Type/to search
Built-in Functions
Global
Log
Market
Trade
Account
Futures
Exchange
exchange.GetName
exchange.GetLabel
exchange.GetCurrency
exchange.SetCurrency
exchange.GetQuoteCurrency
exchange.GetPeriod
exchange.SetMaxBarLen
exchange.SetPrecision
exchange.GetRate
exchange.SetRate
exchange.SetBase
exchange.GetBase
exchange.SetProxy
exchange.SetTimeout
exchange.Encode
IO
Network
Storage
Threads
TA
Talib
OS
Structures
Built-in Variables and Constants
Conventions
Exchanges

Switches the current trading pair of the exchange object exchange.


    
    
    
exchange.SetCurrency(currency)

Examples

Switch the trading pair and query the ticker and account before and after.


    javascript
    
    
function main() {
    var ticker = exchange.GetTicker()
    Log(ticker)
    Log(exchange.GetAccount())
    // Switch the trading pair, note the changes in market data and account information after
    // switching
    exchange.SetCurrency("LTC_USDT")
    Log("Switched to LTC_USDT")
    ticker = exchange.GetTicker()
    Log(ticker)
    Log(exchange.GetAccount())
}

    python
    
    
def main():
    ticker = exchange.GetTicker()
    Log(ticker)
    Log(exchange.GetAccount())
    exchange.SetCurrency("LTC_USDT")
    Log("Switched to LTC_USDT")
    ticker = exchange.GetTicker()
    Log(ticker)
    Log(exchange.GetAccount())

    rust
    
    
fn main() {
    let ticker = exchange.GetTicker(None).unwrap();
    Log!(ticker);
    Log!(exchange.GetAccount());
    // Switch the trading pair, note the changes in market data and account information after
    // switching
    exchange.SetCurrency("LTC_USDT");
    Log!("Switched to LTC_USDT");
    let ticker = exchange.GetTicker(None).unwrap();
    Log!(ticker);
    Log!(exchange.GetAccount());
}

Arguments

NameTypeRequiredDescription

currency

string

Yes

Trading pair to switch to. The trading pair format is uniformly uppercase, using an underscore to separate baseCurrency and quoteCurrency, for example: BTC_USDT. A few exchanges do not change the case and keep the pair as given; see "Trading Pairs and Contract Codes" on each exchange page.

See Also

exchange.GetCurrency

Remarks

Compatible with the exchange.IO("currency", "BTC_USDT") switching method, see exchange.IO for details.

Switching trading pairs is supported in the backtesting system, but when switching trading pairs in the backtesting system, the name of the quote currency cannot be changed. For example: BTC_USDT can be switched to LTC_USDT, but cannot be switched to LTC_BTC.

After switching to a trading pair other than the one initially set on the backtesting page, the amount of the base currency is 0. For example: during backtesting, the trading pair initially set on the backtesting page is BTC_USDT, with 3 BTC and 10000 USDT. If you immediately switch to LTC_USDT at this point, the amount of the base currency after switching is 0, i.e., the amount of LTC in the account is 0; the amount of USDT is shared after switching, i.e., the amount remains 10000.