init

src/main.ts

@@ -0,0 +1,18 @@
+import express, { json } from 'express';
+import { handleError } from './utils/errorHandler'
+import 'dotenv/config'
+
+import { router } from './routes'
+
+const app = express();
+
+const port = process.env.PORT || 3000;
+
+app.use(json({ limit: '100kb' }))
+
+app.use(router)
+
+app.use(handleError)
+app.listen(port, () => {
+    console.log(`App is running on port http://localhost:${port}`);
+})

src/routes/index.ts

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+import { Router } from "express";
+
+import pkg from '../../package.json'
+
+import { router as usersRouter } from './users'
+
+export const router = Router();
+
+router.get('/healthcheck', (req, res) => void res.send({ ok: true, version: pkg.version }));
+
+router.use('/users', usersRouter)

src/routes/users/index.ts

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+import { Router } from "express";
+import { Validator } from "express-json-validator-middleware";
+
+export const router = Router();
+
+const { validate } = new Validator({ });
+
+const user = {
+    type: "object",
+    required: ["name"],
+    properties: {
+      name: {
+        type: "string"
+      }
+    },
+  };
+
+let users = [
+    { id: 1, name: 'John' },
+    { id: 2, name: 'Jane' },
+];
+
+const addUser = (user) => new Promise<void>((res, rej) => {
+    setTimeout(() => {
+        // rej(new Error('user is not a spoon'));
+        users.push(user);
+        res();
+    }, 100)
+})
+
+router.get('/', (req, res) => void res.send(users));
+router.post('/', async (req, res) => {
+    await addUser(req.body);
+    res.send(users);
+})
+
+router.delete('/:id', validate(''), (req, res, next) => {
+    users = users.filter(user => user.id !== Number(req.params.id));
+    res.send(users);
+})

src/utils/errorHandler.ts

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+export const handleError = (error, req, res, next) => {
+    res.send({ error: error.message })
+}