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fix(groups): correct get_participants pagination #171

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Merged
chigwell merged 1 commit into from
Jul 28, 2026
Merged

fix(groups): correct get_participants pagination #171

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7 changes: 4 additions & 3 deletions telegram_mcp/tools/groups.py
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Original file line number Diff line number Diff line change
Expand Up @@ -243,12 +243,13 @@ async def get_participants(
cl = get_client(account)
await ensure_connected(cl)

# Use iter_participants with offset to fetch only the needed slice,
# avoiding O(N) fetching on later pages.
# iter_participants takes no `offset`, and its `limit` is not honoured
# for basic groups. Fetch through the page, then slice it out.
offset = (page - 1) * page_size
participants = []
async for participant in cl.iter_participants(chat_id, limit=page_size, offset=offset):
async for participant in cl.iter_participants(chat_id, limit=offset + page_size):
participants.append(participant)
participants = participants[offset : offset + page_size]

if not participants:
return format_tool_result([])
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