Add a /object_info/{node_class} route to get only the info of one node.

server.py

@@ -261,23 +261,34 @@ class PromptServer():
         async def get_prompt(request):
             return web.json_response(self.get_queue_info())
 
+        def node_info(node_class):
+            obj_class = nodes.NODE_CLASS_MAPPINGS[node_class]
+            info = {}
+            info['input'] = obj_class.INPUT_TYPES()
+            info['output'] = obj_class.RETURN_TYPES
+            info['output_is_list'] = obj_class.OUTPUT_IS_LIST if hasattr(obj_class, 'OUTPUT_IS_LIST') else [False] * len(obj_class.RETURN_TYPES)
+            info['output_name'] = obj_class.RETURN_NAMES if hasattr(obj_class, 'RETURN_NAMES') else info['output']
+            info['name'] = node_class
+            info['display_name'] = nodes.NODE_DISPLAY_NAME_MAPPINGS[node_class] if node_class in nodes.NODE_DISPLAY_NAME_MAPPINGS.keys() else node_class
+            info['description'] = ''
+            info['category'] = 'sd'
+            if hasattr(obj_class, 'CATEGORY'):
+                info['category'] = obj_class.CATEGORY
+            return info
+
         @routes.get("/object_info")
         async def get_object_info(request):
             out = {}
             for x in nodes.NODE_CLASS_MAPPINGS:
-                obj_class = nodes.NODE_CLASS_MAPPINGS[x]
-                info = {}
-                info['input'] = obj_class.INPUT_TYPES()
-                info['output'] = obj_class.RETURN_TYPES
-                info['output_is_list'] = obj_class.OUTPUT_IS_LIST if hasattr(obj_class, 'OUTPUT_IS_LIST') else [False] * len(obj_class.RETURN_TYPES)
-                info['output_name'] = obj_class.RETURN_NAMES if hasattr(obj_class, 'RETURN_NAMES') else info['output']
-                info['name'] = x
-                info['display_name'] = nodes.NODE_DISPLAY_NAME_MAPPINGS[x] if x in nodes.NODE_DISPLAY_NAME_MAPPINGS.keys() else x
-                info['description'] = ''
-                info['category'] = 'sd'
-                if hasattr(obj_class, 'CATEGORY'):
-                    info['category'] = obj_class.CATEGORY
-                out[x] = info
+                out[x] = node_info(x)
+            return web.json_response(out)
+
+        @routes.get("/object_info/{node_class}")
+        async def get_object_info_node(request):
+            node_class = request.match_info.get("node_class", None)
+            out = {}
+            if (node_class is not None) and (node_class in nodes.NODE_CLASS_MAPPINGS):
+                out[node_class] = node_info(node_class)
             return web.json_response(out)
 
         @routes.get("/history")