While running my code I keep getting the same error, qty invalid but I'm giving it the minimum required value and got enough balance on the account as you can see.
Already checked out a lot of issues on google but couldn't find this specific error.
Starting USDT balance: 99.97 No BTC in the account. Buying 0.001 BTC... Placing market buy order for 0.00100000 BTC at 28254.80 USDT/BTC Order response: {'ret_code': 10001, 'ret_msg': 'params error: qty invalid', 'result': {}, 'ext_code': '', 'ext_info': '', 'time_now': '1680641484.301085', 'rate_limit_status': 99, 'rate_limit': 100, 'rate_limit_reset_ms': 1680641484300}
Python Code:
import requests import time import hmac import hashlib from urllib.parse import urlencode # API keys API_KEY = 'API KEY' API_SECRET = 'API SECRET' # Base URLs BYBIT_BASE_URL = ' # Constants SYMBOL = 'BTCUSDT' ORDER_TYPE = 'Market' FIXED_ORDER_QTY_BTC = 0.001 QUANTITY_STEP_SIZE = 0.001 def generate_signature(secret, params): query_string = urlencode(sorted(params.items())) hmac_sha256 = hmac.new(secret.encode('utf-8'), query_string.encode('utf-8'), hashlib.sha256) return hmac_sha256.hexdigest() def get_balance(coin): timestamp = int(time.time() * 1000) params = { 'api_key': API_KEY, 'timestamp': timestamp, 'coin': coin } params['sign'] = generate_signature(API_SECRET, params) url = f"{BYBIT_BASE_URL}/v2/private/wallet/balance" response = requests.get(url, params=params) return response.json() def place_order(side, qty, order_type): timestamp = int(time.time() * 1000) params = { 'api_key': API_KEY, 'timestamp': timestamp, 'symbol': SYMBOL, 'side': side, 'order_type': order_type, 'qty': qty, 'time_in_force': 'GoodTillCancel', 'reduce_only': False } params['sign'] = generate_signature(API_SECRET, params) url = f"{BYBIT_BASE_URL}/v2/private/order/create" response = requests.post(url, data=params) return response.json() def get_ticker_price(symbol): url = f"{BYBIT_BASE_URL}/v2/public/tickers?symbol={symbol}" response = requests.get(url) return response.json() def main(): # Get current USDT balance usdt_balance = float(get_balance('USDT')['result']['USDT']['available_balance']) print(f"Starting USDT balance: {usdt_balance:.2f}") # Check if BTC balance is zero btc_balance = float(get_balance('BTC')['result']['BTC']['available_balance']) if btc_balance == 0: print(f"No BTC in the account. Buying {FIXED_ORDER_QTY_BTC} BTC...") ticker_price = float(get_ticker_price(SYMBOL)['result'][0]['last_price']) order_qty = round(FIXED_ORDER_QTY_BTC / QUANTITY_STEP_SIZE) * QUANTITY_STEP_SIZE print(f"Placing market buy order for {order_qty:.8f} BTC at {ticker_price:.2f} USDT/BTC") response = place_order('Buy', order_qty, ORDER_TYPE) print(f"Order response: {response}") while True: # Get current BTC balance btc_balance = float(get_balance('BTC')['result']['BTC']['available_balance']) if btc_balance >= order_qty: print(f"Bought {order_qty:.8f} BTC") break else: print("Waiting for BTC to be bought...") time.sleep(10) # Get updated USDT balance usdt_balance = float(get_balance('USDT')['result']['USDT']['available_balance']) print(f"Updated USDT balance: {usdt_balance:.2f}") if __name__ == '__main__': main() Trying to buy the minimum amount of BTC through the API.
1 Answer
Here you can just use this code from official bybit api testing, just remove test from endpoint and put your api info
import requests import time import hashlib import hmac import uuid api_key='XXXXXXXXX' secret_key='XXXXXXXXX' httpClient=requests.Session() recv_window=str(5000) url="" # Testnet endpoint def HTTP_Request(endPoint,method,payload,Info): global time_stamp time_stamp=str(int(time.time() * 10 ** 3)) signature=genSignature(payload) headers = { 'X-BAPI-API-KEY': api_key, 'X-BAPI-SIGN': signature, 'X-BAPI-SIGN-TYPE': '2', 'X-BAPI-TIMESTAMP': time_stamp, 'X-BAPI-RECV-WINDOW': recv_window, 'Content-Type': 'application/json' } if(method=="POST"): response = httpClient.request(method, url+endPoint, headers=headers, data=payload) else: response = httpClient.request(method, url+endPoint+"?"+payload, headers=headers) print(response.text) print(Info + " Elapsed Time : " + str(response.elapsed)) def genSignature(payload): param_str= str(time_stamp) + api_key + recv_window + payload hash = hmac.new(bytes(secret_key, "utf-8"), param_str.encode("utf-8"),hashlib.sha256) signature = hash.hexdigest() return signature #Create Order endpoint="/contract/v3/private/order/create" method="POST" orderLinkId=uuid.uuid4().hex params='{"symbol": "BTCUSDT","side": "Buy","positionIdx": 1,"orderType": "Limit","qty": "0.001","price": "10000","timeInForce": "GoodTillCancel","orderLinkId": "' + orderLinkId + '"}' HTTP_Request(endpoint,method,params,"Create") #Get unfilled Orders endpoint="/contract/v3/private/order/unfilled-orders" method="GET" params='settleCoin=USDT' HTTP_Request(endpoint,method,params,"UnFilled") #Get Order List endpoint="/contract/v3/private/order/list" method="GET" params="symbol=BTCUSDT&orderStatus=New&orderLinkId="+orderLinkId HTTP_Request(endpoint,method,params,"List") #Cancel Order endpoint="/contract/v3/private/order/cancel" method="POST" params='{"symbol": "BTCUSDT","orderLinkId": "'+orderLinkId+'"}' HTTP_Request(endpoint,method,params,"Cancel") 
