}

  @Test
  fun gzipThroughCall() {
    val gzip = CompressionInterceptor(Gzip)
    val client =
      clientTestRule
        .newClientBuilder()
        .addInterceptor(gzip)
        .addInterceptor { chain ->
          assertThat(chain.request().header("Accept-Encoding")).isEqualTo("gzip")

          Response
            .Builder()
            .request(chain.request())

* Descomprimir cuerpos de requests comprimidos con gzip.
* Registrar automáticamente todos los request bodies.

## Manejo de codificaciones personalizadas de request body { #handling-custom-request-body-encodings }

Veamos cómo hacer uso de una subclase personalizada de `Request` para descomprimir requests gzip.

Y una subclase de `APIRoute` para usar esa clase de request personalizada.

    }

    Request compressedRequest = originalRequest.newBuilder()
        .header("Content-Encoding", "gzip")
        .method(originalRequest.method(), gzip(originalRequest.body()))
        .build();
    return chain.proceed(compressedRequest);
  }

  private RequestBody gzip(final RequestBody body) {
    return new RequestBody() {
      @Override public MediaType contentType() {

## `GZipMiddleware` { #gzipmiddleware }

Обрабатывает GZip‑ответы для любых запросов, которые включают `"gzip"` в заголовке `Accept-Encoding`.

Это middleware обрабатывает как обычные, так и потоковые ответы.

{* ../../docs_src/advanced_middleware/tutorial003_py39.py hl[2,6] *}

Поддерживаются следующие аргументы:

null-long-match.wb.expect-noinput", "src/compress/flate/token.go", "src/compress/flate/writer_test.go", "src/compress/gzip/", "src/compress/gzip/example_test.go", "src/compress/gzip/gunzip.go", "src/compress/gzip/gunzip_test.go", "src/compress/gzip/gzip.go", "src/compress/gzip/gzip_test.go", "src/compress/gzip/issue14937_test.go", "src/compress/gzip/testdata/", "src/compress/gzip/testdata/issue6550.gz.base64", "src/compress/lzw/", "src/compress/lzw/reader.go", "src/compress/lzw/reader_test.go", ...

            .gzip()
            .build(),
        ).execute()
    val responseBody = response.body
    assertThat(responseBody.string(), "Expected response body to be valid")
      .isEqualTo("Uncompressed")
    responseBody.close()
    networkLogs
      .assertLogEqual("--> POST $url http/1.1")
      .assertLogEqual("Content-Encoding: gzip")
      .assertLogEqual("Transfer-Encoding: chunked")

import gzip
from typing import Annotated, Callable

from fastapi import Body, FastAPI, Request, Response
from fastapi.routing import APIRoute


class GzipRequest(Request):
    async def body(self) -> bytes:
        if not hasattr(self, "_body"):
            body = await super().body()
            if "gzip" in self.headers.getlist("Content-Encoding"):
                body = gzip.decompress(body)
            self._body = body

        assertEquals("100", response.getHeaderValue("content-length"));
        assertEquals("100", response.getHeaderValue("CONTENT-LENGTH"));

        assertEquals("gzip", response.getHeaderValue("Accept-Encoding"));
        assertEquals("gzip", response.getHeaderValue("ACCEPT-ENCODING"));
    }

from fastapi import FastAPI
from fastapi.middleware.gzip import GZipMiddleware

app = FastAPI()

app.add_middleware(GZipMiddleware, minimum_size=1000, compresslevel=5)


@app.get("/")
async def main():

* Decompressing gzip-compressed request bodies.
* Automatically logging all request bodies.

## Handling custom request body encodings { #handling-custom-request-body-encodings }

Let's see how to make use of a custom `Request` subclass to decompress gzip requests.

And an `APIRoute` subclass to use that custom request class.