Fix #1305 by fixing pagination with async for syntax (#1308)

* Fix #1305 by fixing pagination with async for syntax

* Remove unnecessary imports

integration_tests/web/test_issue_1305.py

@@ -0,0 +1,49 @@
+import asyncio
+import os
+import time
+import unittest
+
+from integration_tests.env_variable_names import SLACK_SDK_TEST_GRID_ORG_ADMIN_USER_TOKEN
+from integration_tests.helpers import async_test
+from slack_sdk.web import WebClient
+from slack_sdk.web.async_client import AsyncWebClient
+
+
+class TestWebClient(unittest.TestCase):
+    """Runs integration tests with real Slack API
+
+    https://github.com/slackapi/python-slack-sdk/issues/1305
+    """
+
+    def setUp(self):
+        self.org_admin_token = os.environ[SLACK_SDK_TEST_GRID_ORG_ADMIN_USER_TOKEN]
+        self.sync_client: WebClient = WebClient(token=self.org_admin_token)
+        self.async_client: AsyncWebClient = AsyncWebClient(token=self.org_admin_token)
+
+    def tearDown(self):
+        pass
+
+    def test_sync(self):
+        client = self.sync_client
+        count = 0
+
+        for page in client.admin_conversations_search(limit=1):
+            count += len(page["conversations"])
+            if count > 1:
+                break
+            time.sleep(1)
+
+        self.assertGreater(count, 0)
+
+    @async_test
+    async def test_async(self):
+        client = self.async_client
+        count = 0
+
+        async for page in await client.admin_conversations_search(limit=1):
+            count += len(page["conversations"])
+            if count > 1:
+                break
+            await asyncio.sleep(1)
+
+        self.assertGreater(count, 0)

slack_sdk/web/async_slack_response.py

@@ -145,7 +145,8 @@ async def __anext__(self):
             params = self.req_args.get("params", {})
             if params is None:
                 params = {}
-            params.update({"cursor": self.data["response_metadata"]["next_cursor"]})
+            next_cursor = self.data.get("response_metadata", {}).get("next_cursor") or self.data.get("next_cursor")
+            params.update({"cursor": next_cursor})
             self.req_args.update({"params": params})
 
             response = await self._client._request(  # skipcq: PYL-W0212