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<title data-rh="true">Webhook | Langflow Documentation</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://docs.langflow.org/component-webhook"><meta data-rh="true" property="og:locale" content="en"><meta data-rh="true" name="docusaurus_locale" content="en"><meta data-rh="true" name="docsearch:language" content="en"><meta data-rh="true" name="docusaurus_version" content="1.10.0"><meta data-rh="true" name="docusaurus_tag" content="docs-default-1.10.0"><meta data-rh="true" name="docsearch:version" content="1.10.0"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-1.10.0"><meta data-rh="true" property="og:title" content="Webhook | Langflow Documentation"><meta data-rh="true" name="description" content="The Webhook component defines a webhook trigger that runs a flow when it receives an HTTP POST request."><meta data-rh="true" property="og:description" content="The Webhook component defines a webhook trigger that runs a flow when it receives an HTTP POST request."><link data-rh="true" rel="icon" href="/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://docs.langflow.org/component-webhook"><link data-rh="true" rel="alternate" href="https://docs.langflow.org/component-webhook" hreflang="en"><link data-rh="true" rel="alternate" href="https://docs.langflow.org/component-webhook" hreflang="x-default"><link data-rh="true" rel="preconnect" href="https://UZK6BDPCVY-dsn.algolia.net" crossorigin="anonymous"><script data-rh="true" type="application/ld+json">{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Webhook","item":"https://docs.langflow.org/component-webhook"}]}</script><link rel="preconnect" href="https://www.google-analytics.com">
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<p>The <strong>Webhook</strong> component defines a webhook trigger that runs a flow when it receives an HTTP POST request.</p>
<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="trigger-the-webhook">Trigger the webhook<a href="#trigger-the-webhook" class="hash-link" aria-label="Direct link to Trigger the webhook" title="Direct link to Trigger the webhook" translate="no">​</a></h2>
<p>When you add a <strong>Webhook</strong> component to your flow, a <strong>Webhook curl</strong> tab is added to the flow&#x27;s <a class="" href="/concepts-publish#api-access"><strong>API Access</strong> pane</a>.
This tab automatically generates an HTTP POST request code snippet that you can use to trigger your flow through the <strong>Webhook</strong> component.
For example:</p>
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>curl -X POST \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> &quot;http://$LANGFLOW_SERVER_ADDRESS/api/v1/webhook/$FLOW_ID&quot; \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -H &#x27;Content-Type: application/json&#x27; \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -H &#x27;x-api-key: $LANGFLOW_API_KEY&#x27; \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -d &#x27;{&quot;any&quot;: &quot;data&quot;}&#x27;</span></div></div><br></code></div></div>
<p>For more information, see <a class="" href="/webhook">Trigger flows with webhooks</a>.</p>
<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="webhook-parameters">Webhook parameters<a href="#webhook-parameters" class="hash-link" aria-label="Direct link to Webhook parameters" title="Direct link to Webhook parameters" translate="no">​</a></h2>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Description</th></tr></thead><tbody><tr><td>data</td><td>Payload</td><td>Input parameter. Receives a payload from external systems through HTTP POST requests.</td></tr><tr><td>curl</td><td>curl</td><td>Input parameter. The curl command template for making requests to this webhook.</td></tr><tr><td>endpoint</td><td>Endpoint</td><td>Input parameter. The endpoint URL where this webhook receives requests.</td></tr><tr><td>output_data</td><td>JSON</td><td>Output parameter. The processed data from the webhook input. Returns an empty <a class="" href="/data-types#json"><code>JSON</code></a> object if no input is provided. If the input isn&#x27;t valid JSON, the <strong>Webhook</strong> component wraps it in a <code>payload</code> object so that it can be accepted as input to trigger the flow.</td></tr></tbody></table></div></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/chat-input-and-output"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Chat Input and Output</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/data-operations"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">JSON Operations</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 href="#trigger-the-webhook" class="table-of-contents__link toc-highlight">Trigger the webhook</a></li><li><a href="#webhook-parameters" class="table-of-contents__link toc-highlight">Webhook parameters</a></li></ul></div></div></div></div></main></div></div></div><footer class="theme-layout-footer footer"><div class="container container-fluid"><div class="row footer__links"><div class="theme-layout-footer-column col footer__col"><div class="footer__title"></div><ul class="footer__items clean-list"><li class="footer__item"><div class="footer-links">
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