simply return random number
- install NodeJS on your host machine
- run command 'npm install'
- run command 'node server.js' in this folder
- replace the 'http://example.com' with 'http://host-ip:port-number' in client app. example:(http://192.168.1.5:8081)
- you can also test the server use 'http://127.0.0.1:8081/randhand' from a browser on host machine