Why am I getting Event validation failed when defining query params in a Godspeed HTTP event?

Question

I’m creating a simple HTTP GET event in the Godspeed framework. My goal is to accept a query parameter called name and return a response. However, when I define the event YAML with type: string directly inside the params, the server throws a validation error saying must have required property 'schema'. I expected this to work, but it seems godspeed' param framework uses a different format. What is the correct way to define query parameters in godspeed events so they pass validation?

http.get./greet:
  fn: greet_user
  params:
    - name: name
      in: query
      required: true
      type: string
  responses:
    200:
      content:
        application/json:
          schema:
            type: string

But when I run godspeed serve, the framework logs:

Event validation failed for http.get./greet
[ { instancePath: '/params/0', message: "must have required property 'schema'" } ]

It seems to reject my params block. Am I defining it wrong? How should query parameters be structured in Godspeed's Param framework ?

Please provide enough code so others can better understand or reproduce the problem. — Community
– Community Bot, Commented Oct 1 at 8:44

Sakshi Arora · Accepted Answer · 2025-10-01 10:03:47Z

2

The error happens because godspeed's param framework validates all events against its internal schema, and for params it requires a schema object — not just type.
Your YAML should look like this:

http.get./greet:
  fn: greet_user
  authn: false
  params:
    - name: name
      in: query
      required: true
      schema:
        type: string
  responses:
    200:
      content:
        application/json:
          schema:
            type: string

answered Oct 1 at 10:03

Sakshi Arora

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