DX-1612: Read QSTASH_URL env variable (#35)

* feat: read QSTASH_URL env variable

* fix: get QSTASH_URL with .get

Author: CahidArda

qstash/asyncio/client.py

@@ -1,3 +1,4 @@
+from os import environ
 from typing import Literal, Optional, Union
 
 from qstash.asyncio.chat import AsyncChatApi
@@ -27,7 +28,7 @@ def __init__(
         self.http = AsyncHttpClient(
             token,
             retry,
-            base_url,
+            base_url or environ.get("QSTASH_URL"),
         )
         self.message = AsyncMessageApi(self.http)
         """Message api."""

qstash/client.py

@@ -1,3 +1,4 @@
+from os import environ
 from typing import Optional, Union, Literal
 
 from qstash.chat import ChatApi
@@ -28,7 +29,7 @@ def __init__(
         self.http = HttpClient(
             token,
             retry,
-            base_url,
+            base_url or environ.get("QSTASH_URL"),
         )
         self.message = MessageApi(self.http)
         """Message api."""