 0 01-.5-.5l-.001-1.935-3.967 3.967a.611.611 0 01-.78.07l-.084-.07a.611.611 0 01-.07-.78l.07-.084L13.534 5.6H11.6a.5.5 0 01-.5-.5V5a.5.5 0 01.5-.5H15z"></path></svg></span></span></span></a>. If you set both <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Max-Age</code> and <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Expires</code> on a cookie, <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Max-Age</code> takes precedence.</p></div></div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-rj5eb"><style data-emotion="css 101yoii">.css-101yoii{box-sizing:border-box;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;padding:1.5rem;border-left-style:solid;border-left-width:2px;-webkit-align-items:start;-webkit-box-align:start;-ms-flex-align:start;align-items:start;-webkit-column-gap:1rem;column-gap:1rem;background-color:rgb(254, 245, 245);color:rgb(199, 35, 35);border-color:rgb(245, 138, 138);}</style><div data-paste-element="CALLOUT" data-paste-core-version="20.7.0" class="css-101yoii"><div data-paste-element="CALLOUT_ICON" data-paste-core-version="20.7.0" class="css-roynbj"><style data-emotion="css 1qtt8n1">.css-1qtt8n1{box-sizing:border-box;line-height:0;display:block;color:rgb(199, 35, 35);width:1.25rem;height:1.25rem;-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;}</style><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-1qtt8n1"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="ErrorIcon-:R6da3claatasm:"><path fill="currentColor" fill-rule="evenodd" d="M11.247 2.517l6.236 6.236a1.764 1.764 0 010 2.494l-6.236 6.236a1.764 1.764 0 01-2.494 0l-6.236-6.236a1.764 1.764 0 010-2.494l6.236-6.236a1.764 1.764 0 012.494 0zM10 12a1 1 0 100 2 1 1 0 000-2zm.01-5h-.02c-.604 0-1.073.592-.978 1.244l.428 2.238c.04.296.278.518.557.518h.006c.279 0 .516-.222.557-.518l.428-2.238c.095-.652-.367-1.237-.978-1.244z"></path></svg></span><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1cbdvo6">(error)</span></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-fkfdww"><h2 data-paste-element="CALLOUT_HEADING" data-paste-core-version="20.6.0" class="css-kevsq9">Danger</h2><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1ircowi"><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">If you set the <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Max-Age</code> or <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Expires</code> of a cookie to greater than 24 hours, your Function will return a <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">400</code> error: <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Cookies max-age cannot be greater than a day</code>.</p></div></div></div></div></section> <section id="removecookie-section-indexable"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-m8ey6p"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-a8lapc"><h3 data-paste-element="HEADING" data-paste-core-version="20.6.0" id="removecookie" class="css-yftbgj"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">removeCookie(key)</code></h3><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#removecookie" class="css-f02h4i"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" fill="none" viewBox="0 0 20 20" aria-labelledby="LinkIcon-:Rakqbslaatasm:"><title id="LinkIcon-:Rakqbslaatasm:">removecookie page anchor</title><path fill="currentColor" d="M13.074 5.674a2.3 2.3 0 013.252 3.252l-2.97 2.97A2.3 2.3 0 019.869 8.92a.5.5 0 10-.808-.588 3.3 3.3 0 005.004 4.272l2.97-2.97a3.3 3.3 0 00-4.667-4.666l-.467.466a.5.5 0 10.707.707l.467-.466z"></path><path fill="currentColor" d="M9.18 7.163a2.3 2.3 0 011.952 3.65.5.5 0 10.809.59A3.3 3.3 0 006.936 7.13l-2.97 2.97a3.3 3.3 0 004.667 4.667l.58-.58a.5.5 0 10-.707-.707l-.58.58a2.3 2.3 0 11-3.252-3.252l2.97-2.97c.409-.41.958-.652 1.536-.675z"></path></svg></span></a></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1kam78h"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-knmi57"><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsUpIcon-:R2cqlabslaatasm:"><title id="ThumbsUpIcon-:R2cqlabslaatasm:">Positive Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M6.5 7.45c.194-.216.406-.451.628-.707.799-.922 1.608-1.972 1.898-2.838.314-.938 1.139-1.487 1.966-1.395a1.57 1.57 0 011.085.621c.277.363.423.85.423 1.43 0 .327-.081.645-.174.924-.062.186-.139.383-.208.56l-.088.226c-.092.245-.15.432-.166.582-.014.134.01.19.033.222l.001.001a.415.415 0 00.1.058 1.9 1.9 0 00.371.11c.32.068.725.106 1.152.124.632.026 1.237.01 1.634-.002.147-.004.265-.008.345-.008.25 0 .731.008 1.158.218.224.11.443.28.603.537.159.256.239.567.239.924 0 1.218-.524 3.647-1.553 5.695-.31.616-.693.885-1.18 1.193-.574.364-1.145.575-1.767.575h-3c-1.116 0-2.204-.418-3.002-.883a6.393 6.393 0 01-.498-.322v.372a.5.5 0 01-.5.5H3a.5.5 0 01-.5-.5V7a.5.5 0 01.5-.5h3a.5.5 0 01.5.5v.45zm3.474-3.228c.186-.554.611-.751.909-.718a.57.57 0 01.399.233c.114.15.218.409.218.824 0 .17-.044.37-.123.61a9.287 9.287 0 01-.177.474c-.034.087-.07.177-.105.273-.095.252-.194.542-.225.827-.032.297.005.636.23.935.135.178.322.291.491.367.175.078.372.134.571.176.4.084.869.125 1.317.144.676.028 1.382.008 1.767-.003.118-.003.206-.006.254-.006.25 0 .519.018.717.115.088.044.15.098.194.168.044.07.089.19.089.396 0 1.04-.476 3.316-1.447 5.246-.184.367-.375.516-.82.797-.468.296-.855.42-1.233.42h-3c-.884 0-1.796-.338-2.498-.747a4.464 4.464 0 01-.813-.591 1.36 1.36 0 01-.184-.207l-.005-.008V8.968a7.331 7.331 0 01.329-.39l.308-.343c.223-.246.483-.534.746-.837.788-.909 1.73-2.097 2.091-3.176zM5.5 7.5h-2v7.667h2V7.5z"></path></svg></span></span></button><button data-paste-element="BUTTON" data-paste-core-version="20.7.0" aria-pressed="false" type="button" aria-busy="false" class="css-1b15v5e"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" width="100%" height="100%" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" aria-labelledby="ThumbsDownIcon-:R2dalabslaatasm:"><title id="ThumbsDownIcon-:R2dalabslaatasm:">Negative Feedback</title><path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" d="M13.5 12.55c-.194.215-.406.451-.628.707-.799.921-1.608 1.972-1.898 2.838-.314.938-1.139 1.487-1.966 1.395a1.57 1.57 0 01-1.085-.621c-.277-.363-.423-.85-.423-1.43 0-.327.081-.645.174-.924.062-.186.139-.383.208-.56l.088-.226c.092-.245.15-.432.166-.582.014-.134-.01-.19-.033-.222l-.001-.001a.416.416 0 00-.1-.058 1.902 1.902 0 00-.371-.11 7.35 7.35 0 00-1.152-.124 22.958 22.958 0 00-1.634.002 14.2 14.2 0 01-.345.008c-.25 0-.731-.008-1.158-.218a1.451 1.451 0 01-.603-.537c-.159-.257-.239-.567-.239-.924 0-1.218.524-3.648 1.553-5.696.31-.616.693-.884 1.18-1.192C5.807 3.71 6.378 3.5 7 3.5h3c1.116 0 2.204.417 3.002.883.178.104.345.212.498.321v-.37a.5.5 0 01.5-.5h3a.5.5 0 01.5.5V13a.5.5 0 01-.5.5h-3a.5.5 0 01-.5-.5v-.45zm-3.474 3.227c-.186.554-.611.752-.909.72a.571.571 0 01-.399-.234c-.114-.15-.218-.409-.218-.824a2 2 0 01.123-.61c.054-.16.113-.312.177-.475.034-.086.07-.176.105-.272.095-.252.194-.542.225-.828.032-.296-.005-.635-.23-.934a1.23 1.23 0 00-.491-.367 2.874 2.874 0 00-.571-.176 8.31 8.31 0 00-1.317-.144c-.676-.029-1.381-.008-1.767.003-.118.003-.206.006-.254.006-.25 0-.519-.018-.717-.115a.452.452 0 01-.194-.168c-.044-.07-.089-.19-.089-.396 0-1.04.476-3.316 1.447-5.247.184-.366.375-.515.82-.796.468-.296.855-.42 1.233-.42h3c.884 0 1.796.337 2.498.747.349.203.628.414.813.59.093.09.152.16.184.208l.005.007v4.98a7.245 7.245 0 01-.329.39 54.1 54.1 0 01-.308.342c-.223.247-.483.534-.746.838-.788.909-1.73 2.096-2.091 3.175zM14.5 12.5h2V4.833h-2V12.5z"></path></svg></span></span></button></div></div></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">This method allows you to effectively remove a specific cookie from the response of your Twilio Function. It accepts the name of the cookie to be removed, and sets the <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">Max-Age</code> attribute of the cookie equal to 0 so that clients and browsers will remove the cookie upon receiving the response.</p></section> <section id="method-parameters-section"><style data-emotion="css 104sreq">.css-104sreq{box-sizing:border-box;-webkit-align-items:start;-webkit-box-align:start;-ms-flex-align:start;align-items:start;margin-bottom:0.75rem;}</style><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-104sreq"><style data-emotion="css 3y2hwy">.css-3y2hwy{margin:0;padding:0;color:rgb(18, 28, 45);font-size:1rem;line-height:1.5rem;margin-bottom:0.5rem;font-weight:600;letter-spacing:-.02em;display:inline;}</style><h4 data-paste-element="HEADING" data-paste-core-version="20.6.0" id="method-parameters" class="css-3y2hwy">Method Parameters</h4><style data-emotion="css 