Add configurable prefix for A/WsgiFunctionApp

azure/functions/decorators/function_app.py

@@ -3730,7 +3730,8 @@ def _add_http_app(self,
 class AsgiFunctionApp(ExternalHttpFunctionApp):
     def __init__(self, app,
                  http_auth_level: Union[AuthLevel, str] = AuthLevel.FUNCTION,
-                 function_name: str = 'http_app_func'):
+                 function_name: str = 'http_app_func',
+                 prefix: str = ''):
         """Constructor of :class:`AsgiFunctionApp` object.
 
         :param app: asgi app object.
@@ -3742,6 +3743,7 @@ def __init__(self, app,
         self.middleware = AsgiMiddleware(app)
         self._add_http_app(self.middleware, function_name)
         self.startup_task_done = False
+        self.prefix = prefix
 
     def __del__(self):
         if self.startup_task_done:
@@ -3768,7 +3770,7 @@ def _add_http_app(self,
         @self.http_type(http_type='asgi')
         @self.route(methods=(method for method in HttpMethod),
                     auth_level=self.auth_level,
-                    route="/{*route}")
+                    route=self.prefix + "/{*route}")
         async def http_app_func(req: HttpRequest, context: Context):
             if not self.startup_task_done:
                 success = await asgi_middleware.notify_startup()
@@ -3782,14 +3784,17 @@ async def http_app_func(req: HttpRequest, context: Context):
 class WsgiFunctionApp(ExternalHttpFunctionApp):
     def __init__(self, app,
                  http_auth_level: Union[AuthLevel, str] = AuthLevel.FUNCTION,
-                 function_name: str = 'http_app_func'):
+                 function_name: str = 'http_app_func',
+                 prefix = ''):
         """Constructor of :class:`WsgiFunctionApp` object.
 
         :param app: wsgi app object.
         :param function_name: function name
         """
         super().__init__(auth_level=http_auth_level)
+
         self._add_http_app(WsgiMiddleware(app), function_name)
+        self.prefix = prefix
 
     def _add_http_app(self,
                       http_middleware: Union[
@@ -3813,6 +3818,6 @@ def _add_http_app(self,
         @self.http_type(http_type='wsgi')
         @self.route(methods=(method for method in HttpMethod),
                     auth_level=self.auth_level,
-                    route="/{*route}")
+                    route=self.prefix + "/{*route}")
         def http_app_func(req: HttpRequest, context: Context):
             return wsgi_middleware.handle(req, context)

docs/ProgModelSpec.pyi

@@ -1248,7 +1248,8 @@ class ThirdPartyHttpFunctionApp(FunctionRegister, TriggerApi, ABC):
 
 class AsgiFunctionApp(ThirdPartyHttpFunctionApp):
     def __init__(self, app,
-                 http_auth_level: Union[AuthLevel, str] = AuthLevel.FUNCTION):
+                 http_auth_level: Union[AuthLevel, str] = AuthLevel.FUNCTION,
+                 prefix: str = ""):
         """Constructor of :class:`AsgiFunctionApp` object.
 
         :param app: asgi app object.
@@ -1258,7 +1259,8 @@ class AsgiFunctionApp(ThirdPartyHttpFunctionApp):
 
 class WsgiFunctionApp(ThirdPartyHttpFunctionApp):
     def __init__(self, app,
-                 http_auth_level: Union[AuthLevel, str] = AuthLevel.FUNCTION):
+                 http_auth_level: Union[AuthLevel, str] = AuthLevel.FUNCTION,
+                 prefix: str = ""):
         """Constructor of :class:`WsgiFunctionApp` object.
 
         :param app: wsgi app object.

tests/decorators/test_function_app.py

@@ -917,6 +917,10 @@ def test_asgi_function_app_custom(self):
                               http_auth_level=AuthLevel.ANONYMOUS)
         self.assertEqual(app.auth_level, AuthLevel.ANONYMOUS)
 
+    def test_asgi_function_app_prefix(self):
+        app = AsgiFunctionApp(app=object(), prefix="v1")
+        self.assertEqual(app.prefix, "v1")
+
     def test_asgi_function_app_is_http_function(self):
         app = AsgiFunctionApp(app=object())
         funcs = app.get_functions()
@@ -933,6 +937,10 @@ def test_wsgi_function_app_custom(self):
                               http_auth_level=AuthLevel.ANONYMOUS)
         self.assertEqual(app.auth_level, AuthLevel.ANONYMOUS)
 
+    def test_wsgi_function_app_prefix(self):
+        app = WsgiFunctionApp(app=object(), prefix="v1")
+        self.assertEqual(app.prefix, "v1")
+
     def test_wsgi_function_app_is_http_function(self):
         app = WsgiFunctionApp(
             app=object(),