fix auto_create_session parameter in the Runner class issue

src/google/adk/cli/adk_web_server.py

@@ -492,6 +492,7 @@ def __init__(
       logo_text: Optional[str] = None,
       logo_image_url: Optional[str] = None,
       url_prefix: Optional[str] = None,
+      auto_create_session: bool = False,
   ):
     self.agent_loader = agent_loader
     self.session_service = session_service
@@ -509,6 +510,7 @@ def __init__(
     self.current_app_name_ref: SharedValue[str] = SharedValue(value="")
     self.runner_dict = {}
     self.url_prefix = url_prefix
+    self.auto_create_session = auto_create_session
 
   async def get_runner_async(self, app_name: str) -> Runner:
     """Returns the cached runner for the given app."""
@@ -558,6 +560,7 @@ def _create_runner(self, agentic_app: App) -> Runner:
         session_service=self.session_service,
         memory_service=self.memory_service,
         credential_service=self.credential_service,
+        auto_create_session=self.auto_create_session,
     )
 
   def _instantiate_extra_plugins(self) -> list[BasePlugin]:
@@ -946,6 +949,27 @@ async def create_eval_set(
             detail=str(ve),
         ) from ve
 
+    @deprecated(
+        "Please use create_eval_set instead. This will be removed in future"
+        " releases."
+    )
+    @app.post(
+        "/apps/{app_name}/eval_sets/{eval_set_id}",
+        response_model_exclude_none=True,
+        tags=[TAG_EVALUATION],
+    )
+    async def create_eval_set_legacy(
+        app_name: str,
+        eval_set_id: str,
+    ):
+      """Creates an eval set, given the id."""
+      await create_eval_set(
+          app_name=app_name,
+          create_eval_set_request=CreateEvalSetRequest(
+              eval_set=EvalSet(eval_set_id=eval_set_id, eval_cases=[])
+          ),
+      )
+
     @app.get(
         "/apps/{app_name}/eval-sets",
         response_model_exclude_none=True,
@@ -961,6 +985,19 @@ async def list_eval_sets(app_name: str) -> ListEvalSetsResponse:
 
       return ListEvalSetsResponse(eval_set_ids=eval_sets)
 
+    @deprecated(
+        "Please use list_eval_sets instead. This will be removed in future"
+        " releases."
+    )
+    @app.get(
+        "/apps/{app_name}/eval_sets_legacy",
+        response_model_exclude_none=True,
+        tags=[TAG_EVALUATION],
+    )
+    async def list_eval_sets_legacy(app_name: str) -> list[str]:
+      list_eval_sets_response = await list_eval_sets(app_name)
+      return list_eval_sets_response.eval_set_ids
+
     @app.post(
         "/apps/{app_name}/eval-sets/{eval_set_id}/add-session",
         response_model_exclude_none=True,
@@ -1108,6 +1145,22 @@ async def delete_eval(
       except NotFoundError as nfe:
         raise HTTPException(status_code=404, detail=str(nfe)) from nfe
 
+    @deprecated(
+        "Please use run_eval instead. This will be removed in future releases."
+    )
+    @app.post(
+        "/apps/{app_name}/eval_sets/{eval_set_id}/run_eval",
+        response_model_exclude_none=True,
+        tags=[TAG_EVALUATION],
+    )
+    async def run_eval_legacy(
+        app_name: str, eval_set_id: str, req: RunEvalRequest
+    ) -> list[RunEvalResult]:
+      run_eval_response = await run_eval(
+          app_name=app_name, eval_set_id=eval_set_id, req=req
+      )
+      return run_eval_response.run_eval_results
+
     @app.post(
         "/apps/{app_name}/eval-sets/{eval_set_id}/run",
         response_model_exclude_none=True,
@@ -1201,6 +1254,28 @@ async def get_eval_result(
       except ValidationError as ve:
         raise HTTPException(status_code=500, detail=str(ve)) from ve
 
+    @deprecated(
+        "Please use get_eval_result instead. This will be removed in future"
+        " releases."
+    )
+    @app.get(
+        "/apps/{app_name}/eval_results/{eval_result_id}",
+        response_model_exclude_none=True,
+        tags=[TAG_EVALUATION],
+    )
+    async def get_eval_result_legacy(
+        app_name: str,
+        eval_result_id: str,
+    ) -> EvalSetResult:
+      try:
+        return self.eval_set_results_manager.get_eval_set_result(
+            app_name, eval_result_id
+        )
+      except ValueError as ve:
+        raise HTTPException(status_code=404, detail=str(ve)) from ve
+      except ValidationError as ve:
+        raise HTTPException(status_code=500, detail=str(ve)) from ve
+
     @app.get(
         "/apps/{app_name}/eval-results",
         response_model_exclude_none=True,
@@ -1213,6 +1288,19 @@ async def list_eval_results(app_name: str) -> ListEvalResultsResponse:
       )
       return ListEvalResultsResponse(eval_result_ids=eval_result_ids)
 
+    @deprecated(
+        "Please use list_eval_results instead. This will be removed in future"
+        " releases."
+    )
+    @app.get(
+        "/apps/{app_name}/eval_results",
+        response_model_exclude_none=True,
+        tags=[TAG_EVALUATION],
+    )
+    async def list_eval_results_legacy(app_name: str) -> list[str]:
+      list_eval_results_response = await list_eval_results(app_name)
+      return list_eval_results_response.eval_result_ids
+
     @app.get(
         "/apps/{app_name}/metrics-info",
         response_model_exclude_none=True,

src/google/adk/cli/cli_tools_click.py

@@ -1378,6 +1378,14 @@ async def _lifespan(app: FastAPI):
 @fast_api_common_options()
 @adk_services_options(default_use_local_storage=True)
 @deprecated_adk_services_options()
+@click.option(
+    "--auto_create_session",
+    is_flag=True,
+    default=False,
+    help=(
+        "Automatically create a session if it doesn't exist when calling /run."
+    ),
+)
 def cli_api_server(
     agents_dir: str,
     eval_storage_uri: Optional[str] = None,
@@ -1398,6 +1406,7 @@ def cli_api_server(
     a2a: bool = False,
     reload_agents: bool = False,
     extra_plugins: Optional[list[str]] = None,
+    auto_create_session: bool = False,
 ):
   """Starts a FastAPI server for agents.
 
@@ -1430,6 +1439,7 @@ def cli_api_server(
           url_prefix=url_prefix,
           reload_agents=reload_agents,
           extra_plugins=extra_plugins,
+          auto_create_session=auto_create_session,
       ),
       host=host,
       port=port,

src/google/adk/cli/fast_api.py

@@ -91,6 +91,7 @@ def get_fast_api_app(
     extra_plugins: Optional[list[str]] = None,
     logo_text: Optional[str] = None,
     logo_image_url: Optional[str] = None,
+    auto_create_session: bool = False,
 ) -> FastAPI:
 
   # Set up eval managers.
@@ -153,6 +154,7 @@ def get_fast_api_app(
       logo_text=logo_text,
       logo_image_url=logo_image_url,
       url_prefix=url_prefix,
+      auto_create_session=auto_create_session,
   )
 
   # Callbacks & other optional args for when constructing the FastAPI instance