Add args/kwargs to rest of the methods and fix test

fastapi/applications.py

@@ -2226,7 +2226,6 @@ class FastAPI(Starlette):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -2545,6 +2544,8 @@ class FastAPI(Starlette):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP POST operation.
@@ -2590,6 +2591,8 @@ class FastAPI(Starlette):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     def delete(
@@ -2604,7 +2607,6 @@ class FastAPI(Starlette):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -2923,6 +2925,8 @@ class FastAPI(Starlette):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP DELETE operation.
@@ -2963,6 +2967,8 @@ class FastAPI(Starlette):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     def options(
@@ -2977,7 +2983,6 @@ class FastAPI(Starlette):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -3296,6 +3301,8 @@ class FastAPI(Starlette):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP OPTIONS operation.
@@ -3336,6 +3343,8 @@ class FastAPI(Starlette):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs
         )
 
     def head(
@@ -3350,7 +3359,6 @@ class FastAPI(Starlette):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -3669,6 +3677,8 @@ class FastAPI(Starlette):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP HEAD operation.
@@ -3709,6 +3719,8 @@ class FastAPI(Starlette):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs
         )
 
     def patch(
@@ -3723,7 +3735,6 @@ class FastAPI(Starlette):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -4042,6 +4053,8 @@ class FastAPI(Starlette):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP PATCH operation.
@@ -4087,6 +4100,8 @@ class FastAPI(Starlette):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs
         )
 
     def trace(
@@ -4101,7 +4116,6 @@ class FastAPI(Starlette):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -4420,6 +4434,8 @@ class FastAPI(Starlette):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP TRACE operation.
@@ -4460,6 +4476,8 @@ class FastAPI(Starlette):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs
         )
 
     def websocket_route(

fastapi/routing.py

@@ -984,6 +984,8 @@ class APIRouter(routing.Router):
                 callbacks=callbacks,
                 openapi_extra=openapi_extra,
                 generate_unique_id_function=generate_unique_id_function,
+                *args,
+                **kwargs,
             )
             return func
 
@@ -1089,7 +1091,6 @@ class APIRouter(routing.Router):
     def include_router(
         self,
         router: Annotated["APIRouter", Doc("The `APIRouter` to include.")],
-        *,
         prefix: Annotated[str, Doc("An optional path prefix for the router.")] = "",
         tags: Annotated[
             Optional[List[Union[str, Enum]]],
@@ -1197,6 +1198,8 @@ class APIRouter(routing.Router):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any,
     ) -> None:
         """
         Include another `APIRouter` in the same current `APIRouter`.
@@ -1295,6 +1298,8 @@ class APIRouter(routing.Router):
                     callbacks=current_callbacks,
                     openapi_extra=route.openapi_extra,
                     generate_unique_id_function=current_generate_unique_id,
+                    *args,
+                    **kwargs
                 )
             elif isinstance(route, routing.Route):
                 methods = list(route.methods or [])
@@ -1702,6 +1707,8 @@ class APIRouter(routing.Router):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     def put(
@@ -1716,7 +1723,6 @@ class APIRouter(routing.Router):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -2035,6 +2041,8 @@ class APIRouter(routing.Router):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any,
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP PUT operation.
@@ -2084,6 +2092,8 @@ class APIRouter(routing.Router):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     def post(
@@ -2098,7 +2108,6 @@ class APIRouter(routing.Router):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -2417,6 +2426,8 @@ class APIRouter(routing.Router):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any,
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP POST operation.
@@ -2466,6 +2477,8 @@ class APIRouter(routing.Router):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     def delete(
@@ -2480,7 +2493,6 @@ class APIRouter(routing.Router):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -2799,6 +2811,8 @@ class APIRouter(routing.Router):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any,
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP DELETE operation.
@@ -2843,6 +2857,8 @@ class APIRouter(routing.Router):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     def options(
@@ -2857,7 +2873,6 @@ class APIRouter(routing.Router):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -3176,6 +3191,8 @@ class APIRouter(routing.Router):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any,
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP OPTIONS operation.
@@ -3220,6 +3237,8 @@ class APIRouter(routing.Router):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     def head(
@@ -3234,7 +3253,6 @@ class APIRouter(routing.Router):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -3553,6 +3571,8 @@ class APIRouter(routing.Router):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any,
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP HEAD operation.
@@ -3602,6 +3622,8 @@ class APIRouter(routing.Router):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     def patch(
@@ -3616,7 +3638,6 @@ class APIRouter(routing.Router):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -3935,6 +3956,8 @@ class APIRouter(routing.Router):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any,
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP PATCH operation.
@@ -3984,6 +4007,8 @@ class APIRouter(routing.Router):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     def trace(
@@ -3998,7 +4023,6 @@ class APIRouter(routing.Router):
                 """
             ),
         ],
-        *,
         response_model: Annotated[
             Any,
             Doc(
@@ -4317,6 +4341,8 @@ class APIRouter(routing.Router):
                 """
             ),
         ] = Default(generate_unique_id),
+        *args: Any,
+        **kwargs: Any,
     ) -> Callable[[DecoratedCallable], DecoratedCallable]:
         """
         Add a *path operation* using an HTTP TRACE operation.
@@ -4366,6 +4392,8 @@ class APIRouter(routing.Router):
             callbacks=callbacks,
             openapi_extra=openapi_extra,
             generate_unique_id_function=generate_unique_id_function,
+            *args,
+            **kwargs,
         )
 
     @deprecated(

tests/test_operations_signatures.py

@@ -1,22 +1,24 @@
 import inspect
 
+import pytest
+
 from fastapi import APIRouter, FastAPI
 
 method_names = ["get", "put", "post", "delete", "options", "head", "patch", "trace"]
 
 
-def test_signatures_consistency():
+@pytest.mark.parametrize('method_name', ["get", "put", "post", "delete", "options", "head", "patch", "trace"])
-    base_sig = inspect.signature(APIRouter.get)
+@pytest.mark.parametrize('sig_param', inspect.signature(APIRouter.get).parameters.items())
-    for method_name in method_names:
+def test_signatures_consistency(method_name, sig_param):
-        router_method = getattr(APIRouter, method_name)
+    router_method = getattr(APIRouter, method_name)
-        app_method = getattr(FastAPI, method_name)
+    app_method = getattr(FastAPI, method_name)
-        router_sig = inspect.signature(router_method)
+    router_sig = inspect.signature(router_method)
-        app_sig = inspect.signature(app_method)
+    app_sig = inspect.signature(app_method)
-        param: inspect.Parameter
+    param: inspect.Parameter
-        for key, param in base_sig.parameters.items():
+    key, param = sig_param
-            router_param: inspect.Parameter = router_sig.parameters[key]
+    router_param: inspect.Parameter = router_sig.parameters[key]
-            app_param: inspect.Parameter = app_sig.parameters[key]
+    app_param: inspect.Parameter = app_sig.parameters[key]
-            assert param.annotation == router_param.annotation
+    assert param.annotation == router_param.annotation
-            assert param.annotation == app_param.annotation
+    assert param.annotation == app_param.annotation
-            assert param.default == router_param.default
+    assert param.default == router_param.default
-            assert param.default == app_param.default
+    assert param.default == app_param.default