Create mockrestapi.js

mockrestapi.js

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+const express = require('express');
+const fs = require('fs');
+const users = require('./mockdatas.json');
+
+const app = express();
+const PORT = 8000;
+
+// Middlewares - Plugin
+app.use(express.urlencoded({extended: false}));
+
+// Routes
+
+// Shows the entire users JSON
+app.get('/api/users', (req, res) => {
+    return res.json(users);
+});
+
+// Shows the unique user with respective id
+app.get('/api/users/:id', (req, res) => {
+    const id = Number(req.params.id);
+    const user = users.find((user) => user.id === id);
+    return res.json(user);
+});
+
+// Shows the users to the audience
+app.get('/users', (req, res) => {
+    const html = `
+    <ul>
+    ${users.map((user) => `<li>${user.first_name}</li>`)}
+    </ul>
+    `;
+    res.send(html);
+});
+
+// Add a new user
+app.post("/api/users", (req, res) => {
+    const body = req.body;
+    users.push({...body, id: users.length + 1});
+    fs.writeFile("./mockdatas.json", JSON.stringify(users), (err, data) => {
+        return res.json({status: "success", id: users.length});
+    });
+});
+
+// Delete a user by id
+app.delete('/api/users/:id', (req, res) => {
+    // Delete the user
+    const id = Number(req.params.id);
+    const index = users.findIndex(user => user.id === id);
+    if (index !== -1) {
+        users.splice(index, 1);
+        fs.writeFile("./mockdatas.json", JSON.stringify(users), (err, data) => {
+            return res.json({status: "success", message: `User with id ${id} deleted`});
+        });
+    } else {
+        return res.status(404).json({status: "error", message: `User with id ${id} not found`});
+    }
+});
+
+// Update a user by id
+app.patch('/api/users/:id', (req, res) => {
+    const id = Number(req.params.id);
+    const body = req.body;
+    const index = users.findIndex(user => user.id === id);
+    if (index !== -1) {
+        // Update the user with new data
+        users[index] = {...users[index], ...body};
+        // Rewrite the updated users array to the JSON file
+        fs.writeFile("./mockdatas.json", JSON.stringify(users), (err) => {
+            if (err) {
+                return res.status(500).json({status: "error", message: "Failed to update user data"});
+            }
+            return res.json({status: "success", message: `User with id ${id} updated`, updatedUser: users[index]});
+        });
+    } else {
+        return res.status(404).json({status: "error", message: `User with id ${id} not found`});
+    }
+});
+
+
+app.listen(PORT, () => console.log(`Server started at the port ${PORT}`));