38 lines
988 B
Go
38 lines
988 B
Go
package batch
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import (
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"context"
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"strconv"
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"time"
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"git.qtrade.icu/lychiyu/bbgo/pkg/types"
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)
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type KLineBatchQuery struct {
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types.Exchange
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}
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func (e *KLineBatchQuery) Query(ctx context.Context, symbol string, interval types.Interval, startTime, endTime time.Time) (c chan types.KLine, errC chan error) {
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query := &AsyncTimeRangedBatchQuery{
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Type: types.KLine{},
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Limiter: nil, // the rate limiter is handled in the exchange query method
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Q: func(startTime, endTime time.Time) (interface{}, error) {
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return e.Exchange.QueryKLines(ctx, symbol, interval, types.KLineQueryOptions{
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StartTime: &startTime,
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EndTime: &endTime,
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})
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},
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T: func(obj interface{}) time.Time {
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return time.Time(obj.(types.KLine).StartTime)
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},
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ID: func(obj interface{}) string {
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kline := obj.(types.KLine)
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return strconv.FormatInt(kline.StartTime.UnixMilli(), 10)
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},
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}
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c = make(chan types.KLine, 3000)
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errC = query.Query(ctx, c, startTime, endTime)
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return c, errC
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}
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