added sentry to server code

server/config.js

@@ -25,6 +25,11 @@ const conf = convict({
   sentry_id: {
     format: String,
     default: 'https://cdf9a4f43a584f759586af8ceb2194f2@sentry.prod.mozaws.net/238',
+    env: 'P2P_SENTRY_CLIENT'
+  },
+  sentry_dsn: {
+    format: String,
+    default: 'localhost',
     env: 'P2P_SENTRY_DSN'
   },
   env: {
@@ -39,7 +44,8 @@ conf.validate({ allowed: 'strict' });
 
 const props = conf.getProperties();
 module.exports = props;
-
+console.log(props.sentry_dsn)
 module.exports.notLocalHost =
   props.env === 'production' &&
-  props.s3_bucket !== 'localhost';
+  props.s3_bucket !== 'localhost' &&
+  props.sentry_dsn !== 'localhost';

server/portal_server.js

@@ -7,9 +7,14 @@ const helmet = require('helmet');
 const bytes = require('bytes');
 const conf = require('./config.js');
 const storage = require('./storage.js');
+const Raven = require('raven');
 
 const notLocalHost = conf.notLocalHost;
 
+if (notLocalHost) {
+  Raven.config(conf.sentry_dsn).install();
+}
+
 const mozlog = require('./log.js');
 
 const log = mozlog('portal.server');
@@ -38,9 +43,9 @@ app.get('/', (req, res) => {
 
 app.get('/exists/:id', (req, res) => {
   const id = req.params.id;
-  storage.exists(id).then(doesExist => {
-    res.sendStatus(doesExist ? 200 : 404);
-  });
+  storage.exists(id).then(() => {
+    res.sendStatus(200);
+  }).catch(err => res.sendStatus(404));
 });
 
 app.get('/download/:id', (req, res) => {

server/storage.js

@@ -49,7 +49,7 @@ function filename(id) {
       if (!err) {
         resolve(reply);
       } else {
-        reject();
+        reject(err);
       }
     });
   });
@@ -58,7 +58,7 @@ function filename(id) {
 function exists(id) {
   return new Promise((resolve, reject) => {
     redis_client.exists(id, (rediserr, reply) => {
-      resolve(reply === 1);
+      reply === 1 && !rediserr ? resolve() : reject(rediserr);;
     });
   });
 }