Calling REST message from widget

[kiri265]

I am not able get information regarding how to call Outbound REST message from widget Please help

[ChrisBurks]

If you're talking about using the ServiceNow Outbound REST Message then you would follow the documentation on scripting outbound rest messages in the server script of the widget:

Scripting outbound REST

Example using the OOB Yahoo Finance endpoint that is setup in the Outbound REST Message application using the "get" method:

var r = new sn_ws.RESTMessageV2('Yahoo Finance', 'get');

r.setStringParameter('symbol', 'GOOG');

var response = r.execute();

var responseBody = response.getBody();

var httpStatus = response.getStatusCode();

Example building a REST call from scratch without the use of the Outbound REST Message application using a "post" method and basic auth:

var method = "post";

var endpoint = 'https://www.your_endpoint_'

  var rm = new sn_ws.RESTMessageV2();

  rm.setHttpMethod(method);

  rm.setEndpoint(endpoint);

  var body = { some JSON stuff };

  rm.setRequestHeader("Content-type", "application/json");

  rm.setRequestBody(body);

  var response = rm.execute();

  var responseBody = new JSON().decode(response.getBody());

---------

If you want to use an xmlhttprequest call from the client controller section of the widget then you would just do the same as you would a normal angularjs application by injecting $http into the client controller:

AngularJS

function($http){

      $http.get('url').then(function(response){

                          console.log(response);

      });

      var options = {

                      method: 'POST',

                      url: 'http://your.endpoint',

                      data: { data stuff in here },

                      headers: {

                                  'Content-Type': 'application/json;charset=UTF-8'

                      };

        $http(options).then(function(response){

                      console.log(response);

        });

}

[strawberrybeard]

Kiran, I actually recently put up a post on how to do this. It can be found here How to use a REST API with RESTMessageV2 in Service Portal. I hope this helps out.

[Abhijeet Upadhy]

Hello Kiri

Use this call back timeout code to wait for the response till the "response_back" variable gets a value.

Script:

$http(options).then(function(response){

                      var response_back = response;

        });

$scope.call_back_function();

$scope.call_back_function= function()
{
if(response_back == "")
{
$window.setTimeout($scope.call_back_function, 100);
}
else

{

//use response_back here

}

Thanks

Abhijeet Upadhyay