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<h1 id="invoke-ui">Invoke UI<a class="headerlink" href="#invoke-ui" title="Permanent link">#</a></h1>
<p>Invoke's UI is made possible by many contributors and open-source libraries. Thank you!</p>
<h2 id="dev-environment">Dev environment<a class="headerlink" href="#dev-environment" title="Permanent link">#</a></h2>
<p>Follow the <a href="../dev-environment/">dev environment</a> guide to get set up. Run the UI using <code>pnpm dev</code>.</p>
<h2 id="package-scripts">Package scripts<a class="headerlink" href="#package-scripts" title="Permanent link">#</a></h2>
<ul>
<li><code>dev</code>: run the frontend in dev mode, enabling hot reloading</li>
<li><code>build</code>: run all checks (dpdm, eslint, prettier, tsc, knip) and then build the frontend</li>
<li><code>lint:dpdm</code>: check circular dependencies</li>
<li><code>lint:eslint</code>: check code quality</li>
<li><code>lint:prettier</code>: check code formatting</li>
<li><code>lint:tsc</code>: check type issues</li>
<li><code>lint:knip</code>: check for unused exports or objects</li>
<li><code>lint</code>: run all checks concurrently</li>
<li><code>fix</code>: run <code>eslint</code> and <code>prettier</code>, fixing fixable issues</li>
<li><code>test:ui</code>: run <code>vitest</code> with the fancy web UI</li>
</ul>
<h2 id="type-generation">Type generation<a class="headerlink" href="#type-generation" title="Permanent link">#</a></h2>
<p>We use <a href="https://github.com/openapi-ts/openapi-typescript">openapi-typescript</a> to generate types from the app's OpenAPI schema. The generated types are committed to the repo in <a href="https://github.com/invoke-ai/InvokeAI/blob/main/invokeai/frontend/web/src/services/api/schema.ts">schema.ts</a>.</p>
<p>If you make backend changes, it's important to regenerate the frontend types:</p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="nb">cd</span><span class="w"> </span>invokeai/frontend/web<span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span>python<span class="w"> </span>../../../scripts/generate_openapi_schema.py<span class="w"> </span><span class="p">|</span><span class="w"> </span>pnpm<span class="w"> </span>typegen
</code></pre></div>
<p>On macOS and Linux, you can run <code>make frontend-typegen</code> as a shortcut for the above snippet.</p>
<h2 id="localization">Localization<a class="headerlink" href="#localization" title="Permanent link">#</a></h2>
<p>We use <a href="https://github.com/i18next/react-i18next">i18next</a> for localization, but translation to languages other than English happens on our <a href="https://hosted.weblate.org/engage/invokeai/">Weblate</a> project.</p>
<p>Only the English source strings (i.e. <code>en.json</code>) should be changed on this repo.</p>
<h2 id="vscode">VSCode<a class="headerlink" href="#vscode" title="Permanent link">#</a></h2>
<h3 id="example-debugger-config">Example debugger config<a class="headerlink" href="#example-debugger-config" title="Permanent link">#</a></h3>
<div class="highlight"><pre><span></span><code><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a>{
<a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a> &quot;version&quot;: &quot;0.2.0&quot;,
<a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a> &quot;configurations&quot;: [
<a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a> {
<a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a> &quot;type&quot;: &quot;chrome&quot;,
<a id="__codelineno-1-6" name="__codelineno-1-6" href="#__codelineno-1-6"></a> &quot;request&quot;: &quot;launch&quot;,
<a id="__codelineno-1-7" name="__codelineno-1-7" href="#__codelineno-1-7"></a> &quot;name&quot;: &quot;Invoke UI&quot;,
<a id="__codelineno-1-8" name="__codelineno-1-8" href="#__codelineno-1-8"></a> &quot;url&quot;: &quot;http://localhost:5173&quot;,
<a id="__codelineno-1-9" name="__codelineno-1-9" href="#__codelineno-1-9"></a> &quot;webRoot&quot;: &quot;${workspaceFolder}/invokeai/frontend/web&quot;
<a id="__codelineno-1-10" name="__codelineno-1-10" href="#__codelineno-1-10"></a> }
<a id="__codelineno-1-11" name="__codelineno-1-11" href="#__codelineno-1-11"></a> ]
<a id="__codelineno-1-12" name="__codelineno-1-12" href="#__codelineno-1-12"></a>}
</code></pre></div>
