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itemprop="position" content="1"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Intro to Components</h1></header><h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="0323a728d8314767adb907b998036bb4">Component<a class="hash-link" aria-label="Direct link to Component" title="Direct link to Component" href="/components#0323a728d8314767adb907b998036bb4"></a></h2>
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<p>A component is a single building block within a flow. It consists of inputs, outputs, and parameters that define their functionality. These elements provide a convenient and straightforward way to compose LLM-based applications. Learn more about components and how they work below.</p>
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<p>During the flow creation process, you will notice handles (colored circles) attached to one or both sides of a component. These handles use distinct colors to indicate the types of inputs and outputs that can be interconnected. Hover over a handle to see connection details.</p>
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<p><img decoding="async" loading="lazy" src="/assets/images/565424296-c8af2ae30a99ab660ccd3f720e90016b.png" width="1102" height="1125" class="img_ev3q"></p>
|
||
<p>On the top right corner of the component, you'll find the a play button to run a component. Once it runs, a status icon appears and you can hover over that to visualize success or error messages. Start interacting with your AI by clicking the <strong>Playground</strong> at the bottom right of the workspace.</p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="7e3f2f8ff5074b2fb3eee97c9cfaabe7">Component Menu<a class="hash-link" aria-label="Direct link to Component Menu" title="Direct link to Component Menu" href="/components#7e3f2f8ff5074b2fb3eee97c9cfaabe7"></a></h3>
|
||
<p>Each component is unique, but they all have a menu bar at the top that looks something like this.</p>
|
||
<p><img decoding="async" loading="lazy" src="/assets/images/938852908-aeb8a9f6838598e728ec2b80e0d0839d.png" width="2000" height="938" class="img_ev3q"></p>
|
||
<p>It consists of options such as:</p>
|
||
<ul>
|
||
<li><strong>Code</strong> — displays the component's Python code. You can modify the code and save it.</li>
|
||
<li><strong>Advanced</strong> — See and adjust all parameters of a component.</li>
|
||
<li><strong>Freeze</strong> — After a component runs, lock its previous output state to prevent it from re-running.</li>
|
||
</ul>
|
||
<p>Click <strong>All</strong> (the "..." button) to see all options.</p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="ed7b3c34e0774b8a916b0e68821c9a7a">Output Preview<a class="hash-link" aria-label="Direct link to Output Preview" title="Direct link to Output Preview" href="/components#ed7b3c34e0774b8a916b0e68821c9a7a"></a></h3>
|
||
<p>Langflow includes an output visualizer for components that opens a pop-up screen. This allows you to easily inspect and monitor transmissions between components, providing instant feedback on your workflows.</p>
|
||
<p><img decoding="async" loading="lazy" src="/assets/images/987204819-871c02417b712a9cb7fc5f5df16b597a.png" width="1504" height="846" class="img_ev3q"></p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="b6430d4903df44f0ba4618a558c83d7b">Advanced Settings<a class="hash-link" aria-label="Direct link to Advanced Settings" title="Direct link to Advanced Settings" href="/components#b6430d4903df44f0ba4618a558c83d7b"></a></h3>
|
||
<p>Langflow components can be edited by clicking the <strong>Advanced Settings</strong> button.</p>
|
||
<p>Hide parameters with the <strong>Show</strong> button to reduce complexity and keep the workspace clean and intuitive for experimentation.</p>
|
||
<p>You can also double-click a component's name and description to modify those. Component descriptions accept markdown syntax.</p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="c3f5ed818e3b40ceb6534dc358e1a5f2">Group Components<a class="hash-link" aria-label="Direct link to Group Components" title="Direct link to Group Components" href="/components#c3f5ed818e3b40ceb6534dc358e1a5f2"></a></h3>
|
||
<p>Multiple components can be grouped into a single component for reuse. This is useful when combining large flows into single components (like RAG with a vector database, for example) and saving space.</p>
|
||
<ol>
|
||
<li>Hold <strong>Shift</strong> and drag to select components.</li>
|
||
<li>Select <strong>Group</strong>.</li>
|
||
<li>The components merge into a single component.</li>
|
||
<li>Double-click the name and description to change them.</li>
|
||
<li>Save your grouped component to in the sidebar for later use!</li>
|
||
</ol>
|
||
<p>[group video here]</p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="887fd587589448dc8c27336d1c235b9b">Component Version<a class="hash-link" aria-label="Direct link to Component Version" title="Direct link to Component Version" href="/components#887fd587589448dc8c27336d1c235b9b"></a></h3>
|
||
<p>A component's state is stored in a database, while sidebar components are like starter templates. As soon as you drag a component from the sidebar to the workspace, the two components are no longer in parity.</p>
|
||
<p>The component will keep the version number it was initialized to the workspace with. Click the <strong>Update Component</strong> icon (exclamation mark) to bring the component up to the <code>latest</code> version. This will change the code of the component in place so you can validate that the component was updated by checking its Python code before and after updating it.</p>
|
||
<p><img decoding="async" loading="lazy" src="/assets/images/263391508-9ce87f139f7f4bc4a0e174faa80eebc1.png" width="1879" height="1125" class="img_ev3q"></p></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/workspace-logs"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Logs</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/components-io"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Inputs & Outputs</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a class="table-of-contents__link toc-highlight" href="/components#0323a728d8314767adb907b998036bb4">Component</a><ul><li><a class="table-of-contents__link toc-highlight" href="/components#7e3f2f8ff5074b2fb3eee97c9cfaabe7">Component Menu</a></li><li><a class="table-of-contents__link toc-highlight" href="/components#ed7b3c34e0774b8a916b0e68821c9a7a">Output Preview</a></li><li><a class="table-of-contents__link toc-highlight" href="/components#b6430d4903df44f0ba4618a558c83d7b">Advanced Settings</a></li><li><a class="table-of-contents__link toc-highlight" href="/components#c3f5ed818e3b40ceb6534dc358e1a5f2">Group Components</a></li><li><a class="table-of-contents__link toc-highlight" href="/components#887fd587589448dc8c27336d1c235b9b">Component Version</a></li></ul></li></ul></div></div></div></div></main></div></div></div><div id="ms-floating-button" class="ms-fixed ms-bottom-4 ms-right-8 ms-z-[100] ms-flex ms-flex-col ms-items-end hover:ms-cursor-pointer"><div class="ms-relative ms-mb-4"><div style="background-color:#f6f6f6" class="ms-absolute -ms-bottom-1 ms-right-6 -ms-z-10 ms-h-4 ms-w-4 ms-rotate-45"></div><div style="background-color:#f6f6f6" class="ms-z-10 ms-flex ms-items-center ms-justify-center ms-rounded-lg ms-px-3 ms-py-2"><p style="color:#000000;margin:0" class="ms-text-sm">Hi, how can I help you?</p></div></div><div style="background-color:#f6f6f6" class="ms-flex ms-h-16 ms-w-16 ms-flex-col ms-items-center ms-justify-center ms-self-end ms-rounded-full ms-p-2 ms-transition"><div class="ms-rotate-0 ms-flex ms-h-full ms-w-full ms-transform ms-cursor-pointer ms-items-center ms-justify-center ms-rounded-full ms-transition-all ms-delay-75 ms-duration-100 ms-ease-in-out"><div style="color:#000000;font-size:22px;width:48px;height:48px;margin:0px;padding:0px;display:flex;align-items:center;justify-content:center;text-align:center"><img src="/img/chain.png" style="width:40px"></div></div></div><div></div></div></div>
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