例如，客户端尝试发送如下表单字段：

* `username`: `Rick`
* `password`: `Portal Gun`
* `extra`: `Mr. Poopybutthole`

他们将收到一条错误响应，表明字段 `extra` 不被允许：

```json
{
    "detail": [
        {
            "type": "extra_forbidden",
            "loc": ["body", "extra"],
            "msg": "Extra inputs are not permitted",
            "input": "Mr. Poopybutthole"
        }
    ]
}
```

## 总结 { #summary }

      .map {
        val suffix = it.path.replace("${prefix}samples/guide/src/main/java/", "")
        suffix
          .replace("(.*)\\.java".toRegex()) { mr ->
            mr.groupValues[1].replace('/', '.')
          }.replace("(.*)\\.kt".toRegex()) { mr ->
            mr.groupValues[1].replace('/', '.') + "Kt"
          }
      }.sorted()
  }
}

@Disabled("Don't run by default")
@Tag("Slow")
class AllMainsTest {

		closer: func() {
			dec.Reset(nil)
			s2DecPool.Put(dec)
			readMsgpReaderPoolPut(mr)
		},
		creator: func() error {
			v, err := mr.ReadByte()
			if err != nil {
				return err
			}
			switch v {
			case 1, 2:
			default:
				return fmt.Errorf("metacacheReader: Unknown version: %d", v)
			}
			return nil
		},
	}
}

func (r *metacacheReader) checkInit() {

                                                <label for="bulkFile" class="mb-2 mr-2"><la:message
                                                        key="labels.backup_bulk_file"/></label>
                                                <div class="mb-2 mr-sm-2"><input type="file" id="bulkFile"
                                                                                 name="bulkFile"

t}.m-0{margin:0!important}.mt-0,.my-0{margin-top:0!important}.mr-0,.mx-0{margin-right:0!important}.mb-0,.my-0{margin-bottom:0!important}.ml-0,.mx-0{margin-left:0!important}.m-1{margin:.25rem!important}.mt-1,.my-1{margin-top:.25rem!important}.mr-1,.mx-1{margin-right:.25rem!important}.mb-1,.my-1{margin-bottom:.25rem!important}.ml-1,.mx-1{margin-left:.25rem!important}.m-2{margin:.5rem!important}.mt-2,.my-2{margin-top:.5rem!important}.mr-2,.mx-2{margin-right:.5rem!important}.mb-2,.my-2{margin-bottom...

* `username`: `Rick`
* `password`: `Portal Gun`
* `extra`: `Mr. Poopybutthole`

They will receive an error response telling them that the field `extra` is not allowed:

```json
{
    "detail": [
        {
            "type": "extra_forbidden",
            "loc": ["body", "extra"],
            "msg": "Extra inputs are not permitted",
            "input": "Mr. Poopybutthole"
        }
    ]
}
```

		case healMRFMetaVersionV1:
		default:
			return fmt.Errorf("heal mrf: unknown version: %d", binary.LittleEndian.Uint16(data[2:4]))
		}

		mr := msgp.NewReader(rc)
		for {
			op := PartialOperation{}
			err = op.DecodeMsg(mr)
			if err != nil {
				break
			}
			opCh <- op
		}

		return nil
	}

	globalLocalDrivesMu.RLock()

func (s *storageRESTServer) DeleteBulkHandler(w http.ResponseWriter, r *http.Request) {
	if !s.IsValid(w, r) {
		return
	}

	var req DeleteBulkReq
	mr := msgpNewReader(r.Body)
	defer readMsgpReaderPoolPut(mr)

	if err := req.DecodeMsg(mr); err != nil {
		s.writeErrorResponse(w, err)
		return
	}

	volume := r.Form.Get(storageRESTVolume)

	pr, pw := io.Pipe()
	go func() {
		pw.CloseWithError(waitForHTTPStream(respBody, xioutil.NewDeadlineWriter(pw, globalDriveConfig.GetMaxTimeout())))
	}()
	mr := msgp.NewReader(pr)
	defer readMsgpReaderPoolPut(mr)
	for {
		var file ReadMultipleResp
		if err := file.DecodeMsg(mr); err != nil {
			if errors.Is(err, io.EOF) {
				err = nil
			}
			pr.CloseWithError(err)
			return toStorageErr(err)
		}
		select {

因此，如果您的 API 用户（外部开发者）发送请求到您的 API：

```
https://yourapi.com/invoices/?callback_url=https://www.external.org/events
```

使用如下 JSON 请求体：

```JSON
{
    "id": "2expen51ve",
    "customer": "Mr. Richie Rich",
    "total": "9999"
}
```

然后，您的 API 就会处理发票，并在某个点之后，发送回调请求至 `callback_url`（外部 API）：

```
https://www.external.org/events/invoices/2expen51ve
```

JSON 请求体包含如下内容：