<h3 id="remote-dev">Remote dev<a class="headerlink" href="#remote-dev" title="Permanent link">#</a></h3>
<p>We've noticed an intermittent timeout issue with the VSCode remote dev port forwarding.</p>
<p>We suggest disabling the editor's port forwarding feature and doing it manually via SSH:</p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a>ssh<span class="w"> </span>-L<span class="w"> </span><span class="m">9090</span>:localhost:9090<span class="w"> </span>-L<span class="w"> </span><span class="m">5173</span>:localhost:5173<span class="w"> </span>user@host
</code></pre></div>
<h2 id="contributing-guidelines">Contributing Guidelines<a class="headerlink" href="#contributing-guidelines" title="Permanent link">#</a></h2>
<p>Thanks for your interest in contributing to the Invoke Web UI!</p>
<p>Please follow these guidelines when contributing.</p>
<h2 id="check-in-before-investing-your-time">Check in before investing your time<a class="headerlink" href="#check-in-before-investing-your-time" title="Permanent link">#</a></h2>
<p>Please check in before you invest your time on anything besides a trivial fix, in case it conflicts with ongoing work or isn't aligned with the vision for the app.</p>
<p>If a feature request or issue doesn't already exist for the thing you want to work on, please create one.</p>
<p>Ping <code>@psychedelicious</code> on <a href="https://discord.gg/ZmtBAhwWhy">discord</a> in the <code>#frontend-dev</code> channel or in the feature request / issue you want to work on - we're happy to chat.</p>
<h2 id="code-conventions">Code conventions<a class="headerlink" href="#code-conventions" title="Permanent link">#</a></h2>
<ul>
<li>This is a fairly complex app with a deep component tree. Please use memoization (<code>useCallback</code>, <code>useMemo</code>, <code>memo</code>) with enthusiasm.</li>
<li>If you need to add some global, ephemeral state, please use [nanostores] if possible.</li>
<li>Be careful with your redux selectors. If they need to be parameterized, consider creating them inside a <code>useMemo</code>.</li>
<li>Feel free to use <code>lodash</code> (via <code>lodash-es</code>) to make the intent of your code clear.</li>
<li>Please add comments describing the "why", not the "how" (unless it is really arcane).</li>
</ul>
<h2 id="commit-format">Commit format<a class="headerlink" href="#commit-format" title="Permanent link">#</a></h2>
<p>Please use the <a href="https://www.conventionalcommits.org/en/v1.0.0/">conventional commits</a> spec for the web UI, with a scope of "ui":</p>
<ul>
<li><code>chore(ui): bump deps</code></li>
<li><code>chore(ui): lint</code></li>
<li><code>feat(ui): add some cool new feature</code></li>
<li><code>fix(ui): fix some bug</code></li>
</ul>
<h2 id="tests">Tests<a class="headerlink" href="#tests" title="Permanent link">#</a></h2>
<p>We don't do any UI testing at this time, but consider adding tests for sensitive logic.</p>
<p>We use <code>vitest</code>, and tests should be next to the file they are testing. If the logic is in <code>something.ts</code>, the tests should be in <code>something.test.ts</code>.</p>
<p>In some situations, we may want to test types. For example, if you use <code>zod</code> to create a schema that should match a generated type, it's best to add a test to confirm that the types match. Use <code>tsafe</code>'s assert for this.</p>
<h2 id="submitting-a-pr">Submitting a PR<a class="headerlink" href="#submitting-a-pr" title="Permanent link">#</a></h2>
<ul>
<li>Ensure your branch is tidy. Use an interactive rebase to clean up the commit history and reword the commit messages if they are not descriptive.</li>
<li>Run <code>pnpm lint</code>. Some issues are auto-fixable with <code>pnpm fix</code>.</li>
<li>Fill out the PR form when creating the PR.</li>
<li>It doesn't need to be super detailed, but a screenshot or video is nice if you changed something visually.</li>
<li>If a section isn't relevant, delete it.</li>
</ul>
<h2 id="other-docs">Other docs<a class="headerlink" href="#other-docs" title="Permanent link">#</a></h2>
<ul>
<li><a href="workflows/">Workflows - Design and Implementation</a></li>
<li><a href="state-management/">State Management</a></li>
</ul>
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