package batch import ( "context" "strconv" "time" "golang.org/x/time/rate" "github.com/c9s/bbgo/pkg/types" ) type ClosedOrderBatchQuery struct { types.ExchangeTradeHistoryService } func (q *ClosedOrderBatchQuery) Query(ctx context.Context, symbol string, startTime, endTime time.Time, lastOrderID uint64) (c chan types.Order, errC chan error) { query := &AsyncTimeRangedBatchQuery{ Type: types.Order{}, Limiter: rate.NewLimiter(rate.Every(5*time.Second), 2), Q: func(startTime, endTime time.Time) (interface{}, error) { orders, err := q.ExchangeTradeHistoryService.QueryClosedOrders(ctx, symbol, startTime, endTime, lastOrderID) return orders, err }, T: func(obj interface{}) time.Time { return time.Time(obj.(types.Order).CreationTime) }, ID: func(obj interface{}) string { order := obj.(types.Order) if order.OrderID > lastOrderID { lastOrderID = order.OrderID } return strconv.FormatUint(order.OrderID, 10) }, } c = make(chan types.Order, 100) errC = query.Query(ctx, c, startTime, endTime) return c, errC }