Description of PR that completes issue here...

Changes

Requests / Responses

If this PR contains code that defines a new request/response, or changes an existing one, please put the JSON representations here.

Request

POST /products Creates a new product

{
    "title": "Kite",
    "product_type_id": 1,
    "description": "Red. It flies high.",
    "quantity": 5
}

Response

HTTP/1.1 201 OK

{
    "id": 54,
    "title": "Kite",
    "product_type_id": 1,
    "description": "Red. It flies high.",
    "quantity": 5
}

Description of how to test code...