Get all stub mappings

Example response

{
  "mappings": [
    {
      "request": {
        "bodyPatterns": [
          {
            "equalToJson": "{ \"numbers\": [1, 2, 3] }"
          }
        ],
        "headers": {
          "Content-Type": {
            "equalTo": "application/json"
          }
        },
        "method": "POST",
        "url": "/some/thing"
      }
    }
  ],
  "meta": {
    "total": 4
  }
}