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<ol class="chapter"><li class="chapter-item expanded affix "><li class="part-title">Introduction</li><li class="chapter-item expanded "><a href="../welcome_and_overview.html">Welcome and Overview</a></li><li class="chapter-item expanded affix "><li class="part-title">Setup</li><li class="chapter-item expanded "><a href="../setup/installation.html">Installation</a></li><li class="chapter-item expanded "><a href="../postgres.html">Using Postgres</a></li><li class="chapter-item expanded "><a href="../reverse_proxy.html">Configuring a Reverse Proxy</a></li><li class="chapter-item expanded "><a href="../setup/forward_proxy.html">Configuring a Forward/Outbound Proxy</a></li><li class="chapter-item expanded "><a href="../turn-howto.html">Configuring a Turn Server</a></li><li class="chapter-item expanded "><a href="../delegate.html">Delegation</a></li><li class="chapter-item expanded affix "><li class="part-title">Upgrading</li><li class="chapter-item expanded "><a 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<h1 id="modules"><a class="header" href="#modules">Modules</a></h1>
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<p>Synapse supports extending its functionality by configuring external modules.</p>
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<h2 id="using-modules"><a class="header" href="#using-modules">Using modules</a></h2>
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<p>To use a module on Synapse, add it to the <code>modules</code> section of the configuration file:</p>
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<pre><code class="language-yaml">modules:
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- module: my_super_module.MySuperClass
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config:
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do_thing: true
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- module: my_other_super_module.SomeClass
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config: {}
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</code></pre>
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<p>Each module is defined by a path to a Python class as well as a configuration. This
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information for a given module should be available in the module's own documentation.</p>
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<p><strong>Note</strong>: When using third-party modules, you effectively allow someone else to run
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custom code on your Synapse homeserver. Server admins are encouraged to verify the
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provenance of the modules they use on their homeserver and make sure the modules aren't
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running malicious code on their instance.</p>
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<p>Also note that we are currently in the process of migrating module interfaces to this
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system. While some interfaces might be compatible with it, others still require
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configuring modules in another part of Synapse's configuration file.</p>
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<p>Currently, only the following pre-existing interfaces are compatible with this new system:</p>
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<ul>
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<li>spam checker</li>
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<li>third-party rules</li>
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<li>presence router</li>
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