fix token expired state

backend/helpers/amazon.js

@@ -35,17 +35,20 @@ var refreshTokens = function () {
     };
 
     request (options, function (error, response, body) {
-      if (error) reject (error);
-      parsedResponse = JSON.parse (body);
-      if (parsedResponse.refresh_token)
-        return databaseHelper.updateTokens (
-          parsedResponse.refresh_token,
-          parsedResponse.access_token,
-          parsedResponse.expires_in
-        );
-      console.log ('Token refresh failed');
-      console.log (body);
-      reject (body);
+      if (error) {
+        reject (error);
+      }else{
+        parsedResponse = JSON.parse (body);
+        if (parsedResponse.refresh_token){
+          databaseHelper.updateTokens(parsedResponse.refresh_token, parsedResponse.access_token, parsedResponse.expires_in).then(()=>{
+            resolve();
+          }).catch(e=>{
+            reject(e);
+          });
+        }else{
+          reject (body);
+        }
+      }
     });
   });
 };