138wi13">.css-138wi13{box-sizing:border-box;-webkit-text-decoration:none;text-decoration:none;margin-left:0.5rem;color:rgb(96, 107, 133);border-radius:2px;outline:none;display:inline-block;vertical-align:text-bottom;}.css-138wi13:hover{color:rgb(3, 11, 93);}.css-138wi13:focus{box-shadow:0 0 0 2px #ffffff,0 0 0 3px #006dfa,0 0 0 5px #cce4ff;color:rgb(3, 11, 93);}</style><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#method-parameters" class="css-138wi13"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" fill="none" viewBox="0 0 20 20" aria-labelledby="LinkIcon-:R1acclaatasm:"><title id="LinkIcon-:R1acclaatasm:">method-parameters page anchor</title><path fill="currentColor" d="M13.074 5.674a2.3 2.3 0 013.252 3.252l-2.97 2.97A2.3 2.3 0 019.869 8.92a.5.5 0 10-.808-.588 3.3 3.3 0 005.004 4.272l2.97-2.97a3.3 3.3 0 00-4.667-4.666l-.467.466a.5.5 0 10.707.707l.467-.466z"></path><path fill="currentColor" d="M9.18 7.163a2.3 2.3 0 011.952 3.65.5.5 0 10.809.59A3.3 3.3 0 006.936 7.13l-2.97 2.97a3.3 3.3 0 004.667 4.667l.58-.58a.5.5 0 10-.707-.707l-.58.58a2.3 2.3 0 11-3.252-3.252l2.97-2.97c.409-.41.958-.652 1.536-.675z"></path></svg></span></a></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-161rs34"><div data-paste-element="TABLE_WRAPPER" data-paste-core-version="20.7.0" class="css-1pev1tl"><table data-paste-element="TABLE" data-paste-core-version="20.7.0" class="css-1yrg7uf"><thead data-paste-element="THEAD" data-paste-core-version="20.7.0" class="css-c08gur"><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Name</th><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Type</th><th data-paste-element="TH" data-paste-core-version="20.7.0" class="css-kczchh">Example</th></tr></thead><tbody data-paste-element="TBODY" data-paste-core-version="20.7.0" class="css-1u05hs8"><tr data-paste-element="TR" data-paste-core-version="20.7.0" class="css-1e22c8r"><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal">key</td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">string</code></td><td data-paste-element="TD" data-paste-core-version="20.7.0" class="css-4rjmal"><code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">'tz'</code></td></tr></tbody></table></div></div></section> <section id="examples-section"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-104sreq"><h4 data-paste-element="HEADING" data-paste-core-version="20.6.0" id="examples" class="css-3y2hwy">Examples</h4><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#examples" class="css-138wi13"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" fill="none" viewBox="0 0 20 20" aria-labelledby="LinkIcon-:R1acslaatasm:"><title id="LinkIcon-:R1acslaatasm:">examples page anchor</title><path fill="currentColor" d="M13.074 5.674a2.3 2.3 0 013.252 3.252l-2.97 2.97A2.3 2.3 0 019.869 8.92a.5.5 0 10-.808-.588 3.3 3.3 0 005.004 4.272l2.97-2.97a3.3 3.3 0 00-4.667-4.666l-.467.466a.5.5 0 10.707.707l.467-.466z"></path><path fill="currentColor" d="M9.18 7.163a2.3 2.3 0 011.952 3.65.5.5 0 10.809.59A3.3 3.3 0 006.936 7.13l-2.97 2.97a3.3 3.3 0 004.667 4.667l.58-.58a.5.5 0 10-.707-.707l-.58.58a2.3 2.3 0 11-3.252-3.252l2.97-2.97c.409-.41.958-.652 1.536-.675z"></path></svg></span></a></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">In the following example, the client may contain a cookie <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">tz</code> and send it along with the request. Upon receiving this response from your Function, <code data-paste-element="INLINE_CODE" data-paste-core-version="20.7.0" class="css-1kwd7zr">tz</code> will be removed from the client's cookie store and not sent with subsequent requests to your Function's domain.</p><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-slcqjs"><div data-paste-element="CODE_BLOCK_WRAPPER" data-paste-core-version="20.7.0" class="css-1ft5k6i"><div data-paste-element="CODE_BLOCK" data-paste-core-version="20.7.0" class="css-1lrte93"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-ba3ttd"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><button data-paste-element="CODE_BLOCK_COPY_BUTTON" data-paste-core-version="20.7.0" type="button" tabindex="0" aria-describedby=":R9jasslaatasm:" aria-busy="false" class="css-11aawc9"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1lgr57j"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 