> ## Documentation Index
> Fetch the complete documentation index at: https://trigger-v3-fix-additional-files.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# HttpTrigger

> `HttpTrigger` allows you to trigger your Jobs from any webhooks.

There are two required steps to create an `HttpTrigger`:

1. Use [client.defineHttpEndpoint()](/sdk/triggerclient/instancemethods/define-http-endpoint) to create an `HttpEndpoint`.
2. Use [onRequest()](/sdk/http-endpoint#onrequest) to create an `HttpTrigger`.

You can see a complete example on this page.

<RequestExample>
  ```typescript
  const caldotcom = client.defineHttpEndpoint({
    //this should be unique inside your project
    id: "cal.com",
    //usually you'd use the domain name of the service
    source: "cal.com",
    //the icon is optional, it displays in the dashboard
    icon: "caldotcom",
    //this function is called when a webhook is received
    verify: async (request) => {
      //this is a useful helper function that can verify sha256 signatures
      //each API has a different header name
      return await verifyRequestSignature({
        request,
        //you can find the header name in the API's documentation
        headerName: "X-Cal-Signature-256",
        //you can find the secret in the Trigger.dev dashboard, on the HTTP endpoint page
        secret: process.env.CALDOTCOM_SECRET!,
        algorithm: "sha256",
      });
    },
  });

  client.defineJob({
    id: "http-caldotcom",
    name: "HTTP Cal.com",
    version: "1.0.0",
    enabled: true,
    //this create a Trigger using the caldotcom endpoint
    trigger: caldotcom.onRequest(),
    run: async (request, io, ctx) => {
      //note that when using HTTP endpoints, the first parameter is the request
      //you need to get the body, usually it will be json so you do:
      const body = await request.json();
      await io.logger.info(`Body`, body);
    },
  });
  ```
</RequestExample>