Searches for items by zip code.

Request

• Base URL
  https://api.tradera.com (the document declares no server; this is the origin it was published from)
• URL
  https://api.tradera.com/v4/search/by-zip-code
• Auth
  API key in header X-App-Id and API key in header X-App-Key and API key in header X-User-Id and API key in header X-User-Token