20 20" aria-labelledby="CopyIcon-:R1kppjasslaatasm:"><path fill="currentColor" fill-rule="evenodd" d="M13.469 2.5c.63 0 1.15.48 1.212 1.094l.007.125-.001 1.593h1.407c.73 0 1.331.558 1.4 1.271l.006.136v9.375c0 .776-.63 1.406-1.406 1.406H6.719c-.777 0-1.407-.63-1.407-1.406v-1.407H3.719c-.631 0-1.15-.48-1.213-1.094L2.5 13.47v-9.75c0-.631.48-1.15 1.094-1.213L3.72 2.5h9.75zm2.625 3.75H6.719a.469.469 0 00-.469.469v9.375c0 .259.21.468.469.468h9.375c.259 0 .468-.21.468-.468V6.719a.469.469 0 00-.468-.469zm-2.625-2.813h-9.75a.281.281 0 00-.274.217l-.007.065v9.75c0 .133.092.244.216.274l.065.007 1.593-.001v-7.03c0-.731.558-1.332 1.271-1.4l.136-.006 7.031-.001V3.719a.281.281 0 00-.217-.274l-.064-.007z"></path></svg></span><span data-paste-element="BOX" data-paste-core-version="20.7.0" aria-live="polite" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-1cbdvo6">Copy code block</span></span></span></span></button></div></div><div data-paste-element="CODE_BLOCK_CONTENT" data-paste-core-version="20.7.0" class="css-1yf26d7"><pre data-theme="github-dark" data-lang="javascript" style="color:white;font-family:'TwilioSansMono', Courier, monospace;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.5;font-size:1em;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-hyphens:none;-moz-hyphens:none;-ms-hyphens:none;hyphens:none;margin:0;overflow:auto;background:inherit;width:100%;padding-bottom:2rem" tabindex="0" class="css-1p78m0" data-ch="true"><div style="min-width:fit-content"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><style data-emotion="css 519pyc">.css-519pyc{box-sizing:border-box;display:inline-block;box-sizing:content-box;opacity:0.5;padding-left:1.5rem;padding-right:1.5ch;text-align:right;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;min-width:1ch;}</style><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-519pyc">1</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#79C0FF">exports</span><span style="color:#C9D1D9">.</span><span style="color:#D2A8FF">handler</span> <span style="color:#FF7B72">=</span> <span style="color:#C9D1D9">(</span><span style="color:#FFA657">context</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">event</span><span style="color:#C9D1D9">,</span> <span style="color:#FFA657">callback</span><span style="color:#C9D1D9">)</span> <span style="color:#FF7B72">=></span> <span style="color:#C9D1D9">{</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-519pyc">2</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">const</span> <span style="color:#79C0FF">response</span> <span style="color:#FF7B72">= new</span> <span style="color:#C9D1D9">Twilio.</span><span style="color:#D2A8FF">Response</span><span style="color:#C9D1D9">();</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-519pyc">3</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#C9D1D9">response.</span><span style="color:#D2A8FF">removeCookie</span><span style="color:#C9D1D9">(</span><span style="color:#A5D6FF">'tz'</span><span style="color:#C9D1D9">);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-519pyc">4</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-519pyc">5</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div> <span style="color:#FF7B72">return</span> <span style="color:#D2A8FF">callback</span><span style="color:#C9D1D9">(</span><span style="color:#79C0FF">null</span><span style="color:#C9D1D9">, response);</span> </div></div></div><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><span data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-519pyc">6</span><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-luzz01"><div><span style="color:#C9D1D9">};</span></div></div></div></div></pre></div></div></div></div></section> <section id="whats-next-section-indexable"><hr data-paste-element="SEPARATOR" data-paste-core-version="20.7.0" aria-orientation="horizontal" class="css-1y5brhz"/><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-m8ey6p"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-roynbj"><div data-paste-element="BOX" data-paste-core-version="20.7.0" class="css-gt12nx"><h2 data-paste-element="HEADING" data-paste-core-version="20.6.0" id="whats-next" class="css-16k5vxt">What's next?