Add debug logging to recent subs API

Unclear why this isn’t working in production.

server/payments/subscription_handler.coffee

@@ -1,6 +1,7 @@
 # Not paired with a document in the DB, just handles coordinating between
 # the stripe property in the user with what's being stored in Stripe.
 
+log = require 'winston'
 MongoClient = require('mongodb').MongoClient
 mongoose = require 'mongoose'
 async = require 'async'
@@ -90,10 +91,15 @@ class SubscriptionHandler extends Handler
       userMap = {}
       userMap[user.id] = user.toObject() for user in users
 
+      try
         # Get conversion data directly from analytics database and add it to results
         url = "mongodb://#{config.mongo.analytics_host}:#{config.mongo.analytics_port}/#{config.mongo.analytics_db}"
+        log.debug "Analytics url: #{url}"
         MongoClient.connect url, (err, db) =>
-        return @sendDatabaseError(res, err) if err
+          if err
+            log.debug 'Analytics connect error: ' + err
+            return @sendDatabaseError(res, err)
+          log.debug 'Analytics established connection to analytics server.'
           userEventMap = {}
           db.collection('log').find({user: {$in: subscriberUserIDs}}).sort({_id: -1}).each (err, doc) =>
             if err
@@ -103,6 +109,7 @@ class SubscriptionHandler extends Handler
               userEventMap[doc.user] ?= []
               userEventMap[doc.user].push doc
             else
+              log.debug 'Analytics finished received docs, closing db connection. ' + Object.keys(userEventMap).length
               db.close()
               for userID, eventList of userEventMap
                 finishedPurchase = false
@@ -116,6 +123,9 @@ class SubscriptionHandler extends Handler
                       userMap[userID].conversion = event.properties.label
                       break
               @sendSuccess(res, userMap)
+      catch err
+        log.debug 'Analytics error:\n' + err
+        @sendSuccess(res, userMap)
 
   getSubscriptions: (req, res) ->
     # console.log 'subscription_handler getSubscriptions'