fix(modules): use objectPath when accessing MTC props to avoid undefi…

…ned erros

lib/common/util/modules.js

@@ -1,16 +1,24 @@
+import objectPath from 'object-path'
+
 import { getConfigProperty } from './config'
 
 export const getFeed = (feeds, id) => {
   // console.log(feeds, id)
   // TODO: move use_extension to extension enabled??
   const useMtc = getConfigProperty('modules.gtfsapi.use_extension') === 'mtc'
-  const feed = feeds ? feeds.find(f => useMtc ? f.externalProperties.MTC.AgencyId === id : f.id === id) : null
+  const feed = feeds
+    ? feeds.find(f => useMtc ? objectPath.get(f, 'externalProperties.MTC.AgencyId') === id : f.id === id)
+    : null
   return feed
 }
 
 export const getFeedId = (feed) => {
   const useMtc = getConfigProperty('modules.gtfsapi.use_extension') === 'mtc'
-  return !feed ? null : useMtc ? feed.externalProperties.MTC.AgencyId : feed.id
+  return !feed
+    ? null
+    : useMtc
+    ? objectPath.get(feed, 'externalProperties.MTC.AgencyId')
+    : feed.id
 }
 
 export const getAlertsUrl = () => {