</h2><a data-paste-element="BOX" data-paste-core-version="20.7.0" href="#whats-next" class="css-f02h4i"><span data-paste-element="ICON" data-paste-core-version="20.7.0" class="css-pe4vrq"><svg role="img" aria-hidden="false" xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" fill="none" viewBox="0 0 20 20" 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01-.603-.537c-.159-.257-.239-.567-.239-.924 0-1.218.524-3.648 1.553-5.696.31-.616.693-.884 1.18-1.192C5.807 3.71 6.378 3.5 7 3.5h3c1.116 0 2.204.417 3.002.883.178.104.345.212.498.321v-.37a.5.5 0 01.5-.5h3a.5.5 0 01.5.5V13a.5.5 0 01-.5.5h-3a.5.5 0 01-.5-.5v-.45zm-3.474 3.227c-.186.554-.611.752-.909.72a.571.571 0 01-.399-.234c-.114-.15-.218-.409-.218-.824a2 2 0 01.123-.61c.054-.16.113-.312.177-.475.034-.086.07-.176.105-.272.095-.252.194-.542.225-.828.032-.296-.005-.635-.23-.934a1.23 1.23 0 00-.491-.367 2.874 2.874 0 00-.571-.176 8.31 8.31 0 00-1.317-.144c-.676-.029-1.381-.008-1.767.003-.118.003-.206.006-.254.006-.25 0-.519-.018-.717-.115a.452.452 0 01-.194-.168c-.044-.07-.089-.19-.089-.396 0-1.04.476-3.316 1.447-5.247.184-.366.375-.515.82-.796.468-.296.855-.42 1.233-.42h3c.884 0 1.796.337 2.498.747.349.203.628.414.813.59.093.09.152.16.184.208l.005.007v4.98a7.245 7.245 0 01-.329.39 54.1 54.1 0 01-.308.342c-.223.247-.483.534-.746.838-.788.909-1.73 2.096-2.091 3.175zM14.5 12.5h2V4.833h-2V12.5z"></path></svg></span></span></button></div></div></div><p data-paste-element="PARAGRAPH" data-paste-core-version="20.6.0" class="css-tcah8o">Now that you more about how to set and modify the headers in your Function responses, let's go over some of the <a data-paste-element="ANCHOR" data-paste-core-version="20.7.0" href="/docs/serverless/functions-assets/functions/headers-and-cookies/limitations" title="limitations on headers and cookies" class="css-lpeit6">limitations on headers and cookies</a> so that you don't encounter as many errors.</p></section></div></div></div><style data-emotion="css n7gvag">.css-n7gvag{box-sizing:border-box;margin-top:2rem;margin-bottom:2rem;margin-left:1.75rem;margin-right:1.75rem;padding-top:4.75rem;position:relative;}@media screen and (min-width: 768px){.css-n7gvag{margin-top:2rem;margin-bottom:2rem;margin-left:1.75rem;margin-right:1.75rem;}}@media screen and (min-width: 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It accepts the name of the header and its intended value.\"\n }), _jsx(Info, {\n children: _jsxs(_components.p, {\n children: [\"If \", _jsx(_components.code, {\n children: \"Response.appendHeader\"\n }), \" is called with the name of a header that already exists, that header will be converted from a string to an array, and the provided value will be concatenated to that array of values.\"]\n })\n }), _jsx(_components.p, {\n children: _jsx(_components.strong, {\n children: \"Method Parameters\"\n })\n }), _jsxs(_components.table, {\n children: [_jsx(_components.thead, {\n children: _jsxs(_components.tr, {\n children: [_jsx(_components.th, {\n children: \"Name\"\n }), _jsx(_components.th, {\n children: \"Type\"\n }), _jsx(_components.th, {\n children: \"Example\"\n })]\n })\n }), _jsxs(_components.tbody, {\n children: [_jsxs(_components.tr, {\n children: [_jsx(_components.td, {\n children: \"key\"\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"string\"\n })\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"'content-type'\"\n })\n })]\n }), _jsxs(_components.tr, {\n children: [_jsx(_components.td, {\n children: \"value\"\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"string | string[]\"\n })\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"'application/json'\"\n })\n })]\n })]\n })]\n }), _jsx(_components.p, {\n children: _jsx(_components.strong, {\n children: \"Examples\"\n })\n }), _jsx(CodeBlock, {\n codeblock: {\n \"value\": \"exports.handler = (context, event, callback) =\u003e {\\n const response = new Twilio.Response();\\n response\\n .appendHeader('content-type', 'application/json')\\n // You can append a multi-value header by passing a list of strings\\n .appendHeader('yes', ['no', 'maybe', 'so'])\\n // Instead of setting the header to an array, it's also valid to\\n // pass a comma-separated string of values\\n .appendHeader('cache-control', 'no-store, max-age=0');\\n\\n return callback(null, response);\\n};\",\n \"lang\": \"javascript\",\n \"meta\": \"\",\n \"code\": \"exports.handler = (context, event, callback) =\u003e {\\n const response = new Twilio.Response();\\n response\\n .appendHeader('content-type', 'application/json')\\n // You can append a multi-value header by passing a list of strings\\n .appendHeader('yes', ['no', 'maybe', 'so'])\\n // Instead of setting the header to an array, it's also valid to\\n // pass a comma-separated string of values\\n .appendHeader('cache-control', 'no-store, max-age=0');\\n\\n return callback(null, response);\\n};\",\n \"tokens\": [[\"exports\", \"#79C0FF\"], [\".