Implemented calls to Mail API

Author: jasonjoh

app.js

@@ -9,6 +9,7 @@ require('dotenv').config();
 
 var index = require('./routes/index');
 var authorize = require('./routes/authorize');
+var mail = require('./routes/mail');
 
 var app = express();
 
@@ -26,6 +27,7 @@ app.use(express.static(path.join(__dirname, 'public')));
 
 app.use('/', index);
 app.use('/authorize', authorize);
+app.use('/mail', mail);
 
 // catch 404 and forward to error handler
 app.use(function(req, res, next) {

package-lock.json

@@ -6,6 +6,7 @@
     "start": "node ./bin/www"
   },
   "dependencies": {
+    "@microsoft/microsoft-graph-client": "^1.0.0",
     "body-parser": "~1.18.2",
     "cookie-parser": "~1.4.3",
     "debug": "~2.6.9",

package.json

@@ -12,8 +12,6 @@ router.get('/', async function(req, res, next) {
   if (accessToken && userName) {
     parms.user = userName;
     parms.debug = `User: ${userName}\nAccess Token: ${accessToken}`;
-
-    // If token was refreshed, save the new values in the session
   } else {
     parms.signInUrl = authHelper.getAuthUrl();
     parms.debug = parms.signInUrl;

routes/index.js

@@ -0,0 +1,48 @@
+var express = require('express');
+var router = express.Router();
+var authHelper = require('../helpers/auth');
+var graph = require('@microsoft/microsoft-graph-client');
+
+/* GET home page. */
+router.get('/', async function(req, res, next) {
+  let parms = { title: 'Inbox', active: { inbox: true } };
+
+  const accessToken = await authHelper.getAccessToken(req.cookies, res);
+  const userName = req.cookies.graph_user_name;
+
+  if (accessToken && userName) {
+    parms.user = userName;
+
+    // Initialize Graph client
+    const client = graph.Client.init({
+      authProvider: (done) => {
+        done(null, accessToken);
+      }
+    });
+
+    try {
+      // Get the 10 newest messages from inbox
+      const result = await client
+      .api('/me/mailfolders/inbox/messages')
+      .top(10)
+      .select('subject,from,receivedDateTime,isRead')
+      .orderby('receivedDateTime DESC')
+      .get();
+
+      parms.messages = result.value;
+    } catch (err) {
+      parms.message = 'Error retrieving messages';
+      parms.error = { status: `${err.code}: ${err.message}` };
+      parms.debug = JSON.stringify(err.body, null, 2);
+      res.render('error', parms);
+    }
+    
+  } else {
+    // Redirect to home
+    res.redirect('/');
+  }
+
+  res.render('mail', parms);
+});
+
+module.exports = router;

routes/mail.js

@@ -0,0 +1,17 @@
+<h2>Inbox</h2>
+<table class="table">
+  <thead class="thead-light">
+    <th scope="col">From</th>
+    <th scope="col">Subject</th>
+    <th scope="col">Received</th>
+  </thead>
+  <tbody>
+    {{#each messages}}
+      <tr>
+        <td title="{{this.from.emailAddress.address}}">{{this.from.emailAddress.name}}</td>
+        <td>{{this.subject}}</td>
+        <td>{{this.receivedDateTime}}</td>
+      </tr>
+    {{/each}}
+  </tbody>
+</table>