Avec FastAPI, en utilisant OpenAPI, vous pouvez définir les noms de ces webhooks, les types d'opérations HTTP que votre application peut envoyer (par exemple `POST`, `PUT`, etc.) et les corps des requêtes que votre application enverra.

	scanner := newScanner(r)
	for scanner.pos < atomic.LoadInt64(&scanner.end) {
		c := scanner.next()
		if scanner.readerErr != nil {
			t.Fatal(scanner.readerErr)
		}
		if c != data[i] {
			t.Fatalf("expected %s, got %s", string(data[i]), string(c))
		}
		t.Logf("pos=%d remaining=%d (%s)", i, r.Len(), string(c))
		i++
	}
}

type mockReader struct {
	pos       int
	mockData  byte
	failAfter int
}

當瀏覽器在連線中斷後重新連線時，會在 `Last-Event-ID` 標頭中傳送最後接收到的 `id`。

你可以將它作為標頭參數讀取，並用來從用戶端中斷處繼續串流：

{* ../../docs_src/server_sent_events/tutorial004_py310.py hl[25,27,31] *}

## 使用 POST 的 SSE { #sse-with-post }

SSE 可搭配**任何 HTTP 方法**，不僅限於 `GET`。

這對於像是透過 `POST` 串流 SSE 的協定（例如 [MCP](https://modelcontextprotocol.io)）很有用：

{* ../../docs_src/server_sent_events/tutorial005_py310.py hl[14] *}

## 技術細節 { #technical-details }

If you want to read more about these encodings and form fields, head to the [<abbr title="Mozilla Developer Network">MDN</abbr> web docs for `POST`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST).

///

/// warning

   *
   * @param event event to post.
   */
  public void post(Object event) {
    Iterator<Subscriber> eventSubscribers = subscribers.getSubscribers(event);
    if (eventSubscribers.hasNext()) {
      dispatcher.dispatch(event, eventSubscribers);
    } else if (!(event instanceof DeadEvent)) {
      // the event had no subscribers and was not itself a DeadEvent
      post(new DeadEvent(this, event));
    }
  }

        assertEquals(0, bytesWritten, "Should return 0 bytes written for null source.");
        assertEquals(pos, NtlmMessage.readULong(dest, off), "Position should still be written for null source.");

        // Test with empty source array
        dest = new byte[20];
        bytesWritten = NtlmMessage.writeSecurityBufferContent(dest, pos, off, new byte[0]);

    app = FastAPI()

    testing_file_store: list[UploadFile] = []

    @app.post("/uploadfile/")
    def create_upload_file(file: UploadFile):
        testing_file_store.append(file)
        return {"filename": file.filename}

    client = TestClient(app)
    with path.open("rb") as file:
        response = client.post("/uploadfile/", files={"file": file})
    assert response.status_code == 200, response.text

API'nizin kullanıcısı (external bir geliştirici) API'nizde bir POST request ile fatura oluşturacak.

Sonra API'niz (varsayalım ki):

* Faturayı external geliştiricinin bir müşterisine gönderir.
* Parayı tahsil eder.
* API kullanıcısına (external geliştiriciye) tekrar bir bildirim gönderir.
    * Bu, external geliştiricinin sağladığı bir *external API*'ye (sizin API'nizden) bir POST request gönderilerek yapılır (işte bu "callback"tir).

Si quieres leer más sobre estas codificaciones y campos de formulario, dirígete a las [<abbr title="Mozilla Developer Network - Red de Desarrolladores de Mozilla">MDN</abbr> web docs para `POST`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST).

///

/// warning | Advertencia

     */
    public static final String GET_METHOD = "GET";

    /**
     * The HEAD method.
     */
    public static final String HEAD_METHOD = "HEAD";

    /**
     * The POST method.
     */
    public static final String POST_METHOD = "POST";

    /**
     * The status code for OK.
     */
    public static final int OK_STATUS = 0;

    /**
     * The status code for Not Modified.
     */