Async_code_2 for downloading json (with aiofiles)

async_code_2.py

import asyncio
import aiohttp
# import json
import aiofiles
import config 

async def store_json_2(symbol):
  print(f'============downloading {symbol} json data ============')
  payload = {
    'function': 'TIME_SERIES_DAILY_ADJUSTED',
    'symbol': symbol,
    'outputsize': 'full',
    'apikey': config.ALPHA_API_KEY,
    # AA api default data type is json, another option is csv
    'datatype': 'json'
  }
  async with aiohttp.ClientSession() as session: 
    async with session.get('https://www.alphavantage.co/query?', params=payload) as r:
      data = await r.text()
  async with aiofiles.open(f'./data/data_{symbol}.json', 'w') as outfile:
    await outfile.write(data)