Typescript quick setup

project.sh

# https://dev.to/theghostyced/setting-up-a-node-typescript-project-in-under-4-minutes-4gk2
npm init -y
# ts config
touch tsconfig.json
echo '{
  "compilerOptions": {
    "target": "es6",
    "module": "commonjs",
    "rootDir": "src",
    "outDir": "dist",
    "sourceMap": true,
    "resolveJsonModule": true,
    "lib": ["es6", "dom"],
    "esModuleInterop": true
  },
  "include": [
    "src/**/*.ts"
  ],
  "exclude": [
    "node_modules"
  ]
}' > tsconfig.json

# index
mkdir src && touch  src/app.ts
echo "import Koa from \"koa\";
import Router from 'koa-router';
const router = new Router()
const dotenv = require(\"dotenv\");
dotenv.config();
const app = new Koa();

router.get(\"/\", ctx => {
  ctx.body = \"hello\";
});

app.use(router.routes());
app.use(router.allowedMethods());
app.listen(3000);
export default app;
" > src/app.ts

# dependencies
npm i -D typescript 
npm i -D ts-node 
npm i -D nodemon
npm i dotenv koa koa-router koa-body --save
npm i -D @types/koa @types/dotenv @types/koa-router

echo "modify package.json to contain"
echo "\"scripts\": {
    \"start\": \"tsc && node dist/index.js\",
    \"dev\": \"nodemon --watch 'src/**/*.ts' --exec 'ts-node' .src/app.ts\",
    \"test\": \"echo \"Error: no test specified\" && exit 1\"
  },"