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<a class="forkme" href="https://github.com/laurent22/joplin"><img src="https://joplinapp.org/images/ForkMe.png"/></a>
<a href="https://joplinapp.org"><h1 class="title"><img class="title-icon" src="https://joplinapp.org/images/Icon512.png"><span class="title-text">Joplin</span></h1></a>
<p class="sub-title">An open source note taking and to-do application with synchronisation capabilities</p>
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<li class=""><a href="https:&#x2F;&#x2F;joplinapp.org/" title="Home"><i class="fa fa-home"></i></a></li>
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<div id="toc"><ul>
<li>
<p>Applications</p>
<ul>
<li><a href="https://joplinapp.org/desktop/">Desktop application</a></li>
<li><a href="https://joplinapp.org/mobile/">Mobile applications</a></li>
<li><a href="https://joplinapp.org/terminal/">Terminal application</a></li>
<li><a href="https://joplinapp.org/clipper/">Web Clipper</a></li>
</ul>
</li>
<li>
<p>Support</p>
<ul>
<li><a href="https://discourse.joplinapp.org">Joplin Forum</a></li>
<li><a href="https://joplinapp.org/markdown/">Markdown Guide</a></li>
<li><a href="https://joplinapp.org/e2ee/">How to enable end-to-end encryption</a></li>
<li><a href="https://joplinapp.org/conflict/">What is a conflict?</a></li>
<li><a href="https://joplinapp.org/debugging/">How to enable debug mode</a></li>
<li><a href="https://joplinapp.org/faq/">FAQ</a></li>
</ul>
</li>
<li>
<p>Joplin API</p>
<ul>
<li><a href="https://joplinapp.org/api/overview/">Joplin API Overview</a></li>
<li><a href="https://joplinapp.org/api/get_started/plugins/">Plugin development</a></li>
<li><a href="https://joplinapp.org/api/tutorials/toc_plugin/">Plugin tutorial</a></li>
<li><a href="https://joplinapp.org/plugin/api/classes/joplin.html">Plugin API</a></li>
<li><a href="https://joplinapp.org/api/references/rest_api/">Data API documentation</a></li>
</ul>
</li>
<li>
<p>Development</p>
<ul>
<li><a href="https://github.com/laurent22/joplin/blob/dev/BUILD.md">How to build the apps</a></li>
<li><a href="https://joplinapp.org/spec/e2ee/">End-to-end encryption spec</a></li>
<li><a href="https://joplinapp.org/spec/history/">Note History spec</a></li>
<li><a href="https://joplinapp.org/spec/sync_lock/">Sync Lock spec</a></li>
<li><a href="https://joplinapp.org/spec/plugins/">Plugin Architecture spec</a></li>
</ul>
</li>
<li>
<p>Google Summer of Code 2020</p>
<ul>
<li><a href="https://joplinapp.org/gsoc2020/index/">Google Summer of Code 2020</a></li>
<li><a href="https://joplinapp.org/gsoc2020/ideas/">Project Ideas</a></li>
</ul>
</li>
<li>
<p>About</p>
<ul>
<li><a href="https://joplinapp.org/changelog/">Changelog (Desktop App)</a></li>
<li><a href="https://joplinapp.org/changelog_cli/">Changelog (CLI App)</a></li>
<li><a href="https://joplinapp.org/stats/">Stats</a></li>
<li><a href="https://joplinapp.org/donate/">Donate</a></li>
</ul>
</li>
</ul>
</div>
<h1>Getting started with plugin development<a name="getting-started-with-plugin-development" href="#getting-started-with-plugin-development" class="heading-anchor">🔗</a></h1>
<p>In this article you will learn the basic steps to build and test a plugin in Joplin.</p>
<p>## Setting up your environment</p>
<p>First you need to setup your environment:</p>
<ul>
<li>Make sure you have <a href="https://nodejs.org/">Node.js</a> and <a href="https://git-scm.com">git</a> installed.</li>
<li>Install Joplin and run it in development mode.</li>
</ul>
<p>You will also need to have Joplin installed and running in development mode, which we'll describe later.</p>
<p>But first install Yeoman and the Joplin Plugin Generator:</p>
<pre><code>npm install -g yo generator-joplin
</code></pre>
<p>Then to create the plugin, run:</p>
<pre><code>yo joplin
</code></pre>
<p>This will create the basic scafolding of the plugin. At the root of it, there is a number of configuration files which you normally won't need to change. Then the <code>src/</code> directory will contain your code. By default, the project uses TypeScript, but you are free to use plain JavaScript too - eventually the project is compiled to plain JS in any case.</p>
<p>The <code>src/</code> directory also contains a <a href="https://github.com/laurent22/joplin/blob/dev/readme/api/references/plugin_manifest/">manifest.json</a> file, which you can edit to set various information about the plugin, such as its name, homepage URL, etc.</p>
<h2>Building the plugin<a name="building-the-plugin" href="#building-the-plugin" class="heading-anchor">🔗</a></h2>
<p>The file <code>src/index.ts</code> already contain some basic code meant for testing the plugin. In particular it contains a call to <a href="https://joplinapp.org/plugin/api/classes/joplinplugins.html">joplin.plugins.register</a>, which all plugins should call to register the plugin. And an <code>onStart()</code> event handler, which will be executed by Joplin when the plugin starts.</p>
<p>To try this basic plugin, compile the app by running the following from the root of the project:</p>
<pre><code>npm run dist
</code></pre>
<p>Doing so should compile all the files into the <code>dist/</code> directory. This is from here that Joplin will load the plugin.</p>
<h2>Testing the plugin<a name="testing-the-plugin" href="#testing-the-plugin" class="heading-anchor">🔗</a></h2>
<p>In order to test the plugin, you might want to run Joplin in <a href="https://github.com/laurent22/joplin/blob/dev/readme/api/references/development_mode/">Development Mode</a>. Doing so means that Joplin will run using a different profile, so you can experiment with the plugin without risking to accidentally change or delete your data.</p>
<p>Finally, in order to test the plugin, open the Setting screen, then navigate the the <strong>Plugins</strong> section, and add the plugin path in the <strong>Development plugins</strong> text field. For example, if your plugin project path is <code>/home/user/src/joplin-plugin</code>, add this in the text field.</p>
<p>Restart the app, and Joplin should load the plugin and execute its <code>onStart</code> handler. If all went well you should see the test message in the plugin console: &quot;Test plugin started!&quot;.</p>
<h1>Next steps<a name="next-steps" href="#next-steps" class="heading-anchor">🔗</a></h1>
<ul>
<li>You might want to check the <a href="https://github.com/laurent22/joplin/blob/dev/readme/api/tutorials/toc_plugin/">plugin tutorial</a> to get a good overview of how to create a complete plugin and how to use the plugin API.</li>
<li>For more information about the plugin API, check the <a href="https://joplinapp.org/plugin/api/classes/joplin.html">Plugin API reference</a>.</li>
</ul>
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