\", \"#C9D1D9\"], [\"handler\", \"#D2A8FF\"], \" \", [\"=\", \"#FF7B72\"], \" \", [\"(\", \"#C9D1D9\"], [\"context\", \"#FFA657\"], [\",\", \"#C9D1D9\"], \" \", [\"event\", \"#FFA657\"], [\",\", \"#C9D1D9\"], \" \", [\"callback\", \"#FFA657\"], [\")\", \"#C9D1D9\"], \" \", [\"=\u003e\", 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.appendHeader('never', 'up');\\n // The header is now `'never': ['gonna', 'give', 'you', 'up']`\\n\\n return callback(null, response);\\n};\",\n \"lang\": \"javascript\",\n \"meta\": \"\",\n \"code\": \"exports.handler = (context, event, callback) =\u003e {\\n const response = new Twilio.Response();\\n response\\n .appendHeader('never', 'gonna')\\n // Appending a header that already exists will convert that header to\\n // a multi-value header and concatenate the new value\\n .appendHeader('never', 'give')\\n .appendHeader('never', 'you')\\n .appendHeader('never', 'up');\\n // The header is now `'never': ['gonna', 'give', 'you', 'up']`\\n\\n return callback(null, response);\\n};\",\n \"tokens\": [[\"exports\", \"#79C0FF\"], [\".\", \"#C9D1D9\"], [\"handler\", \"#D2A8FF\"], \" \", [\"=\", \"#FF7B72\"], \" \", [\"(\", \"#C9D1D9\"], [\"context\", \"#FFA657\"], [\",\", \"#C9D1D9\"], \" \", [\"event\", \"#FFA657\"], [\",\", \"#C9D1D9\"], \" \", [\"callback\", \"#FFA657\"], [\")\", \"#C9D1D9\"], \" \", [\"=\u003e\", \"#FF7B72\"], \" \", [\"{\", \"#C9D1D9\"], \"\\n \", [\"const\", \"#FF7B72\"], \" \", [\"response\", \"#79C0FF\"], \" \", [\"= new\", \"#FF7B72\"], \" \", [\"Twilio.\", \"#C9D1D9\"], [\"Response\", \"#D2A8FF\"], [\"();\", \"#C9D1D9\"], \"\\n \", [\"response\", \"#C9D1D9\"], \"\\n \", [\".\", \"#C9D1D9\"], [\"appendHeader\", \"#D2A8FF\"], [\"(\", \"#C9D1D9\"], [\"'never'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \" \", [\"'gonna'\", \"#A5D6FF\"], [\")\", \"#C9D1D9\"], \"\\n \", [\"// Appending a header that already exists will convert that header to\", \"#8B949E\"], \"\\n \", [\"// a multi-value header and concatenate the new value\", \"#8B949E\"], \"\\n \", [\".\", \"#C9D1D9\"], [\"appendHeader\", \"#D2A8FF\"], [\"(\", \"#C9D1D9\"], [\"'never'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \" \", [\"'give'\", \"#A5D6FF\"], [\")\", \"#C9D1D9\"], \"\\n \", [\".\", \"#C9D1D9\"], [\"appendHeader\", \"#D2A8FF\"], [\"(\", \"#C9D1D9\"], [\"'never'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \" \", [\"'you'\", \"#A5D6FF\"], [\")\", \"#C9D1D9\"], \"\\n \", [\".\", \"#C9D1D9\"], [\"appendHeader\", \"#D2A8FF\"], [\"(\", \"#C9D1D9\"], [\"'never'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \" \", [\"'up'\", \"#A5D6FF\"], [\");\", \"#C9D1D9\"], \"\\n \", [\"// The header is now `'never': ['gonna', 'give', 'you', 'up']`\", \"#8B949E\"], \"\\n\\n \", [\"return\", \"#FF7B72\"], \" \", [\"callback\", \"#D2A8FF\"], [\"(\", \"#C9D1D9\"], [\"null\", \"#79C0FF\"], [\", response);\", \"#C9D1D9\"], \"\\n\", [\"};\", \"#C9D1D9\"]],\n \"annotations\": [],\n \"themeName\": \"github-dark\",\n \"style\": {\n \"color\": \"#c9d1d9\",\n \"background\": \"#0d1117\"\n }\n }\n })]\n }), \"\\n\", _jsxs(_components.section, {\n id: \"cookies-section-indexable\",\n children: [_jsx(_components.h2, {\n id: \"cookies\",\n children: \"Cookies\"\n }), _jsx(Info, {\n children: _jsxs(_components.p, {\n children: [\"Commands to set, modify, and delete cookies are only available when your Function is running \", _jsx(_components.code, {\n children: \"@twilio/runtime-handler\"\n }), \" version \", _jsx(_components.code, {\n children: \"1.2.0\"\n }), \" or later. Consult the \", _jsx(_components.a, {\n href: \"/docs/serverless/functions-assets/handler\",\n children: \"Runtime Handler guide\"\n }), \" to learn more about the latest version and how to update.