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class="metadata">Published <span><a class="-x-ago" href="" title="Dec 11, 2024" role="button" data-timestamp="1733921983425">3 months ago</a></span> • <a class="-pub-publisher" href="/publishers/tools.dart.dev"><img class="-pub-publisher-shield filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/>tools.dart.dev</a><span class="package-badge" title="Package is compatible with Dart 3.">Dart 3 compatible</span></div><div class="detail-tags-and-like"><div class="detail-tags"><div class="-pub-tag-badge"><span class="tag-badge-main">SDK</span><a class="tag-badge-sub" href="/packages?q=sdk%3Adart" rel="nofollow" title="Packages compatible with Dart SDK">Dart</a><a class="tag-badge-sub" href="/packages?q=sdk%3Aflutter" rel="nofollow" title="Packages compatible with Flutter SDK">Flutter</a></div></div><div class="detail-like"><button id="-pub-like-icon-button" class="mdc-icon-button" data-ga-click-event="toggle-like" aria-pressed="false" title="Like this package"><img class="mdc-icon-button__icon" src="/static/hash-j60jq2j3/img/like-inactive.svg" alt="liked status: inactive" width="18" height="18"/><img class="mdc-icon-button__icon mdc-icon-button__icon--on" src="/static/hash-j60jq2j3/img/like-active.svg" alt="liked status: active" width="18" height="18"/></button><span class="likes-count"><span id="likes-count">80</span></span></div></div></div></div></div></div><div class="detail-container"><div class="detail-lead"><div class="detail-metadata-toggle"><div class="detail-metadata-toggle-icon">→</div><h3 class="detail-lead-title">Metadata</h3></div><p class="detail-lead-text">Provides client and server functionality for setting up bi-directional communication through Server Sent Events (SSE) and corresponding POST requests.</p><p class="detail-lead-more"><a class="detail-metadata-toggle">More...</a></p></div></div><div class="detail-body"><div class="detail-tabs"><div class="detail-tabs-wide-header"><div class="detail-container"><ul class="detail-tabs-header"><li class="detail-tab tab-button detail-tab-readme-title -active">Readme</li><li class="detail-tab tab-link detail-tab-changelog-title"><a href="/packages/sse/changelog" role="button">Changelog</a></li><li class="detail-tab tab-link detail-tab-installing-title"><a href="/packages/sse/install" role="button">Installing</a></li><li class="detail-tab tab-link detail-tab-versions-title"><a href="/packages/sse/versions" role="button">Versions</a></li><li class="detail-tab tab-link detail-tab-analysis-title"><a href="/packages/sse/score" role="button">Scores</a></li></ul></div></div><div class="detail-container detail-body-main"><div class="detail-tabs-content"><section class="tab-content detail-tab-readme-content -active markdown-body"><p><a href="https://github.com/dart-lang/tools/actions/workflows/sse.yaml" rel="ugc"><img src="https://github.com/dart-lang/tools/actions/workflows/sse.yaml/badge.svg" alt="Build Status"></a> <a href="https://pub.dev/packages/sse"><img src="https://img.shields.io/pub/v/sse.svg" alt="pub package"></a> <a href="https://pub.dev/packages/sse/publisher"><img src="https://img.shields.io/pub/publisher/sse.svg" alt="package publisher"></a></p> <p>This package provides support for bi-directional communication through Server Sent Events and corresponding POST requests.</p> <p>This package is not intended to be a general purpose SSE package, but instead is a bidirectional protocol for use when Websockets are unavailable. That is, both the client and the server expose a <code>sink</code> and <code>stream</code> on which to send and receive messages respectively.</p> <p>Both the server and client have implicit assumptions on each other and therefore a client from this package must be paired with a server from this package.</p> </section></div></div></div><aside class="detail-info-box"><a class="packages-scores" href="/packages/sse/score"><div class="packages-score packages-score-like"><div class="packages-score-value -has-value"><span class="packages-score-value-number">80</span><span class="packages-score-value-sign"></span></div><div class="packages-score-label">likes</div></div><div class="packages-score packages-score-health"><div class="packages-score-value -has-value"><span class="packages-score-value-number">130</span><span class="packages-score-value-sign"></span></div><div class="packages-score-label">points</div></div><div class="packages-score packages-score-downloads" title="Number of downloads of this package during the past 30 days"><div class="packages-score-value -has-value"><span class="packages-score-value-number">3.47M</span><span class="packages-score-value-sign"></span></div><div class="packages-score-label">downloads</div></div></a><h3 class="title">Publisher</h3><p><a href="/publishers/tools.dart.dev"><img class="-pub-publisher-shield filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/>tools.dart.dev</a></p><h3 class="title">Weekly Downloads</h3><div id="-weekly-downloads-sparkline" class="weekly-downloads-sparkline" data-widget="weekly-sparkline" data-weekly-sparkline-points="gM/tZzjGCwAwngwAj2IMAFTpCwAU8wsAxIMMAHBuDABrvAsAbeQKAOyQCgDQlwoAL0oKAK9dCQCCpgUAQKsGANf4CQBtBQoAn0YJAGotCQCk8wgAZYsJABHgCAC7wQgArA8JAJjFCABi/AgAtZcIAIamCAD68AcARpQIACB2CABTswgAT7UIAB5KCACxkAgAdp8IAKB8CAA7NggAt/AHAIPqBwAb1ggA9BQIAGRWCAAISggAp3AIABzaCABNXAgALp8HAB42BwBhVwgAB4EIACqVCAA="></div><h3 class="title pkg-infobox-metadata">Metadata</h3><p>Provides client and server functionality for setting up bi-directional communication through Server Sent Events (SSE) and corresponding POST requests.