POST /item

{
  "name": "Tractor",
  "userId": "5e13...",
  "image": {
    "url": "http://s3.amazonaws...",
    "height": 560,
    "width": 300
  },
  "manufacturer": "John Deere",
  "compatibility": "Compatible with...",
  "description": "A great fucking tractor",
  "condition": "Well Used",
  "year": "2009"
}