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alphar0001
alphar0001
November 10, 2025
Question

Best Way to mock or stub an integration ( How to set httpResponse object on a dictionary on the fly) inside an expression rule

  • November 10, 2025
  • 2 replies
  • 0 views

Hi,

       I am trying to stub / mock an api response for an http Integration in a expression rule . Basically I am trying to a create a dictionary like what we get on a successful response from an api like below structure

Dictionary

    • success  -   true(Boolean)
        • result   -    HttpResponse

        I am able to get first key (success - true) using a!fromJson , but cant find a way to set a successful HttpResponse object to result key through  the code . I tried to use a!httpResponse , but it creates a webapiResponse .

        I can see an IntegrationError Object to create such an object for error scenarios. But why there is no IntegrationSuccess object similar to this ?

        a!fromJson(
  "{""success"":true}"
)

         

        2 replies

        stefanhelzle0001
        stefanhelzle0001
        November 11, 2025

        Did you try to create a normal Appian dictionary?

        {success: true, body: {more goes here}}

          shubhama926776
          shubhama926776
          November 11, 2025

          You cannot manually construct a true HttpResponse object. It's only created by the system when an integration executes.
          Define your mock as a plain dictionary structure that mimics the HttpResponse shape:

          a!localVariables(
  local!mockResponse: a!map(
    statusCode: 200,
    headers: a!map(),
    body: /* your mock data */
  ),
  /* use local!mockResponse in your logic */
)


          Then write your consuming code to handle either a real HttpResponse or your mock dictionary structure interchangeably.

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