</p><p><a class="link" href="https://github.com/dart-lang/tools/tree/main/pkgs/sse" rel="ugc">Repository (GitHub)</a><br/><a class="link" href="https://github.com/dart-lang/tools/blob/main/CONTRIBUTING.md" rel="ugc">Contributing</a><br/></p><h3 class="title">Documentation</h3><p><a class="link" href="/documentation/sse/latest/">API reference</a><br/></p><h3 class="title">License</h3><p><img class="inline-icon-img filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-balance.svg" alt="" width="14" height="14" role="presentation"/>BSD-3-Clause (<a href="/packages/sse/license">license</a>)</p><h3 class="title">Dependencies</h3><p><a href="/packages/async" title="^2.0.8">async</a>, <a href="/packages/collection" title="^1.0.0">collection</a>, <a href="/packages/logging" title="^1.0.0">logging</a>, <a href="/packages/pool" title="^1.5.0">pool</a>, <a href="/packages/shelf" title="^1.1.0">shelf</a>, <a href="/packages/stream_channel" title="^2.0.0">stream_channel</a>, <a href="/packages/web" title=">=0.5.0 <2.0.0">web</a></p><h3 class="title">More</h3><p><a href="/packages?q=dependency%3Asse" rel="nofollow">Packages that depend on sse</a></p></aside></div><script type="application/ld+json">{"@context":"http\u003a\u002f\u002fschema.org","@type":"SoftwareSourceCode","name":"sse","version":"4.1.7","description":"sse - Provides client and server functionality for setting up bi-directional communication through Server Sent Events \u0028SSE\u0029 and corresponding POST requests.","url":"https\u003a\u002f\u002fpub.dev\u002fpackages\u002fsse","dateCreated":"2019-02-05T20\u003a32\u003a34.681489Z","dateModified":"2024-12-11T12\u003a59\u003a43.425456Z","programmingLanguage":"Dart","image":"https\u003a\u002f\u002fpub.dev\u002fstatic\u002fimg\u002fpub-dev-icon-cover-image.png","license":"https\u003a\u002f\u002fpub.dev\u002fpackages\u002fsse\u002flicense"}</script></div><div class="detail-metadata"><h3 class="detail-metadata-title"><span class="detail-metadata-toggle">←</span> Metadata</h3><div class="detail-info-box"><a class="packages-scores" href="/packages/sse/score"><div class="packages-score packages-score-like"><div class="packages-score-value -has-value"><span class="packages-score-value-number">80</span><span class="packages-score-value-sign"></span></div><div class="packages-score-label">likes</div></div><div class="packages-score packages-score-health"><div class="packages-score-value -has-value"><span class="packages-score-value-number">130</span><span class="packages-score-value-sign"></span></div><div class="packages-score-label">points</div></div><div class="packages-score packages-score-downloads" title="Number of downloads of this package during the past 30 days"><div class="packages-score-value -has-value"><span class="packages-score-value-number">3.47M</span><span class="packages-score-value-sign"></span></div><div class="packages-score-label">downloads</div></div></a><h3 class="title">Publisher</h3><p><a href="/publishers/tools.dart.dev"><img class="-pub-publisher-shield filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/>tools.dart.dev</a></p><h3 class="title">Weekly Downloads</h3><div id="-weekly-downloads-sparkline" class="weekly-downloads-sparkline" data-widget="weekly-sparkline" data-weekly-sparkline-points="gM/tZzjGCwAwngwAj2IMAFTpCwAU8wsAxIMMAHBuDABrvAsAbeQKAOyQCgDQlwoAL0oKAK9dCQCCpgUAQKsGANf4CQBtBQoAn0YJAGotCQCk8wgAZYsJABHgCAC7wQgArA8JAJjFCABi/AgAtZcIAIamCAD68AcARpQIACB2CABTswgAT7UIAB5KCACxkAgAdp8IAKB8CAA7NggAt/AHAIPqBwAb1ggA9BQIAGRWCAAISggAp3AIABzaCABNXAgALp8HAB42BwBhVwgAB4EIACqVCAA="></div><h3 class="title pkg-infobox-metadata">Metadata</h3><p>Provides client and server functionality for setting up bi-directional communication through Server Sent Events (SSE) and corresponding POST requests.</p><p><a class="link" href="https://github.com/dart-lang/tools/tree/main/pkgs/sse" rel="ugc">Repository (GitHub)</a><br/><a class="link" href="https://github.com/dart-lang/tools/blob/main/CONTRIBUTING.md" rel="ugc">Contributing</a><br/></p><h3 class="title">Documentation</h3><p><a class="link" href="/documentation/sse/latest/">API reference</a><br/></p><h3 class="title">License</h3><p><img class="inline-icon-img filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-balance.svg" alt="" width="14" height="14" role="presentation"/>BSD-3-Clause (<a href="/packages/sse/license">license</a>)</p><h3 class="title">Dependencies</h3><p><a href="/packages/async" title="^2.0.8">async</a>, <a href="/packages/collection" title="^1.0.0">collection</a>, <a href="/packages/logging" title="^1.0.0">logging</a>, <a href="/packages/pool" title="^1.5.0">pool</a>, <a href="/packages/shelf" title="^1.1.0">shelf</a>, <a href="/packages/stream_channel" title="^2.0.0">stream_channel</a>, <a href="/packages/web" title=">=0.5.0 <2.0.0">web</a></p><h3 class="title">More</h3><p><a href="/packages?q=dependency%3Asse" rel="nofollow">Packages that depend on sse</a></p></div><p class="detail-lead-back"><a class="detail-metadata-toggle">Back</a></p></div><div id="-screenshot-carousel" class="carousel"><fab id="-carousel-prev" class="mdc-fab carousel-prev carousel-nav" data-mdc-auto-init="MDCRipple" title="Previous" 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