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OOrder API returns HTTP 400 empty response (need backend provisioning check)

Python SDK
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  • M

    Hi Team,

    I am facing an issue with the order placement API even though all mandatory headers are correctly included.

    Authentication works perfectly and I can generate the Bearer token.
    The problem is ONLY with the order placement route:

    https://apiconnect.angelone.in/rest/secure/angelbroking/order/v1/placeOrder

    The response is always:
    HTTP/1.1 400
    Content-Length: 0
    (No JSON response from gateway)

    This means the request is being blocked at the API Gateway level before it reaches the backend order service.

    I am including these headers exactly as per docs:
    X-API-Key,
    X-PrivateKey,
    Authorization: Bearer <token>,
    X-ClientLocalIP,
    X-ClientPublicIP,
    X-MACAddress,
    X-UserType,
    X-SourceID,
    Accept and Content-Type.

    Manual order placement through the Angel One app works fine.
    Only automatic API-based order placement gives a 400 empty response.

    This looks like an API key provisioning / routing / mapping issue for my client code.

    Client Code: K296995

    Please escalate this to the SmartAPI backend team and check API key mapping for the order microservice.

    Thank you.

    0 A 1 Reply
  • A

    Hi @mani1090

    Please test this API in postman still API getting failed means share the cURL here.

    0