From e01993b7f19c67b6187427e22ba85428f59b68a2 Mon Sep 17 00:00:00 2001
From: Gabriel Luiz Freitas Almeida <gabriel@logspace.ai>
Date: Mon, 19 Jun 2023 09:55:29 -0300
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20fix(=5F=5Fmain=5F=5F.py):=20add?=
 =?UTF-8?q?=20support=20for=20running=20Langflow=20on=20Windows=20?=
 =?UTF-8?q?=E2=9C=A8=20feat(=5F=5Fmain=5F=5F.py):=20add=20support=20for=20?=
 =?UTF-8?q?running=20Langflow=20on=20MacOS=20and=20Linux=20using=20gunicor?=
 =?UTF-8?q?n=20The=20changes=20add=20support=20for=20running=20Langflow=20?=
 =?UTF-8?q?on=20Windows=20by=20using=20uvicorn=20instead=20of=20gunicorn.?=
 =?UTF-8?q?=20This=20is=20because=20Windows=20doesn't=20support=20gunicorn?=
 =?UTF-8?q?.=20The=20changes=20also=20add=20support=20for=20running=20Lang?=
 =?UTF-8?q?flow=20on=20MacOS=20and=20Linux=20using=20gunicorn.=20This=20is?=
 =?UTF-8?q?=20because=20MacOS=20requires=20an=20env=20variable=20to=20be?=
 =?UTF-8?q?=20set=20to=20use=20gunicorn.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/backend/langflow/__main__.py | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/backend/langflow/__main__.py b/src/backend/langflow/__main__.py
index 5598fb78c..29f60ed23 100644
--- a/src/backend/langflow/__main__.py
+++ b/src/backend/langflow/__main__.py
@@ -152,6 +152,17 @@ def serve(
         "timeout": timeout,
     }
 
+    if platform.system() in ["Windows"]:
+        # Run using uvicorn on MacOS and Windows
+        # Windows doesn't support gunicorn
+        # MacOS requires an env variable to be set to use gunicorn
+        run_on_windows(host, port, log_level, options, app)
+    else:
+        # Run using gunicorn on Linux
+        run_on_mac_or_linux(host, port, log_level, options, app, open_browser)
+
+
+def run_on_mac_or_linux(host, port, log_level, options, app, open_browser=True):
     webapp_process = Process(
         target=run_langflow, args=(host, port, log_level, options, app)
     )
@@ -169,6 +180,14 @@ def serve(
         webbrowser.open(f"http://{host}:{port}")
 
 
+def run_on_windows(host, port, log_level, options, app):
+    """
+    Run the Langflow server on Windows.
+    """
+    print_banner(host, port)
+    run_langflow(host, port, log_level, options, app)
+
+
 def setup_static_files(app: FastAPI, static_files_dir: Path):
     """
     Setup the static files directory.