Test the rate limit of MEXC

test_rate_limit.py

import hmac
import hashlib
import time
import httpx
import pprint
import datetime

pp = pprint.PrettyPrinter(indent=4)

def create_message() -> str:
    symbol = "WBTCUSDT"
    side = "BUY"
    order_type = "FILL_OR_KILL"
    quantity = "1"
    price = "11"
    recv_window = "10000"
    timestamp = int(time.time() * 1000)
    
    message = f"symbol={symbol}&side={side}&type={order_type}&quantity={quantity}&price={price}&recvWindow={recv_window}&timestamp={timestamp}"
    return message

def sign_message(message: str, secret_key: str) -> str:
    signature = hmac.new(secret_key.encode(), message.encode(), hashlib.sha256).hexdigest()
    return signature

def add_signature_to_message(message: str, signature: str) -> str:
    message += f"&signature={signature}"
    return message

def main():
    api_key = "api_key"
    secret_key = "secret_key"

    for i in range(2):
        message = create_message()
        signature = sign_message(message, secret_key)
        signed_message = add_signature_to_message(message, signature)
    
        url = f'https://api.mexc.com/api/v3/order?{signed_message}'
        headers = {"X-MEXC-APIKEY": api_key}
        
        pp.pprint(f"Sending request N.{i} at {datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f')}")
        response = httpx.post(url, headers=headers)
        pp.pprint(f"Receiving request N.{i} at {datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f')}")
        pp.pprint("Response")
        pp.pprint(response.json())
        print("\n")
        
        time.sleep(10)

if __name__ == "__main__":
    main()