\"]\n })\n })]\n }), \"\\n\", _jsxs(_components.section, {\n id: \"setcookie-section-indexable\",\n children: [_jsx(_components.h3, {\n id: \"setcookie\",\n children: _jsx(_components.code, {\n children: \"setCookie(key, value, attributes?)\"\n })\n }), _jsx(_components.p, {\n children: \"This method allows you to add a cookie to your Function's response. It accepts the name of the cookie, its value, and any optional attributes to be assigned to the cookie.\"\n }), _jsx(_components.p, {\n children: _jsx(_components.strong, {\n children: \"Method Parameters\"\n })\n }), _jsxs(_components.table, {\n children: [_jsx(_components.thead, {\n children: _jsxs(_components.tr, {\n children: [_jsx(_components.th, {\n children: \"Name\"\n }), _jsx(_components.th, {\n children: \"Type\"\n }), _jsx(_components.th, {\n children: \"Example\"\n })]\n })\n }), _jsxs(_components.tbody, {\n children: [_jsxs(_components.tr, {\n children: [_jsx(_components.td, {\n children: \"key\"\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"string\"\n })\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"'tz'\"\n })\n })]\n }), _jsxs(_components.tr, {\n children: [_jsx(_components.td, {\n children: \"value\"\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"string | string[]\"\n })\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"'America/Los_Angeles'\"\n })\n })]\n }), _jsxs(_components.tr, {\n children: [_jsx(_components.td, {\n children: \"attributes (optional)\"\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"string[]?\"\n })\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"['HttpOnly', 'Secure', 'SameSite=Strict', 'Max-Age=86400']\"\n })\n })]\n })]\n })]\n }), _jsx(_components.p, {\n children: _jsx(_components.strong, {\n children: \"Examples\"\n })\n }), _jsx(CodeBlock, {\n codeblock: {\n \"value\": \"exports.handler = (context, event, callback) =\u003e {\\n const response = new Twilio.Response();\\n response\\n .setCookie('has_recent_activity', 'true')\\n .setCookie('tz', 'America/Los_Angeles', [\\n 'HttpOnly',\\n 'Secure',\\n 'SameSite=Strict',\\n 'Max-Age=86400',\\n ]);\\n\\n return callback(null, response);\\n};\",\n \"lang\": \"javascript\",\n \"meta\": \"\",\n \"code\": \"exports.handler = (context, event, callback) =\u003e {\\n const response = new Twilio.Response();\\n response\\n .setCookie('has_recent_activity', 'true')\\n .setCookie('tz', 'America/Los_Angeles', [\\n 'HttpOnly',\\n 'Secure',\\n 'SameSite=Strict',\\n 'Max-Age=86400',\\n ]);\\n\\n return callback(null, response);\\n};\",\n \"tokens\": [[\"exports\", \"#79C0FF\"], [\".\", \"#C9D1D9\"], [\"handler\", \"#D2A8FF\"], \" \", [\"=\", \"#FF7B72\"], \" \", [\"(\", \"#C9D1D9\"], [\"context\", \"#FFA657\"], [\",\", \"#C9D1D9\"], \" \", [\"event\", \"#FFA657\"], [\",\", \"#C9D1D9\"], \" \", [\"callback\", \"#FFA657\"], [\")\", \"#C9D1D9\"], \" \", [\"=\u003e\", \"#FF7B72\"], \" \", [\"{\", \"#C9D1D9\"], \"\\n \", [\"const\", \"#FF7B72\"], \" \", [\"response\", \"#79C0FF\"], \" \", [\"= new\", \"#FF7B72\"], \" \", [\"Twilio.\", \"#C9D1D9\"], [\"Response\", \"#D2A8FF\"], [\"();\", \"#C9D1D9\"], \"\\n \", [\"response\", \"#C9D1D9\"], \"\\n \", [\".\", \"#C9D1D9\"], [\"setCookie\", \"#D2A8FF\"], [\"(\", \"#C9D1D9\"], [\"'has_recent_activity'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \" \", [\"'true'\", \"#A5D6FF\"], [\")\", \"#C9D1D9\"], \"\\n \", [\".\", \"#C9D1D9\"], [\"setCookie\", \"#D2A8FF\"], [\"(\", \"#C9D1D9\"], [\"'tz'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \" \", [\"'America/Los_Angeles'\", \"#A5D6FF\"], [\", [\", \"#C9D1D9\"], \"\\n \", [\"'HttpOnly'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \"\\n \", [\"'Secure'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \"\\n \", [\"'SameSite=Strict'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \"\\n \", [\"'Max-Age=86400'\", \"#A5D6FF\"], [\",\", \"#C9D1D9\"], \"\\n \", [\"]);\", \"#C9D1D9\"], \"\\n\\n \", [\"return\", \"#FF7B72\"], \" \", [\"callback\", \"#D2A8FF\"], [\"(\", \"#C9D1D9\"], [\"null\", \"#79C0FF\"], [\", response);\", \"#C9D1D9\"], \"\\n\", [\"};\", \"#C9D1D9\"]],\n \"annotations\": [],\n \"themeName\": \"github-dark\",\n \"style\": {\n \"color\": \"#c9d1d9\",\n \"background\": \"#0d1117\"\n }\n }\n }), _jsxs(Info, {\n children: [_jsxs(_components.p, {\n children: [\"Cookie attributes such as \", _jsx(_components.code, {\n children: \"HttpOnly\"\n }), \" and \", _jsx(_components.code, {\n children: \"Secure\"\n }), \" are shown in these examples, however, you don't need to add them yourself. Runtime automatically adds the \", _jsx(_components.code, {\n children: \"HttpOnly\"\n }), \" and \", _jsx(_components.code, {\n children: \"Secure\"\n }), \" attributes to your cookies by default unless you have already manually set those values.