sample http request in servicenow using RESTMessageV2 server side api tested running in ServiceNow Geneva Release as a background script in global scope

servicenow_sample_http_request.js

/**
 * sample http request in servicenow using RESTMessageV2 server side api
 * tested running in ServiceNow Geneva Release as a background script in global scope
 */
(function sample_http_request() {
    try {
        var request = new sn_ws.RESTMessageV2();
        request.setHttpMethod('get');
        request.setEndpoint('https://api.myjson.com/bins/4j985');
        
        // api.myjson.com/bins/4j985 is just a static JSON data store


        var response = request.execute();
        var httpResponseStatus = response.getStatusCode();
        var httpResponseContentType = response.getHeader('Content-Type');
        var parser = new global.JSONParser();
        var parsed = {};
        var httpResponseBody;


        gs.debug("http response status_code: " + httpResponseStatus);
        gs.debug("http response content-type: " + httpResponseContentType);


        //  if request is successful then parse the response body
        if (httpResponseStatus == 200 && httpResponseContentType == 'application/json') {
            httpResponseBody = response.getBody();

            //  parse JSON string returned from request into a json object
            parsed = parser.parse(httpResponseBody);

            // iterate over JSON object only printing the id property of JSON objects in results array
            for (var i = 0; i < parsed.results.length; i++) {
                gs.print('id: ' + parsed.results[i].id)
            }
        }
    }
    catch (ex) {
        var message = ex.getMessage();
        gs.debug(message);
    }
})();

Thanks for the post! What resources did you find to be most helpful when you were getting up to speed with ServiceNow development? To give you some context, I'm looking to write a custom script (Business Rule) that calls an external web service and updates ServiceNow fields based on the reply.

Thanks for this code. It was very helpful to solve a problem I had.