From c3cc84fa1893aa3aa1cb41eea0e93857312eb923 Mon Sep 17 00:00:00 2001
From: "Dr.Lt.Data" <dr.lt.data@gmail.com>
Date: Mon, 30 Dec 2024 04:06:26 +0900
Subject: [PATCH] feat: preview method endpoint

* post method `/preview_method` is added

https://github.com/comfyanonymous/ComfyUI/issues/6205
---
 server.py | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/server.py b/server.py
index 2dc53b9d..7eebf215 100644
--- a/server.py
+++ b/server.py
@@ -33,6 +33,7 @@ from app.model_manager import ModelFileManager
 from app.custom_node_manager import CustomNodeManager
 from typing import Optional
 from api_server.routes.internal.internal_routes import InternalRoutes
+import latent_preview
 
 class BinaryEventTypes:
     PREVIEW_IMAGE = 1
@@ -692,6 +693,26 @@ class PromptServer():
 
             return web.Response(status=200)
 
+        @routes.post("/preview_method")
+        async def preview_method(request):
+            json_data =  await request.json()
+
+            if "value" in json_data:
+                method = json_data['value']
+
+                if method == 'auto':
+                    args.preview_method = latent_preview.LatentPreviewMethod.Auto
+                elif method == 'latent2rgb':
+                    args.preview_method = latent_preview.LatentPreviewMethod.Latent2RGB
+                elif method == 'taesd':
+                    args.preview_method = latent_preview.LatentPreviewMethod.TAESD
+                else:
+                    args.preview_method = latent_preview.LatentPreviewMethod.NoPreviews
+
+                return web.Response(status=200)
+
+            return web.Response(status=400)
+
     async def setup(self):
         timeout = aiohttp.ClientTimeout(total=None) # no timeout
         self.client_session = aiohttp.ClientSession(timeout=timeout)