change name action for api

stubs/api/change/index.js

@@ -0,0 +1,46 @@
+const changeRouter = require('express').Router();
+
+module.exports = changeRouter;
+
+const { users, getUserFromDB } = require('../db');
+
+const jwt = require("jsonwebtoken");
+
+
+changeRouter.post('/nickname', (req, res) => {
+    const { id, newNickname } = req.body;
+    console.log("Request nickname in /change:", id);
+
+    const user = getUserFromDB(id);
+
+    // Invalid identification
+    if (!user) {
+        res.status(401).send({message: 'Invalid credentials (id)'});
+    }
+
+    // Delete the old one
+    const index = users.findIndex(item => item.id === id);
+    if (index !== -1) {
+        users.splice(index, 1); // Remove the old user
+    }
+
+    // Insert updated
+    users.push({
+        "nickname": newNickname,
+        "password": user.password,
+        "id": user.id
+    });
+
+    res.status(200).send({});
+});
+
+changeRouter.post('/password', (req, res) => {
+    const { id, newPassword } = req.body;
+    // ...
+});
+
+changeRouter.delete('/:id', (req, res) => {
+    const { id } = req.params;
+    // ...
+});
+