\"]\n }), _jsxs(_components.p, {\n children: [\"If you do not set a \", _jsx(_components.code, {\n children: \"Max-Age\"\n }), \" or \", _jsx(_components.code, {\n children: \"Expires\"\n }), \" on a cookie, it will be considered a \", _jsx(_components.a, {\n href: \"https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#define_the_lifetime_of_a_cookie\",\n children: \"Session cookie\"\n }), \". If you set both \", _jsx(_components.code, {\n children: \"Max-Age\"\n }), \" and \", _jsx(_components.code, {\n children: \"Expires\"\n }), \" on a cookie, \", _jsx(_components.code, {\n children: \"Max-Age\"\n }), \" takes precedence.\"]\n })]\n }), _jsx(Danger, {\n children: _jsxs(_components.p, {\n children: [\"If you set the \", _jsx(_components.code, {\n children: \"Max-Age\"\n }), \" or \", _jsx(_components.code, {\n children: \"Expires\"\n }), \" of a cookie to greater than 24 hours, your Function will return a \", _jsx(_components.code, {\n children: \"400\"\n }), \" error: \", _jsx(_components.code, {\n children: \"Cookies max-age cannot be greater than a day\"\n }), \".\"]\n })\n })]\n }), \"\\n\", _jsxs(_components.section, {\n id: \"removecookie-section-indexable\",\n children: [_jsx(_components.h3, {\n id: \"removecookie\",\n children: _jsx(_components.code, {\n children: \"removeCookie(key)\"\n })\n }), _jsxs(_components.p, {\n children: [\"This method allows you to effectively remove a specific cookie from the response of your Twilio Function. It accepts the name of the cookie to be removed, and sets the \", _jsx(_components.code, {\n children: \"Max-Age\"\n }), \" attribute of the cookie equal to 0 so that clients and browsers will remove the cookie upon receiving the response.\"]\n })]\n }), \"\\n\", _jsxs(_components.section, {\n id: \"method-parameters-section\",\n children: [_jsx(_components.h4, {\n id: \"method-parameters\",\n children: \"Method Parameters\"\n }), _jsxs(_components.table, {\n children: [_jsx(_components.thead, {\n children: _jsxs(_components.tr, {\n children: [_jsx(_components.th, {\n children: \"Name\"\n }), _jsx(_components.th, {\n children: \"Type\"\n }), _jsx(_components.th, {\n children: \"Example\"\n })]\n })\n }), _jsx(_components.tbody, {\n children: _jsxs(_components.tr, {\n children: [_jsx(_components.td, {\n children: \"key\"\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"string\"\n })\n }), _jsx(_components.td, {\n children: _jsx(_components.code, {\n children: \"'tz'\"\n })\n })]\n })\n })]\n })]\n }), \"\\n\", _jsxs(_components.section, {\n id: \"examples-section\",\n children: [_jsx(_components.h4, {\n id: \"examples\",\n children: \"Examples\"\n }), _jsxs(_components.p, {\n children: [\"In the following example, the client may contain a cookie \", _jsx(_components.code, {\n children: \"tz\"\n }), \" and send it along with the request. Upon receiving this response from your Function, \", _jsx(_components.code, {\n children: \"tz\"\n }), \" will be removed from the client's cookie store and not sent with subsequent requests to your Function's domain.\"]\n }), _jsx(CodeBlock, {\n codeblock: {\n \"value\": \"exports.handler = (context, event, callback) =\u003e {\\n const response = new Twilio.Response();\\n response.removeCookie('tz');\\n\\n return callback(null, response);\\n};\",\n \"lang\": \"javascript\",\n \"meta\": \"\",\n \"code\": \"exports.handler = (context, event, callback) =\u003e {\\n const response = new Twilio.Response();\\n response.removeCookie('tz');\\n\\n return callback(null, response);\\n};\",\n \"tokens\": [[\"exports\", \"#79C0FF\"], [\".\", \"#C9D1D9\"], [\"handler\", \"#D2A8FF\"], \" \", [\"=\", \"#FF7B72\"], \" \", [\"(\", \"#C9D1D9\"], [\"context\", \"#FFA657\"], [\",\", \"#C9D1D9\"], \" \", [\"event\", \"#FFA657\"], [\",\", \"#C9D1D9\"], \" \", [\"callback\", \"#FFA657\"], [\")\", 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