diff --git a/uapi/appapi.py b/uapi/appapi.py
index 4114a2f..68872e5 100644
--- a/uapi/appapi.py
+++ b/uapi/appapi.py
@@ -123,13 +123,13 @@ class UAPI:
 		self.auth_ret = None
 		self.sor = sor
 	
-	def rendertmpl(self, tmplstr, params={}):
+	async def rendertmpl(self, tmplstr, params={}):
 		if tmplstr is None:
 			return None
 		ns = self.env.copy()
 		ns.update(params)
-		te = MyTemplateEngine([], env=self.env)
-		return te.renders(tmplstr, ns)
+		te = self.env.tmpl_engine
+		return await te.renders(tmplstr, ns)
 
 	async def get_uapis(self, sor, upappid, apiname, callerid, params={}):
 		self.env.update(params)
@@ -186,7 +186,7 @@ class UAPI:
 				if self.uapi.response:
 					try:
 						dic = json.loads(line)
-						line = self.rendertmpl(self.uapi.response, dic)
+						line = await self.rendertmpl(self.uapi.response, dic)
 						line = self.filter_nl_cr(line)
 					except Exception as e:
 						debug(f'{line=}, {self.uapi.response=} error({e})\n{format_exc()}')
@@ -202,7 +202,7 @@ class UAPI:
 			b += chunk
 		if self.uapi.response:
 			dic = json.loads(b.decode('utf-8'))
-			s = self.rendertmpl(self.uapi.response, dic)
+			s = await self.rendertmpl(self.uapi.response, dic)
 			b = s.encode('utf-8')
 		return b
 
@@ -212,22 +212,22 @@ class UAPI:
 			b+= chunk
 		d = json.loads(b.encode('utf-8'))
 		if auth_uapi.response:
-			s = self.rendertmpl(auth_uapi.response, d)
+			s = await self.rendertmpl(auth_uapi.response, d)
 			d = json.loads(s)
 		self.env.update(d)
 		return
 	
 	async def stream_resp(self, api):
-		path = self.rendertmpl(api.path)
+		path = await self.rendertmpl(api.path)
 		url = self.env.get('baseurl') + path
 		method = api.httpmethod
-		headers = self.rendertmpl(api.headers)
+		headers = await self.rendertmpl(api.headers)
 		try:
 			headers = json.loads(headers)
 		except Exception as e:
 			exception(f'{e}, {headers=},{api.headers=}')
 			raise e
-		body = self.rendertmpl(api.data)
+		body = await self.rendertmpl(api.data)
 		if body:
 			try:
 				bdy = json.loads(body)
@@ -235,7 +235,7 @@ class UAPI:
 			except Exception as e:
 				exception(f'{e}, {body=},{api.data=}')
 				body = None
-		_params = self.rendertmpl(api.params)
+		_params = await self.rendertmpl(api.params)
 		if _params:
 			_params = json.loads(_params)
 		debug(f'{headers=}, {body=}. {method=}, {url=}')