Python menggunakan asyncio http untuk mendapatkan contoh data industri

Penulis:Nobel, Tarikh: 2022-02-02 17:21:06
Tag:

Asynchronousity yang sebenar, sebenarnya untuk mendapatkan pasaran ini cukup dengan asynchronousity, selepas isyarat muncul, tindakan yang dijalankan oleh acara yang berkaitan dengan mata wang, yang disinkronkan dengan platform yang dibungkus cukup. memerlukan python 3.61 dan perpustakaan yang sesuai


'''backtest
start: 2021-11-04 00:00:00
end: 2022-02-01 00:00:00
period: 1h
basePeriod: 15m
'''

import time
import asyncio
from aiohttp import ClientSession
import time
import datetime
global tasks
tasks = []

async def fetch_exchangeinfo():
    exchangeinfo="https://fapi.binance.com//fapi/v1/exchangeInfo"
    async with ClientSession() as session:
        async with session.get(exchangeinfo) as response:
            result=await response.read()
            Log(result.text, time.time())
            return result
            

async def fetch_depth(symbol,limit):
    symbol_depth="https://fapi.binance.com//fapi/v1/depth?symbol="+str(symbol)+"&limit="+str(limit)
    async with ClientSession() as session:
        async with session.get(symbol_depth) as response:
            result=await response.read()
            Log(result.text, time.time())
            return result
            

async def fetch_klines(symbol,interval,limit):
    symbol_kline="https://fapi.binance.com//fapi/v1/klines?symbol="+str(symbol)+"&interval="+str(interval)+"&limit="+str(limit)
    async with ClientSession() as session:
        async with session.get(symbol_kline) as response:
            result = await response.read()
            Log(symbol,result, time.time())
            return result
           
async def fetch_all_ticker():
    all_symbol_ticker = "https://fapi.binance.com/fapi/v1/ticker/price"
    async with ClientSession() as session:
        async with session.get(all_symbol_ticker) as response:
            result = await response.read()
            Log(result.text, time.time())
            return result
            

def main():
    while True:
        Log(datetime.datetime.now(),'开始')
        symbol_list=['BTCUSDT','ETHUSDT','BNBUSDT','ETCUSDT','EOSUSDT','SANDUSDT','XRPUSDT','ADAUSDT','GALAUSDT','IOTXUSDT','BNBUSDT','MATICUSDT']
        for i in range(12):
            task = asyncio.ensure_future(fetch_klines(symbol_list[i],'15m',500))
            tasks.append(task)
        loop = asyncio.get_event_loop()
        result = loop.run_until_complete(asyncio.gather(*tasks))
        Log(datetime.datetime.now(),'完成')
        Sleep(1000)

    

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