How to correctly set setRequestBody as JSON in RESTMessageV2 POST

dclayne · ‎07-26-2017

I am working on a scoped application that sends an HTTP POST via REST using RESTMessageV2 via an asynchronous business rule.

Assume the current.partner.data_in_request field contains the following string value:

{

"input": {

"context": {

"system": {

"dialog_request_counter": 170,

"dialog_stack": {

"dialog_node": ""

},

"dialog_turn_counter": 170

}

},

"text": "Hey"

}

Also assume the following code snippet:

var rm = new sn_ws.RESTMessageV2();

rm.setRequestBody(current.partner.data_in_request);

I'm getting an HTTP 200 response code from the web service; however, it isn't properly reading the request body. I've tried parsing it (i.e. JSON.parse(current.partner.data_in_request)), I've tried stringifying it (i.e. JSON.stringify(current.partner.data_in_request)), and I've tried forcing string conversion (i.e. current.partner.data_in_request.toString()), but nothing seems to work.

My question is, is it possible to set the setRequestBody value as JSON in ServiceNow, or do I need to use some other structure for the request body?

RajanMurkute · ‎12-27-2019

You need to first convert your JSON object to sting and then set to the request-body.

Please try the following -

//==

var req = new sn_ws.RESTMessageV2();
req.setEndpoint('https://--- your end-point here');
req.setHttpMethod('POST');

//Authentication
var username = user; // your user-name
var pw = password; //your password
req.setBasicAuth(user,password);

//Set Headers
req.setRequestHeader('Content-Type','application/json');

//Create payload (JSON with key-value pair)

var myObj = {

"input": {

"context": {

"system": {

"dialog_request_counter": 170,

"dialog_stack": {

"dialog_node": ""

},

"dialog_turn_counter": 170

}

},

"text": "Hey"

}

} ;

//Convert the object to string and set it to Request Body-
req.setRequestBody(JSON.stringify(myObj));

//Execute the request
req.execute(); // if successful, it will return http status = 200 or 201,

// Get handle on response-body
var responseBody = response.getBody();

//Get http status (Success: 200/201 or Failure: 400/401/500)
var httpStatus = response.getStatusCode();

// Do the rest of the processing, if httpStatus = 200 || 201

if(httpStatus == 200 || httpStatus == 201){
//Parse response-body
var parsedJSON = JSON.parse(responseBody);

current.field1 = parsedJSON.something1;

current.field2 = parsedJSON.something2

//.... etc.

}

Please mark it as 'Correct', if it works.

View solution in original post

Hena · ‎10-26-2021

Yeah it works