Event handling - Turn-key research data management repository

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class="md-nav__link"> <span class="md-ellipsis"> Static pages </span> </a> </li> <li class="md-nav__item"> <a href="../../../customize/dois/" class="md-nav__link"> <span class="md-ellipsis"> DOI registration </span> </a> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_11" > <label class="md-nav__link" for="__nav_4_11" id="__nav_4_11_label" tabindex="0"> <span class="md-ellipsis"> Other PIDs integrations </span> <span class="md-nav__icon md-icon"></span> </label> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_11_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_4_11"> <span class="md-nav__icon md-icon"></span> Other PIDs integrations </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../customize/other-pids/urns/" class="md-nav__link"> <span class="md-ellipsis"> DNB URNs </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item"> <a 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class="md-nav__link"> <span class="md-ellipsis"> Sanitize input data </span> </a> </li> <li class="md-nav__item"> <a href="../../topics/theming/" class="md-nav__link"> <span class="md-ellipsis"> Theming </span> </a> </li> <li class="md-nav__item"> <a href="../../topics/administration_panel/" class="md-nav__link"> <span class="md-ellipsis"> Administration panel </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_5" > <label class="md-nav__link" for="__nav_5_5" id="__nav_5_5_label" tabindex="0"> <span class="md-ellipsis"> How-to guides </span> <span class="md-nav__icon md-icon"></span> </label> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_5_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_5_5"> <span class="md-nav__icon md-icon"></span> How-to guides </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../howtos/i18n/" class="md-nav__link"> <span class="md-ellipsis"> Translation (i18n) </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/custom_fields/" class="md-nav__link"> <span class="md-ellipsis"> Create a new custom field </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/custom_code/" class="md-nav__link"> <span class="md-ellipsis"> Create custom code and views </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/add_javascript/" class="md-nav__link"> <span class="md-ellipsis"> Add JavaScript </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/override_components/" class="md-nav__link"> <span class="md-ellipsis"> Override UI React components </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/search_terms_migration/" class="md-nav__link"> <span class="md-ellipsis"> Create search terms mappings </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/alembic/" class="md-nav__link"> <span class="md-ellipsis"> Create a database migration </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/security-fix/" class="md-nav__link"> <span class="md-ellipsis"> Fix a vulnerability </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/dev_email/" class="md-nav__link"> <span class="md-ellipsis"> Test emails locally </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/route_migration/" class="md-nav__link"> <span class="md-ellipsis"> Migrate legacy routes </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/backup_search_indices/" class="md-nav__link"> <span class="md-ellipsis"> Back up search indices </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/restrict_access/" class="md-nav__link"> <span class="md-ellipsis"> Restrict access to pages </span> </a> </li> <li class="md-nav__item"> <a href="../../howtos/notifications/" class="md-nav__link"> <span class="md-ellipsis"> Create and configure notifications </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--active md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_6" checked> <label class="md-nav__link" for="__nav_5_6" id="__nav_5_6_label" tabindex="0"> <span class="md-ellipsis"> Architecture </span> <span class="md-nav__icon md-icon"></span> </label> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_6_label" aria-expanded="true"> <label class="md-nav__title" for="__nav_5_6"> <span class="md-nav__icon md-icon"></span> Architecture </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../" class="md-nav__link"> <span class="md-ellipsis"> Introduction </span> </a> </li> <li class="md-nav__item"> <a href="../infrastructure/" class="md-nav__link"> <span class="md-ellipsis"> Infrastructure </span> </a> </li> <li class="md-nav__item"> <a href="../software/" class="md-nav__link"> <span