Accessing URL Query Parameters from POST Webhook in Decisions

RichterBell
RichterBell
in Flows
Webhooks Flow Screenshot.png

I’m setting up a webhook subscription and have exposed a flow as a webhook using Service Integration in Decisions. Microsoft sends a POST request to my webhook for subscription validation, including a validationToken as a URL query parameter (not in the headers or body). I can’t access this validationToken in the flow’s input or request headers. How can I capture the validationToken from the request URL so I can return it in the response as required by Microsoft Graph?

Comments

  • MalikB_Decisions
    MalikB_Decisions

    Hello,

    You can use the "Post to Flow Handler" behavior when exposing your flow as a webhook. This handler allows you to access the raw URL or query string parameters from POST requests, including the validationToken.

    Please refer to our Post to Flow Handler Behavior documentation page.

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