Simple deploy typescript application to Heroku

https://dev.to/hte305/simple-deploy-typescript-application-to-heroku-5b6g

Step 1. Making project root directory

mkdir simple-deploy-app-typescript-to-heroku

Step 2. Initialize your directory as a node project

automatic create new file package.json

cd simple-deploy-app-typescript-to-heroku
npm init -y 

Step 3. Install required dependency using NPM

npm i @types/express @types/node express nodemon ts-node typescript

Step 4. Configuring Typescript

automatic for create new file tsconfig.json

sudo npm install typescript -g

tsc --init 

Then add new line below compilerOptions object.

"include" : [
    "src/**/*.ts"   /* Include every ts file in source folder */
],
"exclude" : [
    "node_modules"  /* exclude everything in  node_modules */
]

Step 5. Setting up server

Edit file package.json

"compilerOptions" : {
  //**/
},
"scripts": {
    "start": "ts-node src/config/server.ts",
    "dev": "nodemon -x ts-node src/config/server.ts"
},

Step 6. Setting up server

Server script would live in src/config/server.ts

Create a new simple server with express now. src/config/server.ts

import express from 'express';
const app = express()
const PORT : string|number = process.env.PORT || 4000;

app.use("*",(req, res) =>{
    res.send("<h1>Welcome to your simple server! Awesome right</h1>");
});

app.listen(PORT,() => console.log(`hosting @${PORT}`));

npm run dev