We are making a request to an REST API.

The API expects one of the objects to have the following JSON structure: 

"properties" : {

    { "key_1" : "value_1" }, 

    { "key_2" : "value_2" } 

}, hence generate the "properties"  as a list of items that contain a key/value pair as values like the example below. And then, use JSON_Objectify in the OnBeforeRequest to get the above expected result.

"properties" : [

    { 

       "key" : "key_1" ,

      "value" : "value_1" 

    }, 

    { 

       "key" : "key_2" ,

      "value" : "value_2" 

    },

]

The issue here, is when we call the JSON_Objectify in the OnBeforeRequest, it throws the error "Object reference not set to an instance of an object." but if I manually pass the request as a JSON in the demo, it works. Could you please help us understand what could be the issue here?

The path we used is: "tools.function.parameters.properties"

Thanks.

In the attachments you may find "request-body.txt" which is the request example the action gets as input parameter and the "request-body-json.txt", which is the same content as .txt, but in JSON format.