diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3bbe7b6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+__pycache__/
+*.pyc
+*.pyo
diff --git a/scripts/__pycache__/load_path.cpython-310.pyc b/scripts/__pycache__/load_path.cpython-310.pyc
deleted file mode 100644
index 18709d7..0000000
Binary files a/scripts/__pycache__/load_path.cpython-310.pyc and /dev/null differ
diff --git a/unipay/providers/wechat.py b/unipay/providers/wechat.py
index 55f359d..9e34947 100644
--- a/unipay/providers/wechat.py
+++ b/unipay/providers/wechat.py
@@ -172,9 +172,14 @@ class WechatGateway(Gateway):
 				"Content-Type": "application/json"
 			}) as resp:
 				ret = await resp.json()
-				return ret.get("h5_url")
-
-		return None
+				if resp.status != 200:
+					err_code = ret.get("code", "UNKNOWN")
+					err_msg = ret.get("message", str(ret))
+					raise Exception(f"WeChat API error (HTTP {resp.status}): [{err_code}] {err_msg}")
+				h5_url = ret.get("h5_url")
+				if not h5_url:
+					raise Exception(f"WeChat API response missing h5_url: {json.dumps(ret, ensure_ascii=False)}")
+				return h5_url
 
 	# -----------------------------------------------------
 	async def refund(self, payload: Dict[str, Any]) -> Dict[str, Any]: