8tomat8 / slotMachine

Implementation of simple Slot Machine

Implemented according to the description from here https://wizardofodds.com/games/slots/atkins-diet/

IMPLEMENTATION DOES NOT COVERED WITH TESTS

This implementation was tested only manually. To use it in production add unit tests.

Usage

To build and run this app you need to have installed Go. All dependencies are included into repository.

git clone https://github.com/8tomat8/slotMachine.git
cd slotMachine
go build -o app github.com/8tomat8/slotMachine/cmd/server
./app

Application has only one HTTP endpoint to create a spin

POST /api/machines/atkins-diet/spins

Request body should be a properly signed JWT token with claims:

{
    uid: "any string",  // user id
    chips: 10000,       // chips balance
    bet: 100           // bet size
}

Default sign key for JWT is: Foo-Bar-Baz-42

You can replace it with your own using environment variable SLOTS_JWT_SECRET

Valid example of request that must work with default settings:

curl -vvv -XPOST http://127.0.0.1:8080/api/machines/atkins-diet/spins -d 'eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOiJhbnkgc3RyaW5nIiwiY2hpcHMiOjEwMDAwLCJiZXQiOjEwMH0.odtrW91_wZTpPZ7FvczUKenLL-hCgHoNLipmuxQN96AdYZpZDHVZeeZ2HyqD4Z5TighNNsuN7gILcZe5-u6Cmw'

Response:

{
    "total": 50, 
    "spins": [
        {
        "Type": "main", 
        "Total": 50, 
        "Stops": [15, 12, 18, 5, 19]
        }
    ], 
    "jwt": "eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOiJhbnkgc3RyaW5nIiwiY2hpcHMiOjk5NTAsImJldCI6MTAwfQ.zGPNIZ29oo14gae3xkYAHw8WhfcvhAXUdeZreQ0qwuO8-UUw4UilO2uetDKbFzD3bJhC8D8xpV9jJwJppar8Hg"
}

Where jwt value is updated and signed request data

Additional

• To see debug logs set env. var. SLOTS_ENVIRONMENT=dev
• To change API host and port use env. var. SLOTS_API_ADDR=0.0.0.0:8080