tweak log update

lib/logs.js

@@ -18,11 +18,11 @@ const NUM_RESULTS = 1000
  * @returns {date} Last timestamp
  */
 function getLastSeen (deviceId) {
-  const sql = `select timestamp from logs
+  const sql = `select id, timestamp from logs
   where device_id=$1
   order by timestamp desc limit 1`
   return db.oneOrNone(sql, [deviceId])
-  .then(log => log ? log.timestamp : null)
+  .then(log => log ? {timestamp: log.timestamp, id: log.id} : null)
 }
 
 /**

lib/routes.js

@@ -177,7 +177,7 @@ function getCustomerWithPhoneCode (req, res, next) {
 
 function getLastSeen (req, res, next) {
   return logs.getLastSeen(req.deviceId)
-  .then(timestamp => res.json({lastSeen: timestamp}))
+  .then(r => res.json(r))
   .catch(next)
 }
 
@@ -266,7 +266,9 @@ function authorize (req, res, next) {
   .catch(next)
 }
 
-const skip = (req, res) => _.includes(req.path, ['/poll', '/state']) && res.statusCode === 200
+const skip = (req, res) => _.includes(req.path, ['/poll', '/state', '/logs']) &&
+  res.statusCode === 200 &&
+  req.method === 'GET'
 
 const configRequiredRoutes = [
   '/poll',