Add headers to rest response (microsoft#105)

* Add headers to rest response

* Add test

Author: Danny McCormick

lib/RestClient.ts

@@ -7,7 +7,8 @@ import util = require("./Util");
 
 export interface IRestResponse<T> {
     statusCode: number,
-    result: T | null
+    result: T | null,
+    headers: Object
 }
 
 export interface IRequestOptions {
@@ -200,6 +201,7 @@ export class RestClient {
             const response: IRestResponse<T> = {
                 statusCode: statusCode,
                 result: null,
+                headers: {}
             };
 
             // not found leads to null obj returned
@@ -226,6 +228,7 @@ export class RestClient {
                         response.result = obj;
                     }
                 }
+                response.headers = res.message.headers;
             }
             catch (err) {
                 // Invalid resource (contents not json);  leaving result obj null

make.js

@@ -96,7 +96,7 @@ target.samples = function () {
     run('tsc');
     run('node samples.js');
     run('npm install');
-    run('npm start');
+    run('npm run react');
     popd();
     console.log('done');
 }

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "typed-rest-client",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "description": "Node Rest and Http Clients for use with TypeScript",
   "main": "./RestClient.js",
   "scripts": {

package.json

@@ -45,8 +45,11 @@ describe('Rest Tests', function () {
                 url: 'http://microsoft.com',
                 data: null,
                 json: null
+            }, {
+                'my-header': 'my-header-val'
             });
         let restRes: restm.IRestResponse<HttpData> = await _rest.get<HttpData>('http://microsoft.com');
+        assert(restRes.headers['my-header'] === 'my-header-val', 'Response should include headers');
         assert(restRes.statusCode == 200, "statusCode should be 200");
         assert(restRes.result && restRes.result.url === 'http://microsoft.com');
     });