If the calendar couldn't be returned for whatever reason, exclude it …

…from the output

lib/get-user-event-tabs.js

@@ -32,13 +32,22 @@ module.exports = async (context, token, graphUser) => {
 
     context.log('user tabs', userTabs)
 
-    const tabEvents = await Promise.all(userTabs.map(async tab => ({
-      tabName: tab.TabName,
-      sortOrder: tab.SortOrder,
-      events: await getGraphEvents(context, token, userPrincipalName, tab.CalendarUrl)
-    })))
-
-    const sortedTabs = tabEvents.sort((a, b) => a.sortOrder - b.sortOrder)
+    const tabEvents = await Promise.all(userTabs.map(async tab => {
+      const events = await getGraphEvents(context, token, userPrincipalName, tab.CalendarUrl)
+      if (!events) {
+        context.log.error(['events', userPrincipalName, 'err', `No events found for: ${tab.CalendarUrl}`])
+        return null // will be filtered out later
+      }
+
+      return {
+        tabName: tab.TabName,
+        sortOrder: tab.SortOrder,
+        events
+      }
+    }))
+
+    // Remove calendar tabs that wasn't found, and sort them by sortOrder.
+    const sortedTabs = tabEvents.filter(events => !!events).sort((a, b) => a.sortOrder - b.sortOrder)
 
     context.log(sortedTabs)
 

lib/graph/get-graph-events.js

@@ -36,6 +36,6 @@ module.exports = async (context, token, userPrincipalName, graphUserUrl) => {
     return data.value
   } catch (err) {
     context.log.error(['events', 'get-graph-events', 'err', err])
-    throw err
+    return null
   }
 }