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docs/zh/docs/tutorial/handling-errors.md

`RequestValidationError` 包含其接收到的无效数据请求的 `body` 。

开发时，可以用这个请求体生成日志、调试错误，并返回给用户。

{* ../../docs_src/handling_errors/tutorial005.py hl[14] *}

现在试着发送一个无效的 `item`，例如：

```JSON
{
  "title": "towel",
  "size": "XL"
}

```

收到的响应包含 `body` 信息，并说明数据是无效的：

```JSON hl_lines="12-15"
{
  "detail": [
    {
      "loc": [
        "body",
        "size"
      ],

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github.com/square/okhttp

docs/changelogs/changelog_4x.md

    ```kotlin
    val response: Response = call.execute()
    val multipartReader = MultipartReader(response.body!!)

    multipartReader.use {
      while (true) {
        val part = multipartReader.nextPart() ?: break
        process(part.headers, part.body)
      }
    }
    ```

 *  New: `MediaType.parameter()` gets a parameter like `boundary` from a media type like

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github.com/tiangolo/fastapi

docs_src/schema_extra_example/tutorial005_an_py310.py

from typing import Annotated

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Annotated[
        Item,
        Body(
            openapi_examples={

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github.com/tiangolo/fastapi

docs_src/schema_extra_example/tutorial005_py39.py

from typing import Union

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Item = Body(
        openapi_examples={
            "normal": {

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github.com/square/okhttp

okhttp/src/commonJvmAndroid/kotlin/okhttp3/internal/http/ExchangeCodec.kt

  val carrier: Carrier

  /** Returns true if the response body and (possibly empty) trailers have been received. */
  val isResponseComplete: Boolean

  /** The socket that carries this exchange. */
  val socket: Socket

  /** Returns an output stream where the request body can be streamed. */
  @Throws(IOException::class)
  fun createRequestBody(
    request: Request,

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github.com/minio/minio

docs/sts/client-grants.go

	}
	hclient := http.Client{
		Transport: t,
	}
	resp, err := hclient.Do(req)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	if resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("%s", resp.Status)
	}

	var idpToken JWTToken
	if err = json.NewDecoder(resp.Body).Decode(&idpToken); err != nil {
		return nil, err
	}

Created: Sun Dec 28 19:28:13 GMT 2025

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github.com/tiangolo/fastapi

docs/en/docs/advanced/path-operation-advanced-configuration.md

In this example, we didn't declare any Pydantic model. In fact, the request body is not even <abbr title="converted from some plain format, like bytes, into Python objects">parsed</abbr> as JSON, it is read directly as `bytes`, and the function `magic_data_reader()` would be in charge of parsing it in some way.

Nevertheless, we can declare the expected schema for the request body.

### Custom OpenAPI content type { #custom-openapi-content-type }

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github.com/minio/minio

cmd/admin-handlers-idp-config.go

		// More than maxConfigSize bytes were available
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigTooLarge), r.URL)
		return
	}

	// Ensure body content type is opaque to ensure that request body has not
	// been interpreted as form data.
	contentType := r.Header.Get("Content-Type")
	if contentType != "application/octet-stream" {

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github.com/tiangolo/fastapi

docs_src/websockets/tutorial001_py39.py

from fastapi import FastAPI, WebSocket
from fastapi.responses import HTMLResponse

app = FastAPI()

html = """
<!DOCTYPE html>
<html>
    <head>
        <title>Chat</title>
    </head>
    <body>
        <h1>WebSocket Chat</h1>
        <form action="" onsubmit="sendMessage(event)">
            <input type="text" id="messageText" autocomplete="off"/>
            <button>Send</button>
        </form>
        <ul id='messages'>

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/square/okhttp

okhttp-brotli/src/test/java/okhttp3/brotli/BrotliTestMain.kt

}

private fun sendRequest(
  url: String,
  client: OkHttpClient,
) {
  val req = Request.Builder().url(url).build()

  client.newCall(req).execute().use {
    println(it.body.string())
  }

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