Vending Machine Mock

Getting started

1. Install node modules:

    npm install  
   

2. Configure the following variables in .env to match the following sample config

    APP_PORT = 3000
    MAX_SLOTS = 30
    MAX_ITEMS_PER_SLOT = 15
    ALLOWED_DENOMS = PENNY,NICKEL,DIME,QUARTER,HALFDOLLAR,DOLLAR
   

3. Run the application in development mode via:

    npm run start:dev
   

Using the application

1. Add items to a slot via POST /items with the following payload

    {
        "name": "Vegemite",
        "unitPrice": 12,
        "quantity": 100
    }
   

2. Fetch the list of slots and the items located therein via GET /slots

3. Update the items within a slot via PATCH /slots with the following optional body params

    {
        "quantity": 39,
        "unitPrice": 3
    }
   

4. Fetch the various denominations available in the vending machine coffer via GET /coins

5. Update the denominations available in the coffer via PATCH /coins and the following optional body params:

    {
        "dollarCount": 3,
        "halfDollarCount": 320,
        "quarterCount": 5,
        "dimeCount": 34,
        "nickelCount": 4,
        "pennyCount": 2
        
    }
   

6. Make purchases via POST /payments with a slotId and optional denominational amounts:

    {
        "dollarCount": 1000,
         "dimeCount": 34,
        "nickelCount": 4,
        "pennyCount": 2
        "slotId": 3
    }