class="md-ellipsis"> Software </span> </a> </li> <li class="md-nav__item"> <a href="../runtime/" class="md-nav__link"> <span class="md-ellipsis"> Runtime </span> </a> </li> <li class="md-nav__item"> <a href="../requests/" class="md-nav__link"> <span class="md-ellipsis"> Requests </span> </a> </li> <li class="md-nav__item"> <a href="../communities/" class="md-nav__link"> <span class="md-ellipsis"> Communities </span> </a> </li> <li class="md-nav__item"> <a href="../records/" class="md-nav__link"> <span class="md-ellipsis"> Records </span> </a> </li> <li class="md-nav__item md-nav__item--active"> <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc"> <label class="md-nav__link md-nav__link--active" for="__toc"> <span class="md-ellipsis"> Event handling </span> <span class="md-nav__icon md-icon"></span> </label> <a href="./" class="md-nav__link md-nav__link--active"> <span class="md-ellipsis"> Event handling </span> </a> <nav class="md-nav md-nav--secondary" aria-label="Table of contents"> <label class="md-nav__title" for="__toc"> <span class="md-nav__icon md-icon"></span> Table of contents </label> <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix> <li class="md-nav__item"> <a href="#emitter" class="md-nav__link"> <span class="md-ellipsis"> Emitter </span> </a> </li> <li class="md-nav__item"> <a href="#handler" class="md-nav__link"> <span class="md-ellipsis"> Handler </span> </a> </li> <li class="md-nav__item"> <a href="#events" class="md-nav__link"> <span class="md-ellipsis"> Events </span> </a> </li> <li class="md-nav__item"> <a href="#examples" class="md-nav__link"> <span class="md-ellipsis"> Examples </span> </a> <nav class="md-nav" aria-label="Examples"> <ul class="md-nav__list"> <li class="md-nav__item"> <a href="#change-notifications" class="md-nav__link"> <span class="md-ellipsis"> Change notifications </span> </a> </li> <li class="md-nav__item"> <a href="#statistics" class="md-nav__link"> <span class="md-ellipsis"> Statistics </span> </a> </li> <li class="md-nav__item"> <a href="#mail-notifications" class="md-nav__link"> <span class="md-ellipsis"> Mail notifications </span> </a> </li> <li class="md-nav__item"> <a href="#webhooks" class="md-nav__link"> <span class="md-ellipsis"> Webhooks </span> </a> </li> <li class="md-nav__item"> <a href="#audit-log" class="md-nav__link"> <span class="md-ellipsis"> Audit log </span> </a> </li> </ul> </nav> </li> </ul> </nav> </li> <li class="md-nav__item"> <a href="../notifications/" class="md-nav__link"> <span class="md-ellipsis"> Notifications </span> </a> </li> <li class="md-nav__item"> <a href="../reading/" class="md-nav__link"> <span class="md-ellipsis"> Recommended reading </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_7" > <label class="md-nav__link" for="__nav_5_7" id="__nav_5_7_label" tabindex="0"> <span class="md-ellipsis"> Concepts </span> <span class="md-nav__icon md-icon"></span> </label> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_7_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_5_7"> <span class="md-nav__icon md-icon"></span> Concepts </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../concepts/concurrency-control/" class="md-nav__link"> <span class="md-ellipsis"> Optimistic concurrency control </span> </a> </li> <li class="md-nav__item"> <a href="../../concepts/transactions/" class="md-nav__link"> <span class="md-ellipsis"> Database transaction management </span> </a> </li> </ul> </nav> </li> </ul> </nav> </li> <li class="md-nav__item"> <a href="../../../deploy/" class="md-nav__link"> <span class="md-ellipsis"> Deploy </span> </a> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7" > <label class="md-nav__link" for="__nav_7" id="__nav_7_label" tabindex="0"> <span class="md-ellipsis"> Reference </span> <span class="md-nav__icon md-icon"></span> </label> <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_7_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7"> <span class="md-nav__icon md-icon"></span> Reference </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../reference/" class="md-nav__link"> <span class="md-ellipsis"> Overview </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/cli/" class="md-nav__link"> <span class="md-ellipsis"> CLI </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/configuration/" class="md-nav__link"> <span class="md-ellipsis"> Configuration </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/metadata/" class="md-nav__link"> <span class="md-ellipsis"> Metadata </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/metadata/optional_metadata/" class="md-nav__link"> <span