TypeScript Express tutorial #1

Starting up the project

mkdir express-ts
cd express-ts

npm init -y
pnpm i express
pnpm i -D typescript ts-node node nodemon @type/node @types/express

edit package.json

{
    ...
    "script": {
    "d": "nodemon -e ts  --exec ts-node ./src/server.ts",
    "dev": "ts-node ./src/server.ts"
    }
    ...
}

# generate tsconfig.json
npx tsc --init

reference below tsconfig.json content

{
    "compilerOptions": {
        "sourceMap": true,
        "target": "es2017",
        "outDir": "./dist",
        "baseUrl": "./src"
    },
    "include": [
        "src/**/*.ts"
    ],
    "exclude": [
        "node_modules"
    ]
}

mkdir src
cd src
touch server.ts

server.ts

import  express from 'express';
 
const app = express();
 
app.get('/', (request, response) => {
  response.send('Hello world!');
});
 
app.listen(5001, () => {
  console.log('Example app listening on port 5001!');
});

try run it your terminal

pnpm d

# try or open by browser or postman or apifox or other tool
curl http://localhost:50001