correct-apricot•6mo ago

Workflow api request with extracted variables

How i can send extracted variables in the api request node in the body payload section ?

13 Replies

correct-apricotOP•6mo ago

@Vapi @Duckie @Vapi Team

loud-coral•6mo ago

Extract variables in a Conversation node, then use {{variable_name}} in the API Request node’s body payload; map API responses to output variables for use in later nodes..

loud-coral•6mo ago

https://docs.vapi.ai/workflows/quickstart https://docs.vapi.ai/assistants/dynamic-variables

Workflows quickstart | Vapi

Build a simple agent that greets users and gathers basic information using Vapi workflows.

Variables | Vapi

Personalize assistant messages with dynamic and default variables

correct-apricotOP•6mo ago

thanks for your response, super clear on how to include them in the api request, not so sure on how to map api responses to output variable

loud-coral•6mo ago

By defining them in the API Request node’s Response Mapping section using JSON paths like, subscription_id → data.id, then use {{subscription_id}} in later nodes..

correct-apricotOP•6mo ago

thank youu one more question , how i can send the call id in the request ?

Kyle•6mo ago

The payload to your webhook URL contains a call object with the call ID. You can extract the call ID from the payload.

correct-apricotOP•6mo ago

this is the payload i get , no call id [ { "headers": { "host": "n8n-aibaze.onrender.com", "user-agent": "node", "content-length": "77", "accept": "/", "accept-encoding": "gzip, br", "accept-language": "*", "authorization": "test", "baggage": "sentry-environment=production,sentry-public_key=a0021577936aec367b16615ad816c078,sentry-trace_id=949fb076a1174bc0af69e7dd91c08010", "cdn-loop": "cloudflare; loops=1", "cf-connecting-ip": "44.247.30.108", "cf-ipcountry": "US", "cf-ray": "951a65d57cc8ef5f-PDX", "cf-visitor": "{"scheme":"https"}", "content-type": "application/json", "render-proxy-ttl": "4", "rndr-id": "81fb3e0a-18c6-46d4", "sec-fetch-mode": "cors", "sentry-trace": "949fb076a1174bc0af69e7dd91c08010-9a7c150ab17e9dd4", "traceparent": "00-760823de7a2a5049f0555f84088c5e5e-09fcbe6553f2b571-01", "true-client-ip": "44.247.30.108", "x-forwarded-for": "44.247.30.108, 172.68.175.33", "x-forwarded-proto": "https", "x-request-start": "1750245630384738" }, "params": {}, "query": {}, "body": { "scheduled_date": "2023-06-20T00:00:00", "candidate_email": "thomas@gmail.com" }, "webhookUrl": "https://n8n-aibaze.onrender.com/webhook/281d9a17-3839-4f09-92", "executionMode": "production" } ]

Kyle•6mo ago

Here is an example Vapi Payload structure:

{
  "message": {
    "type": "status-update",
    "status": "in-progress",
    "call": {
      "id": "f47ac10b-58cc-4372-a567-0e02b2c3d479",  // ← Call ID here
      "orgId": "your-org-id",
      "assistantId": "your-assistant-id",
      "customer": {
        "number": "+1234567890"
      },
      "metadata": {
        "customId": "your-custom-id"
      },
      "startedAt": "2023-06-20T10:30:00.000Z",
      // ... other call properties
    }
  }
}

{
  "message": {
    "type": "status-update",
    "status": "in-progress",
    "call": {
      "id": "f47ac10b-58cc-4372-a567-0e02b2c3d479",  // ← Call ID here
      "orgId": "your-org-id",
      "assistantId": "your-assistant-id",
      "customer": {
        "number": "+1234567890"
      },
      "metadata": {
        "customId": "your-custom-id"
      },
      "startedAt": "2023-06-20T10:30:00.000Z",
      // ... other call properties
    }
  }
}

correct-apricotOP•6mo ago

yes that is what i was expecting, but the snippet i shared is what im actually getting !

Kyle•6mo ago

This looks like a webhook from a different system. Could you please provide a screenshot of the configuration where this is configured in n8n?

metropolitan-bronze•2mo ago

Did you ever figure this out? I have the same problem. My api request payload looks just like yours. I can't get it to use any of the default variables in the api request either, the payload that I receive just contains the literal variable name (i.e., "{{now}}" or "{{customer.number}}", etc) instead of the value that is supposed to replace the variable. The difference in payload structure seems to be that the OP is showing the payload of an API Request and Kyle is showing the payload of a tool call. The id is not present in an API Request

Kyle•3w ago

I sincerely apologize for the delayed response to your support request. We implemented better tracking for support tickets to ensure timely responses going forward, but due to a technical limitation, this only applies to tickets created after this past week. I'm closing this older ticket, but if your issue still needs attention, please: Reply with 'REOPEN' or Email support@vapi.ai with any updates I'll personally ensure your new request gets prompt attention. Thank you for your patience. Best regards, Vapi Support Team

Workflow api request with extracted variables

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