class="md-ellipsis"> Optional metadata </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/oai_pmh/" class="md-nav__link"> <span class="md-ellipsis"> OAI-PMH </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/export_formats/" class="md-nav__link"> <span class="md-ellipsis"> Export formats </span> </a> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7_8" > <label class="md-nav__link" for="__nav_7_8" id="__nav_7_8_label" tabindex="0"> <span class="md-ellipsis"> REST API </span> <span class="md-nav__icon md-icon"></span> </label> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_7_8_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_8"> <span class="md-nav__icon md-icon"></span> REST API </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../reference/rest_api_index/" class="md-nav__link"> <span class="md-ellipsis"> Overview </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_quickstart/" class="md-nav__link"> <span class="md-ellipsis"> Quickstart </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_communities/" class="md-nav__link"> <span class="md-ellipsis"> Communities </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_drafts_records/" class="md-nav__link"> <span class="md-ellipsis"> Drafts and Records </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_groups/" class="md-nav__link"> <span class="md-ellipsis"> Groups </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_members/" class="md-nav__link"> <span class="md-ellipsis"> Members </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_requests/" class="md-nav__link"> <span class="md-ellipsis"> Requests </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_users/" class="md-nav__link"> <span class="md-ellipsis"> Users </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_reviews/" class="md-nav__link"> <span class="md-ellipsis"> Reviews </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_vocabularies/" class="md-nav__link"> <span class="md-ellipsis"> Vocabularies </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_names/" class="md-nav__link"> <span class="md-ellipsis"> Names </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_funders/" class="md-nav__link"> <span class="md-ellipsis"> Funders </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_awards/" class="md-nav__link"> <span class="md-ellipsis"> Awards </span> </a> </li> <li class="md-nav__item"> <a href="../../../reference/rest_api_oaipmh_sets/" class="md-nav__link"> <span class="md-ellipsis"> OAI-PMH 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class="md-nav__item"> <a href="../../../contribute/copyright-policy/" class="md-nav__link"> <span class="md-ellipsis"> Copyright policy </span> </a> </li> <li class="md-nav__item"> <a href="../../../contribute/roadmap/" class="md-nav__link"> <span class="md-ellipsis"> Roadmap </span> </a> </li> <li class="md-nav__item"> <a href="../../../contribute/translators-guide/" class="md-nav__link"> <span class="md-ellipsis"> Translators guide </span> </a> </li> </ul> </nav> </li> </ul> </nav> </div> </div> </div> <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" > <div class="md-sidebar__scrollwrap"> <div class="md-sidebar__inner"> <nav class="md-nav md-nav--secondary" aria-label="Table of contents"> <label class="md-nav__title" for="__toc"> <span class="md-nav__icon md-icon"></span> Table of contents </label> <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix> <li class="md-nav__item"> <a href="#emitter" class="md-nav__link"> <span class="md-ellipsis"> Emitter </span> </a> </li> <li class="md-nav__item"> <a href="#handler" class="md-nav__link"> <span class="md-ellipsis"> Handler </span> </a> </li> <li class="md-nav__item"> <a href="#events" class="md-nav__link"> <span class="md-ellipsis"> Events </span> </a> </li> <li class="md-nav__item"> <a href="#examples" class="md-nav__link"> <span class="md-ellipsis"> Examples </span> </a> <nav class="md-nav" aria-label="Examples"> <ul class="md-nav__list"> <li class="md-nav__item"> <a href="#change-notifications" class="md-nav__link"> <span class="md-ellipsis"> Change notifications </span> </a> </li> <li class="md-nav__item"> <a href="#statistics" class="md-nav__link"> <span class="md-ellipsis"> Statistics </span> </a> </li> <li class="md-nav__item"> <a href="#mail-notifications" class="md-nav__link"> <span class="md-ellipsis"> Mail notifications </span> </a> </li> <li class="md-nav__item"> <a href="#webhooks" class="md-nav__link"> <span class="md-ellipsis"> Webhooks </span> </a> </li> <li class="md-nav__item"> <a href="#audit-log" class="md-nav__link"> <span class="md-ellipsis"> Audit log </span> </a> </li> </ul> </nav> </li> </ul> </nav> </div> </div> </div> <div class="md-content" data-md-component="content"> <article class="md-content__inner md-typeset"> <h1 id="event-handling">Event handling<a class="headerlink" href="#event-handling" title="Permanent link">¶</a></h1> <p>The InvenioRDM backend is not event driven. At the time of writing (v11) there is no support for event handling, although there is work being done to implement an <em>event bus</em> (<a href="https://github.com/inveniosoftware/rfcs/pull/56">RFC</a>).