aio-binance-library

Async library for connecting to the Binance API on Python

This is a lightweight library that works as a connector to Binance Futures public API

• Supported APIs:
  • USDT-M Futures `/fapi/*``
  • Futures/Delivery Websocket Market Stream
  • Futures/Delivery User Data Stream
• Inclusion of examples
• Response metadata can be displayed

Installation

pip install aio-binance-library

Getting started

REST API

Usage examples:

import asyncio
from aio_binance.futures.usdt import Client 

async def main():
    client = Client()
    res = await client.get_public_time()
    print(res)

    client = Client(key='<api_key>', secret='<api_secret>')

    # Get account information
    res = await client.get_private_account_info()
    print(res)

    # Post a new order
    params = {
        'symbol': 'BTCUSDT',
        'side': 'SELL',
        'type_order': 'LIMIT',
        'time_in_force': 'GTC',
        'quantity': 0.002,
        'price': 59808
    }

    res = await client.create_private_order(**params)
    print(res)

asyncio.run(main())

Or you can use session (For multiple requests, this acts faster):

import asyncio
from aio_binance.futures.usdt import ApiSession 

async def main():
  
    async with ApiSession(key='<api_key>', secret='<api_secret>') as session:
      
        res = await session.get_public_time()
        print(res)
    
        # Get account information
        res = await session.get_private_account_info()
        print(res)
    
        # Post a new order
        params = {
            'symbol': 'BTCUSDT',
            'side': 'SELL',
            'type_order': 'LIMIT',
            'time_in_force': 'GTC',
            'quantity': 0.002,
            'price': 59808
        }
    
        res = await session.create_private_order(**params)
        print(res)

asyncio.run(main())

Please find examples folder to check for more endpoints.

Notes

The methods you need, adheres to a hierarchy

<method>_<availability>_<method_name>

create_private_order()
or
get_public_time()

Methods:

create, get, delete, change, update

Availability:

private - methods where key_api and secret_api are required

public - you can get information without a key

Testnet

You can choose testnet

from aio_binance.futures.usdt import Client

client= Client(testnet=True)

Optional parameters

Parameters can be passed in different formats as in Binance api documents or PEP8 suggests lowercase with words separated by underscores

# Binance api
response = await client.get_private_open_order('BTCUSDT', orderListId=1)

# PEP8
response = await client.get_private_open_order('BTCUSDT', order_list_id=1)

Timeout

timeout is available to be assigned with the number of seconds you find most appropriate to wait for a server response.
Please remember the value as it won't be shown in error message no bytes have been received on the underlying socket for timeout seconds.
By default, timeout=5

from aio_binance.futures.usdt import Client

client= Client(timeout=1)

Response Metadata

The Binance API server provides weight usages in the headers of each response. You can display them by initializing the client with show_limit_usage=True:

from aio_binance.futures.usdt import Client

client = Client(show_limit_usage=True)
res = await client.time()
print(res)

returns:

{'data': {'serverTime': 1647990837551}, 'limit_usage': 40}

You can also display full response metadata to help in debugging:

client = Client(show_header=True)
res = await client.time()
print(res)

returns:

{'data': {'serverTime': 1587990847650}, 'header': {'Context-Type': 'application/json;charset=utf-8', ...}}

User agent

client = Client(agent='name_app')

You can pass the name of your application.

Websocket

This is an example of connecting to multiple streams

import asyncio

from aio_binance.futures.usdt import WsClient


async def callback_event(data: dict):
    print(data)


async def main():

    ws = WsClient()
    stream = [
        ws.stream_liquidation_order(),
        ws.stream_book_ticker(),
        ws.stream_ticker('BTCUSDT')
    ]
    res = await asyncio.gather(*stream)
    await ws.subscription_streams(res, callback_event)

asyncio.run(main())

More websocket examples are available in the examples folder

Note

Stream methods start with the word stream Example: stream_<name_method>

Subscribing to multiple streams: subscription_streams()

Heartbeat

Once connected, the websocket server sends a ping frame every 3 minutes and requires a response pong frame back within a 5 minutes period. This package handles the pong responses automatically.