Getting object Object in output in executeScript in Nifi?

Question

I am trying to store an API response in attribute myAttr in extractText processor but when I am trying to print the value of myAttr in ExecuteScript it is giving [object Object] in output and not printing the entire response of the API.

I think it can be done EvaluateJsonPath processor but I couldn't understand how.

Execute Script:

var reasonId = []
try {
  var reasonId = JSON.parse(flowFile.getAttribute('SubReason1'));
  if (flowFile != null) {
    if(reasonId != undefined){
      flowFile = session.putAttribute(flowFile, 'myAttr', reasonId);
    }
    else{
      session.transfer(flowFile, REL_FAILURE)
    }
    session.transfer(flowFile, REL_SUCCESS)
  }
}

Output is in myAttr, the expected output is the entire response of the API.

Answer 1

Try

JSON.stringify(myAttr)

The output [object Object] is telling you that myAttr contains an object. JSON.stringify() should convert the object to a readable String, just like JSON.parse() converts the JSON String to an object.