Commit 1 

chore: init project with TypeScript and tsconfig

Commands 

mkdir backend && cd backend
npm init -y
npm install --save-dev typescript @types/node
npx tsc --init
mkdir src

Update tsconfig.json

{
  "compilerOptions": {
    "target": "es2017",
    "module": "commonjs",
    "rootDir": "./src",
    "outDir": "./dist",
    "esModuleInterop": true,
    "strict": true
  }
}

Create .gitignore

node_modules
dist

Commit 2 

chore: add ts-node-dev for development

Commands 

npm install --save-dev ts-node-dev

Update package.json:

"scripts": {
  "dev": "ts-node-dev --respawn src/index.ts"
}

Verification

Create src/index.ts:

const message: string = "TypeScript is working";
console.log(message);

Run the development server:

npm run dev

Expected output:

TypeScript is working