diff --git a/index.js b/index.js
index f8adeeb..9c47f20 100644
--- a/index.js
+++ b/index.js
@@ -47,8 +47,8 @@ function userInactivity(name, id) {
 }
 
 
-// User data
-const users = [];
+// User and chat data
+const users = [], chats = [];
 // Incoming user connection
 app.post('/connect', (req, res) => {
     // Generate id, save user
@@ -219,7 +219,55 @@ app.post('/login', (req, res) => {
         }
 
     res.status(200).json({success});
-})
+});
+
+app.post('/chatInit', (req, res) => {
+    const { name, id, chat } = req.body;
+    const fullName = `${name}#${id}`;
+
+    let chatExists = false;
+    for (const c of chats)
+        if (c.name === chat) {
+            chatExists = true;
+            if (!c.users[fullName])
+                c.users[fullName] = [];
+            break;
+        }
+
+    if (!chatExists)
+        chats.push({
+            users: {},
+            name: chat
+        });
+
+    // Log message for debugging
+    if (consoleLogging)
+        console.log(`User with ID '${name}#${id}' joined chat '${chat}'.`);
+
+    res.status(200).send();
+});
+
+app.post('/sendGroup', (req, res) => {
+    const { name, id, message, chat } = req.body;
+
+    for (const c of chats)
+        if (c.name === chat) {
+            c.users[`${name}#${id}`].push(message);
+            break;
+        }
+
+    for (const u of users)
+        if (u.name === name && u.id === id) {
+            u.seen = new Date();
+            break;
+        }
+
+    // Log message for debugging
+    if (consoleLogging)
+        console.log(`User with ID '${name}#${id}' sent message '${message}' in '${chat}'.`);
+
+    res.status(200).send();
+});
 
 // Internal server error
 server.on('error', err => {