Code that previously worked with Binance API is no longer working ( ccxt.base.errors.NotSupported: binance does not have a testnet/sandbox URL for sapi endpoints)

• OS : Ubuntu 19.10 (Linux)
• Programming Language version: Python 3.7
• CCXT version: 1.34.38

Hi,

I had some code that was working before but is no longer working now.

The problem seems to be with: exchange.sapi_post_futures_transfer

Before, for me, it worked on both TEST and PROD servers. But now, when running it on TEST, I get the following error: ccxt.base.errors.NotSupported: binance does not have a testnet/sandbox URL for sapi endpoints

Question: Has something changed? If so, what can one do to fix the problem?

TIA

This is how I am connecting to the server:

    def __init__( self, client_id : int = 0, exchange_type : str =  t_bin_param.BIN_TRADE_SPOT, \
                    binance_server_mode : str = 'TEST' ):

        if not ( client_id > 0 and binance_server_mode == 'TEST' or binance_server_mode == 'PROD'):
            raise ValueError ( '-29553', ' data passed in not valid ' + str ( self.binance_server_mode ))

        if not ( exchange_type == t_bin_param.BIN_TRADE_SPOT  or exchange_type == t_bin_param.BIN_TRADE_MARGIN or \
                exchange_type == t_bin_param.BIN_TRADE_FUTURES ):
            raise ValueError ( '-48593', ' data passed in not valid ' + str ( self.binance_server_mode ))

        self.client_id                = client_id
        self.exchange_type     = exchange_type
        self.server_mode        = binance_server_mode

        # get the logoin paramters
        self.__exchange_server_login( )
        return

def __exchange_server_login( self ):

  [... snip ...[
   elif ( self.exchange_type == t_bin_param.BIN_TRADE_FUTURES ):
        self.exchange = ccxt.binance({
            'apiKey': FUTURES_LD_API_KEY, 'secret': FUTURES_LD_API_SECRET, 'timeout': 30000, 'enableRateLimit': True,
            'rateLimit': 250, 'options': { 'defaultType': 'future', 'adjustForTimeDifference': True,},
        })
        logging.info("\t->TRADE ACCOUNT: FUTURES")

    if ( self.server_mode == 'TEST' ):
        self.exchange.set_sandbox_mode(True) # TESTING SANDBOX

    #self.exchange.verbose = True  # UNCOMMENT THIS AFTER LOADING THE MARKETS FOR DEBUGGING
    self.exchange.load_markets()
 [... snitp ...]

Below is the code that is actually running:

            in_symbol          = in_symbol.upper()
            base_currency      = in_symbol.split('/')[0] # like BTC
            quote_currency     = in_symbol.split('/')[1] # like USDT

            code        = quote_currency
            amount      = float( in_amount  )
            currency    = self.exchange.currency(code)

            transfer_value = 3          # assume it is going FROM: SPOT TO: a COIN- futures account
            if ( code == 'USDT' ):
                transfer_value = 1      # assume it is going FROM: SPOT TO: a USDT futures account

            in_symbol = in_symbol.replace("/", "")
            response = self.exchange.sapi_post_futures_transfer({
                'asset' : currency['id'],
                'amount': self.exchange.amount_to_precision( in_symbol,  abs( float( amount)) ),
                'type'  : transfer_value })

            print('Moving', code, 'funds from your spot account to your futures account')

**But am receiving the following error BUT it used to work: **

ERROR: ccxt.base.errors.NotSupported: binance does not have a testnet/sandbox URL for sapi endpoints

ERR-FEC3A96B8   Traceback (most recent call last):
  File "/root/trade_exchange/api_work/trade_binance/bin_kroitor.py", line 306, in money_move_from_futures_to_spot
    'type'  : transfer_value })
  File "/usr/local/lib/python3.7/dist-packages/ccxt/base/exchange.py", line 465, in inner
    return entry(_self, **inner_kwargs)
  File "/usr/local/lib/python3.7/dist-packages/ccxt/binance.py", line 2363, in request
    response = self.fetch2(path, api, method, params, headers, body)
  File "/usr/local/lib/python3.7/dist-packages/ccxt/base/exchange.py", line 485, in fetch2
    request = self.sign(path, api, method, params, headers, body)
  File "/usr/local/lib/python3.7/dist-packages/ccxt/binance.py", line 2252, in sign
    raise NotSupported(self.id + ' does not have a testnet/sandbox URL for ' + api + ' endpoints')
ccxt.base.errors.NotSupported: binance does not have a testnet/sandbox URL for sapi endpoints

[kroitor]

@dpalmeira thanks for your feedback, appreciate it!

[dpalmeira]

Yeahh!! It works well again with the v 1.42.10 (I tested your example, plus my original code)

Thank you so much for your help @kroitor it was really a fast fix!