Merge pull request #173 from avadev/JsonParseHandling

Handling JSON parse error

Author: shilpakhanal

lib/AvaTaxClient.js

@@ -93,7 +93,15 @@ export default class AvaTaxClient {
       }
       return res.text();
     }).then(text => {
-        var json = JSONbig.parse(text);
+        var json;
+        try {
+          json = JSONbig.parse(text);
+        } catch (e) {
+          let ex = new Error('The response is in an unexpected format. See details for the complete response.');
+          ex.target = 'Unknown';
+          ex.details = text;
+          throw ex;
+        }
         // handle error
         if (json.error) {
           let ex = new Error(json.error.message);