npm install -g aws-cdk
cdk --version
npm install -g typescript

cdk init app --language typescript

npm init -y
npx tsc --init

npm install express aws-sdk dotenv
npm install -D ts-node ts-node-dev typescript @types/express @types/dotenv @types/node nodemon
npm install -D eslint @typescript-eslint/parser @typescript-eslint/eslint-plugin

cd backend
npm install
npm run start

# watch mode
npm run start:dev

cd backend
docker build -t backend_image .
docker run -p 3000:3000 --name backend_app backend_image

npm run build
cdk bootstrap
cdk synth
cdk deploy --require-approval never
cdk destroy -f