# Spot the bug: Data Analytics

> One snippet. Find the bug, or prove there isn't one.

Daily challenge: 2026-08-19 (UTC) · Mid-Level

```python
import asyncio
import aiohttp

async def fetch_user_data(user_id: int) -> dict:
    async with aiohttp.ClientSession() as session:
        url = f"https://api.example.com/users/{user_id}"
        async with session.get(url) as resp:
            return await resp.json()

async def collect_profiles(user_ids: list[int]) -> list[dict]:
    profiles = []
    for uid in user_ids:
        data = fetch_user_data(uid)
        profiles.append(data)
    return profiles
```

## Your verdict

- Security flaw
- Logic bug
- Code style
- No issue

One attempt per day. The answer shows up right after.

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