set response.parsedBody as-is if the reponse body sent by the service is a string instead of a JSON object.

Changelog.md

@@ -1,4 +1,7 @@
 # Changelog
+## 2.0.1 - 2019-07-30
+- In `getOperationResponse()` if the `resource` is of type `string` and we get an error while performing `JSON.parse()` then instead of letting the error be thrown we set the `resource` as-is as the `response.parsedBody`
+
 ## 2.0.0 - 2019-07-15
 - Bumping the version to `2.0.0` since the underlying dependency `@azure/ms-rest-js` has moved to `2.x.x` range.
   - `@azure/ms-rest-js@2.x.x` is using `node-fetch` instead of `axios` as the http client for node.js scenario.

lib/lroPollStrategy.ts

@@ -86,7 +86,13 @@ export abstract class LROPollStrategy {
       result.parsedBody = response.parsedBody;
     } else if (typeof resource.valueOf() === "string") {
       result.bodyAsText = resource;
+      try {
         result.parsedBody = JSON.parse(resource);
+      } catch (err) {
+        // There was an error parsing the JSON. Hence we set the resource as-is. Most likely, the
+        // resource is a string that was already parsed.
+        result.parsedBody = resource;
+      }
     } else {
       result.bodyAsText = JSON.stringify(resource);
       result.parsedBody = resource;

lib/util/constants.ts

@@ -27,4 +27,4 @@ export const DEFAULT_LANGUAGE = "en-us";
  * @const
  * @type {string}
  */
-export const msRestAzureVersion = "2.0.0";
+export const msRestAzureVersion = "2.0.1";

package.json

@@ -5,7 +5,7 @@
     "email": "azsdkteam@microsoft.com",
     "url": "https://github.com/Azure/ms-rest-azure-js"
   },
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "Isomorphic Azure client runtime for Typescript/node.js/browser javascript client libraries generated using AutoRest",
   "tags": [
     "isomorphic",
@@ -41,7 +41,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "@azure/ms-rest-js": "^2.0.3",
+    "@azure/ms-rest-js": "^2.0.4",
     "tslib": "^1.10.0"
   },
   "devDependencies": {