Commit 

chore: setup Express and add /health route

Commands 

npm install express
npm install --save-dev @types/express

Files

📄 src/app.ts

import express from "express";

const app = express();

app.get("/health", (_req, res) => {
  res.status(200).json({ status: "ok" });
});

export default app;

📄 src/server.ts

import app from "./app";

const PORT = process.env.PORT || 3001;

app.listen(PORT, () => {
  console.log(`Server running at http://localhost:${PORT}`);
});

📄 Update package.json (in "scripts")

"scripts": {
  "dev": "tsx watch src/server.ts"
}

Verification

  1. Run the development server: 
npm run dev
  1. Open your browser or use a tool like Postman: 
GET http://localhost:3001/health
  1. Expected response: 
{ "status": "ok" }

Next step:

chore: add Jest and Supertest with health route test