From 2c0743a3b1989723d58eea39e708d96a85b9c167 Mon Sep 17 00:00:00 2001
From: Javier <jafermarq@users.noreply.github.com>
Date: Tue, 22 Oct 2024 19:40:33 +0100
Subject: [PATCH] feat(framework) Introduce `flwr-serverapp` CLI entrypoint
 (#4350)

---
 pyproject.toml                           |  3 ++-
 src/py/flwr/server/serverapp/__init__.py | 22 ++++++++++++++++++++++
 src/py/flwr/server/serverapp/app.py      | 20 ++++++++++++++++++++
 3 files changed, 44 insertions(+), 1 deletion(-)
 create mode 100644 src/py/flwr/server/serverapp/__init__.py
 create mode 100644 src/py/flwr/server/serverapp/app.py

diff --git a/pyproject.toml b/pyproject.toml
index 4b8e671a50f3..d7d2d644a333 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,8 @@ flower-simulation = "flwr.simulation.run_simulation:run_simulation_from_cli"
 # Deployment Engine
 flower-superlink = "flwr.server.app:run_superlink"
 flower-supernode = "flwr.client.supernode.app:run_supernode"
-flower-server-app = "flwr.server.run_serverapp:run_server_app"
+flwr-serverapp = "flwr.server.serverapp:flwr_serverapp"
+flower-server-app = "flwr.server.run_serverapp:run_server_app" # Deprecated
 flwr-clientapp = "flwr.client.clientapp:flwr_clientapp"
 flower-client-app = "flwr.client.supernode:run_client_app" # Deprecated
 
diff --git a/src/py/flwr/server/serverapp/__init__.py b/src/py/flwr/server/serverapp/__init__.py
new file mode 100644
index 000000000000..2873438e3c60
--- /dev/null
+++ b/src/py/flwr/server/serverapp/__init__.py
@@ -0,0 +1,22 @@
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+"""Flower AppIO service."""
+
+
+from .app import flwr_serverapp as flwr_serverapp
+
+__all__ = [
+    "flwr_serverapp",
+]
diff --git a/src/py/flwr/server/serverapp/app.py b/src/py/flwr/server/serverapp/app.py
new file mode 100644
index 000000000000..a02761372097
--- /dev/null
+++ b/src/py/flwr/server/serverapp/app.py
@@ -0,0 +1,20 @@
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+"""Flower ServerApp process."""
+
+
+def flwr_serverapp() -> None:
+    """Run process-isolated Flower ServerApp."""
+    raise NotImplementedError()