package retry import ( "context" "git.qtrade.icu/lychiyu/qbtrade/pkg/types" ) func QueryTickerUntilSuccessful(ctx context.Context, ex types.Exchange, symbol string) (ticker *types.Ticker, err error) { var op = func() (err2 error) { ticker, err2 = ex.QueryTicker(ctx, symbol) return err2 } err = GeneralBackoff(ctx, op) return ticker, err }