tab for switching flow

routes.py

@@ -146,14 +146,19 @@ async def get_webhook(request):
 
 @server.PromptServer.instance.routes.post("/input_file")
 async def post_input_file(request):
-    post = await request.read()
+    post = await request.json()
+    image_url = post.get("image_url")
     
-    output_dir = os.path.join(folder_paths.base_path, "input")
+    input_dir = os.path.join(folder_paths.base_path, "input")
     os.makedirs(output_dir, exist_ok=True)
     
-    filename = os.path.join(output_dir, "imagefromai.png")
+    filename = os.path.join(input_dir, "imagefromai.png")
+    
+    response = requests.get(image_url)
+    response.raise_for_status()
+    
     with open(filename, "wb") as f:
-        f.write(post)
+        f.write(response.content)  # Save the image from the URL to the output directory
     
     return web.json_response({})