招摇过市验证器抱怨似乎格式良好的请求

我用的是 swagger-express-validator 验证小型API服务器的输入(使用Swagger 2格式)

path 定义如下

/api/v1/users:
  post:
    produces:
      - "application/json"
    parameters:
      - in: body
        name: ids
        description: Array of user ids to be processed
        required: true
        schema:
          $ref: "#/definitions/ArrayOfIds"
    responses:
      200:
        description: success

ArrayOfIds

Id:
  type: string
ArrayOfIds:
  type: array
  items:
    $ref: "#/definitions/Id"

向服务器发送post请求,如下所示:

POST /api/v1/users HTTP/1.1
Content-Type: application/json
Accept: application/json
Host: localhost:3000
Connection: close
User-Agent: Paw/3.1.7 (Macintosh; OS X/10.13.6) GCDHTTPRequest
Content-Length: 35

{
  "ids": ["abcd12345"]
}

导致错误

Request Invalid: POST /api/v1/users
 [ { keyword: 'type',
    dataPath: '',
    schemaPath: '#/type',
    params: { type: 'array' },
    message: 'should be array' } ]

但是我可以访问 req.body.ids ['1234abc'] .

你知道验证器为什么抱怨这个请求吗?我觉得很好。