Add variants for `custom_request_and_route/tutorial001`

docs/en/docs/how-to/custom-request-and-route.md

@@ -42,7 +42,7 @@ If there's no `gzip` in the header, it will not try to decompress the body.
 
 That way, the same route class can handle gzip compressed or uncompressed requests.
 
-{* ../../docs_src/custom_request_and_route/tutorial001.py hl[8:15] *}
+{* ../../docs_src/custom_request_and_route/tutorial001_an_py310.py hl[9:16] *}
 
 ### Create a custom `GzipRoute` class { #create-a-custom-gziproute-class }
 
@@ -54,7 +54,7 @@ This method returns a function. And that function is what will receive a request
 
 Here we use it to create a `GzipRequest` from the original request.
 
-{* ../../docs_src/custom_request_and_route/tutorial001.py hl[18:26] *}
+{* ../../docs_src/custom_request_and_route/tutorial001_an_py310.py hl[19:27] *}
 
 /// note | Technical Details
 

docs_src/custom_request_and_route/tutorial001_an.py

@@ -0,0 +1,36 @@
+import gzip
+from typing import Callable, List
+
+from fastapi import Body, FastAPI, Request, Response
+from fastapi.routing import APIRoute
+from typing_extensions import Annotated
+
+
+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
+        return self._body
+
+
+class GzipRoute(APIRoute):
+    def get_route_handler(self) -> Callable:
+        original_route_handler = super().get_route_handler()
+
+        async def custom_route_handler(request: Request) -> Response:
+            request = GzipRequest(request.scope, request.receive)
+            return await original_route_handler(request)
+
+        return custom_route_handler
+
+
+app = FastAPI()
+app.router.route_class = GzipRoute
+
+
+@app.post("/sum")
+async def sum_numbers(numbers: Annotated[List[int], Body()]):
+    return {"sum": sum(numbers)}

docs_src/custom_request_and_route/tutorial001_an_py310.py

@@ -0,0 +1,36 @@
+import gzip
+from collections.abc import Callable
+from typing import Annotated
+
+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
+        return self._body
+
+
+class GzipRoute(APIRoute):
+    def get_route_handler(self) -> Callable:
+        original_route_handler = super().get_route_handler()
+
+        async def custom_route_handler(request: Request) -> Response:
+            request = GzipRequest(request.scope, request.receive)
+            return await original_route_handler(request)
+
+        return custom_route_handler
+
+
+app = FastAPI()
+app.router.route_class = GzipRoute
+
+
+@app.post("/sum")
+async def sum_numbers(numbers: Annotated[list[int], Body()]):
+    return {"sum": sum(numbers)}

docs_src/custom_request_and_route/tutorial001_an_py39.py

@@ -0,0 +1,35 @@
+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
+        return self._body
+
+
+class GzipRoute(APIRoute):
+    def get_route_handler(self) -> Callable:
+        original_route_handler = super().get_route_handler()
+
+        async def custom_route_handler(request: Request) -> Response:
+            request = GzipRequest(request.scope, request.receive)
+            return await original_route_handler(request)
+
+        return custom_route_handler
+
+
+app = FastAPI()
+app.router.route_class = GzipRoute
+
+
+@app.post("/sum")
+async def sum_numbers(numbers: Annotated[list[int], Body()]):
+    return {"sum": sum(numbers)}

docs_src/custom_request_and_route/tutorial001_py310.py

@@ -0,0 +1,35 @@
+import gzip
+from collections.abc import 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
+        return self._body
+
+
+class GzipRoute(APIRoute):
+    def get_route_handler(self) -> Callable:
+        original_route_handler = super().get_route_handler()
+
+        async def custom_route_handler(request: Request) -> Response:
+            request = GzipRequest(request.scope, request.receive)
+            return await original_route_handler(request)
+
+        return custom_route_handler
+
+
+app = FastAPI()
+app.router.route_class = GzipRoute
+
+
+@app.post("/sum")
+async def sum_numbers(numbers: list[int] = Body()):
+    return {"sum": sum(numbers)}

docs_src/custom_request_and_route/tutorial001_py39.py

@@ -0,0 +1,35 @@
+import gzip
+from typing import 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
+        return self._body
+
+
+class GzipRoute(APIRoute):
+    def get_route_handler(self) -> Callable:
+        original_route_handler = super().get_route_handler()
+
+        async def custom_route_handler(request: Request) -> Response:
+            request = GzipRequest(request.scope, request.receive)
+            return await original_route_handler(request)
+
+        return custom_route_handler
+
+
+app = FastAPI()
+app.router.route_class = GzipRoute
+
+
+@app.post("/sum")
+async def sum_numbers(numbers: list[int] = Body()):
+    return {"sum": sum(numbers)}

tests/test_tutorial/test_custom_request_and_route/test_tutorial001.py

@@ -1,23 +1,38 @@
 import gzip
+import importlib
 import json
 
 import pytest
 from fastapi import Request
 from fastapi.testclient import TestClient
 
-from docs_src.custom_request_and_route.tutorial001 import app
+from tests.utils import needs_py39, needs_py310
 
 
-@app.get("/check-class")
+@pytest.fixture(
-async def check_gzip_request(request: Request):
+    name="client",
-    return {"request_class": type(request).__name__}
+    params=[
+        pytest.param("tutorial001"),
+        pytest.param("tutorial001_py39", marks=needs_py39),
+        pytest.param("tutorial001_py310", marks=needs_py310),
+        pytest.param("tutorial001_an"),
+        pytest.param("tutorial001_an_py39", marks=needs_py39),
+        pytest.param("tutorial001_an_py310", marks=needs_py310),
+    ],
+)
+def get_client(request: pytest.FixtureRequest):
+    mod = importlib.import_module(f"docs_src.custom_request_and_route.{request.param}")
 
+    @mod.app.get("/check-class")
+    async def check_gzip_request(request: Request):
+        return {"request_class": type(request).__name__}
 
-client = TestClient(app)
+    client = TestClient(mod.app)
+    return client
 
 
 @pytest.mark.parametrize("compress", [True, False])
-def test_gzip_request(compress):
+def test_gzip_request(client: TestClient, compress):
     n = 1000
     headers = {}
     body = [1] * n
@@ -30,6 +45,6 @@ def test_gzip_request(compress):
     assert response.json() == {"sum": n}
 
 
-def test_request_class():
+def test_request_class(client: TestClient):
     response = client.get("/check-class")
     assert response.json() == {"request_class": "GzipRequest"}