application/vnd.storyserver+json errors

error.json

{
  "uri": "http://0.0.0.0:9233/api/v1/users",
  "links": {
    "about": {
      "href": "http://path.to/user/resource/1"
    },
    "describes": {
      "href": "http://path.to/describes"
    },
    "help": {
      "href": "http://path.to/help"
    }
  },
  "statusCode": 409,
  "statusMessage": "Conflict",
  "error": {
    "id": "a682135b-cb0c-404b-a26b-c5c0e9145cb7",
    "message": "Username is not available.",
    "name": "UniqueViolation",
    "length": 204,
    "severity": "ERROR",
    "code": "23505",
    "detail": "Key (username)=(bob) already exists.",
    "schema": "public",
    "table": "users",
    "constraint": "users_username_unique",
    "file": "nbtinsert.c",
    "line": "406",
    "routine": "_bt_check_unique",
    "isdbError": true
  }
}

errors.json

{
  "uri": "http://0.0.0.0:9233/api/v1/signin",
  "links": {
    "about": {
      "href": "http://path.to/user/resource/1"
    },
    "describes": {
      "href": "http://path.to/describes"
    },
    "help": {
      "href": "http://path.to/help"
    }
  },
  "statusCode": 400,
  "statusMessage": "Bad Request",
  "errors": [
    {
      "uri": "http://0.0.0.0:9233/api/v1/signin",
      "links": {
        "about": {
          "href": "http://path.to/user/resource/1"
        },
        "describes": {
          "href": "http://path.to/describes"
        },
        "help": {
          "href": "http://path.to/help"
        }
      },
      "error": {
        "message": "Username is required.",
        "name": "Required"
      }
    },
    {
      "uri": "http://0.0.0.0:9233/api/v1/signin",
      "links": {
        "about": {
          "href": "http://path.to/user/resource/1"
        },
        "describes": {
          "href": "http://path.to/describes"
        },
        "help": {
          "href": "http://path.to/help"
        }
      },
      "error": {
        "message": "Password is required.",
        "name": "Required"
      }
    }
  ]
}