Check whether node, npm installed node -v npm -v

Install dependencies npm install

Start login API server npm start

You can now send a POST request to http://127.0.0.1:4011/api/login

Behavior:

• if body is: { "username": "alan", "password": "alain" } -> 200
• any other username/password -> 401