</p> <p>Nonetheless, there are several addressed use cases that would benefit from an event bus and will be refactored to use it once it is implemented.</p> <p>In the following sections these specific use cases will be described with more detail. However, they all share a similar architecture.</p> <h2 id="emitter">Emitter<a class="headerlink" href="#emitter" title="Permanent link">¶</a></h2> <p>The object in charge of sending/triggering the "event". The lack of an event bus leaves freedom of implementation on the emitter. For example, they could be emitted from the views, after unit of work (record) commit, etc. These events are written to case-specific message queues.</p> <p>The important factor to have into account is the decoupling of the <em>happening</em> of the action and creating the <em>event about it happening</em>. For example, notifying about record creation should be done after the record has been committed. This would avoid inconsistencies such as failing to commit a record because the event failed to be created, or sending a notification about something that was not committed yet and might fail to do so. This leads to the question of <em>what happens if after commit I cannot create the event?</em> and other corner cases. Addressing these cases is out of the scope of the current implementations and will be solved by the event bus.</p> <h2 id="handler">Handler<a class="headerlink" href="#handler" title="Permanent link">¶</a></h2> <p>For every event there is one or more operations that need to be executed. In the following examples the logic is implemented in case-specific tasks that run periodically (celery beat).</p> <p>When processing events it is important to <em>eventually</em> arrive to the same state. For example, if all events where to be reprocessed (e.g. <em>event sourcing</em>) several times, the final state should be the same. In addition, if one or more events were processed more than once the final state should also be the same, this means that event processing must be idempotent.</p> <p>Moreover, processing events can take a long time. If this effects the user experience <em>eager read derivation</em> could be used. However, this comes at a cost of having to handle rollbacks and potential data inconsistency.</p> <h2 id="events">Events<a class="headerlink" href="#events" title="Permanent link">¶</a></h2> <p>Since there is no defined event API, the current use cases define case-specific payloads and formats.</p> <h2 id="examples">Examples<a class="headerlink" href="#examples" title="Permanent link">¶</a></h2> <h3 id="change-notifications">Change notifications<a class="headerlink" href="#change-notifications" title="Permanent link">¶</a></h3> <p>The full design details can be found in the <a href="https://github.com/inveniosoftware/rfcs/blob/master/rfcs/framework-0062-change-notification.md">RFC</a>.</p> <p>InvenioRDM uses polyglot persistence: PostgreSQL and OpenSearch. Due to data retrieval and search requirements data is denormalized in OpenSearch. This means that when some entities are updated (e.g. user profiles) objects containing their denormalized information also need to be updated too (e.g. membership requests reflecting the user's username).</p> <p>To achieve this, the events or <em>change notifications</em> are registered in the unit of work. On an operation that will trigger an asynchronous Celery task with a custom payload on <code>post_commit</code>. This task will enrich the payload and trigger all the handlers registered for the record type that was changed. These handlers are service methods with custom signatures, and are configurable in the <code>invenio.cfg</code> file. The records have a revision id and use optimistic concurrency, therefore idempotence can be guaranteed.</p> <h3 id="statistics">Statistics<a class="headerlink" href="#statistics" title="Permanent link">¶</a></h3> <p>Statistics such as record view or file downloads are calculated using events. These events are emitted on the resources/views, by registering a message with a custom payload in a specific queue. Event indexers will then read these messages and carry out the appropriate operations (e.g. aggregations). Event indexers are running as celery beat tasks. To guarantee idempotence each event contains a unique identifier (e.g. timestamp + User-agent + IP address + URL), which guarantees that the event is captured/persisted only once.</p> <h3 id="mail-notifications">Mail notifications<a class="headerlink" href="#mail-notifications" title="Permanent link">¶</a></h3> <p>This feature has not been fully implemented yet. But progress can be followed and the full design details can be found in the <a href="https://github.com/inveniosoftware/rfcs/pull/66">RFC</a>.</p> <h3 id="webhooks">Webhooks<a class="headerlink" href="#webhooks" title="Permanent link">¶</a></h3> <div class="admonition info"> <p class="admonition-title">Not supported</p> <p>This feature has not been implemented yet</p> </div> <p>In order to enable interoperability and for other applications to build on top of InvenioRDM we can deliver webhook notifications to user-configured 3rd-party applications. These webhooks can be configured/filtered on the level of specific events (and their properties, e.g. "send a webhook for all records of type <code>software</code> added to the community <code>astronomy</code>").</p> <h3 id="audit-log">Audit log<a class="headerlink" href="#audit-log" title="Permanent link">¶</a></h3> <div class="admonition info"> <p class="admonition-title">Not supported</p> <p>This feature has not been implemented yet</p> </div> <p>For many operations it's useful to keep an audit log, so that administrators, community curators/managers, and users, can review past actions. This is both a security and "inspection" feature. Events can be mapped to actions, and logging them could be implemented via event handlers.</p> </article> </div> <script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script> </div> </main> <footer class="md-footer"> <nav class="md-footer__inner md-grid" aria-label="Footer" > <a href="../records/" class="md-footer__link md-footer__link--prev" aria-label="Previous: Records"> <div class="md-footer__button md-icon"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11z"/></svg> </div> <div class="md-footer__title"> <span class="md-footer__direction"> Previous </span> <div class="md-ellipsis"> Records </div> </div> </a> <a href="../notifications/" class="md-footer__link md-footer__link--next" aria-label="Next: Notifications"> <div class="md-footer__title"> <span class="md-footer__direction"> Next </span> <div class="md-ellipsis"> Notifications </div> </div> <div class="md-footer__button md-icon"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11z"/></svg> </div> </a> </nav> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <div class="md-copyright"> <div class="md-copyright__highlight"> Copyright © 2019-2024 CERN, Northwestern University and contributors. </div> Made with <a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener"> Material for MkDocs </a> </div> <div class="md-social"> <a href="https://github.com/inveniosoftware" target="_blank" rel="noopener" title="github.com" class="md-social__link"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 496 512"><path d="M165.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6m-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3m44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9M244.8 8C106.1 8 0 113.3 0 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C428.2 457.8 496 362.9 496 252 496 113.3 383.5 8 244.8 8M97.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1m-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7m32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1m-11.4-14.7c-1.6 1-1.6 3.6 0 5.9s4.3 3.3 5.6 2.3c1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2"/></svg> </a> </div> </div> </div> </footer> </div> <div class="md-dialog" data-md-component="dialog"> <div class="md-dialog__inner md-typeset"></div> </div> <script id="__config" type="application/json">{"base": "../../..", "features": ["navigation.tabs", "navigation.footer", "content.code.copy"], "search": "../../../assets/javascripts/workers/search.6ce7567c.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script> <script src="../../../assets/javascripts/bundle.525ec568.min.js"></script> </body> </html>

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