add history url

go.mod

@@ -46,6 +46,7 @@ require (
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/jszwec/csvutil v1.10.0
 	github.com/klauspost/compress v1.17.11 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect

internal/domain/blockchain/binance.go

@@ -0,0 +1,4 @@
+package blockchain
+
+const BinanceHistoryDataBase = "https://data.binance.vision"
+const BinanceHistoryDataKlines = "/data/spot/daily/klines"

internal/domain/blockchain/const.go

@@ -1,5 +1,4 @@
 package blockchain
 
 const RedisKeySymbolList = "symbol:all"
-
 const SymbolExpire = 3600 // 秒(目前為一小時)

internal/repository/data_source_binance.go

@@ -6,6 +6,7 @@ import (
 	"blockchain/internal/domain/blockchain"
 	"blockchain/internal/domain/entity"
 	"blockchain/internal/domain/repository"
+	"bytes"
 	"context"
 	"encoding/csv"
 	"encoding/json"
@@ -14,11 +15,11 @@ import (
 	"net/http"
 	"os"
 	"path/filepath"
-	"strconv"
 	"strings"
-	"time"
+	"sync"
 
 	"github.com/adshao/go-binance/v2"
+	"github.com/jszwec/csvutil"
 	"github.com/zeromicro/go-zero/core/logx"
 	"github.com/zeromicro/go-zero/core/stores/redis"
 	"github.com/zeromicro/go-zero/core/syncx"
@@ -132,86 +133,123 @@ func (repo *BinanceRepository) getSymbolsFromSource(ctx context.Context) ([]bina
 	return info.Symbols, nil
 }
 
-func (repo *BinanceRepository) FetchHistoryKline(ctx context.Context, symbol string, interval string, startMillis, endMillis int64) ([]*entity.Kline, error) {
+func (repo *BinanceRepository) fetchHistoryKline(ctx context.Context, symbol string, interval string, date string) ([]*entity.Kline, error) {
-	const baseURL = "https://data.binance.vision/data/spot/daily/klines"
+	baseURL := fmt.Sprintf("%s%s", blockchain.BinanceHistoryDataBase, blockchain.BinanceHistoryDataKlines)
-	// 計算時間範圍
-	var startDate, endDate time.Time
-	if startMillis == 0 {
-		// 若沒指定，直接假設 2009-01-01（比特幣最早有記錄的位置，其他幣不太可能早過這個）
-		startDate = time.Date(2009, 1, 1, 0, 0, 0, 0, time.UTC)
-	} else {
-		startDate = time.UnixMilli(startMillis)
-	}
-	if endMillis == 0 {
-		endDate = time.Now()
-	} else {
-		endDate = time.UnixMilli(endMillis)
-	}
 	symbol = strings.ToUpper(symbol)
+	zipFile := fmt.Sprintf("%s-%s-%s.zip", symbol, interval, date)
+	url := fmt.Sprintf("%s/%s/%s/%s", baseURL, symbol, interval, zipFile)
+
+	// 先 HEAD 確認檔案是否存在，節省流量
+	respHead, err := http.Head(url)
+	if err != nil || respHead.StatusCode != 200 {
+		return nil, fmt.Errorf("file not found: %s", url)
+	}
+
+	// 下載 zip
+	resp, err := http.Get(url)
+	if err != nil || resp.StatusCode != 200 {
+		if resp != nil {
+			resp.Body.Close()
+		}
+		return nil, fmt.Errorf("failed to fetch file %s", url)
+	}
+	tmpPath := filepath.Join(os.TempDir(), zipFile)
+	out, err := os.Create(tmpPath)
+	if err != nil {
+		resp.Body.Close()
+		return nil, err
+	}
+	_, _ = io.Copy(out, resp.Body)
+	out.Close()
+	resp.Body.Close()
+
+	// 解壓縮
+	r, err := zip.OpenReader(tmpPath)
+	if err != nil {
+		os.Remove(tmpPath)
+		return nil, err
+	}
+	defer r.Close()
+	defer os.Remove(tmpPath)
 
 	var result []*entity.Kline
+	header := []string{
+		"open_time", "open", "high", "low", "close", "volume", "close_time",
+		"quote_asset_volume", "number_of_trades", "taker_buy_base_asset_volume",
+		"taker_buy_quote_asset_volume", "ignore",
+	}
 
-	// 逐天下載
+	for _, f := range r.File {
-	for d := startDate; !d.After(endDate); d = d.AddDate(0, 0, 1) {
+		rc, err := f.Open()
-		select {
-		case <-ctx.Done():
-			return result, ctx.Err()
-		default:
-		}
-		dateStr := d.Format("2006-01-02")
-		zipFile := fmt.Sprintf("%s-%s-%s.zip", symbol, interval, dateStr)
-		url := fmt.Sprintf("%s/%s/%s/%s", baseURL, symbol, interval, zipFile)
-
-		resp, err := http.Get(url)
-		if err != nil || resp.StatusCode != 200 {
-			continue // 檔案不存在就跳過
-		}
-		tmpPath := filepath.Join(os.TempDir(), zipFile)
-		out, _ := os.Create(tmpPath)
-		io.Copy(out, resp.Body)
-		out.Close()
-		resp.Body.Close()
-
-		// 解壓縮
-		r, err := zip.OpenReader(tmpPath)
 		if err != nil {
-			os.Remove(tmpPath)
 			continue
 		}
-		for _, f := range r.File {
+
-			rc, _ := f.Open()
+		var buf bytes.Buffer
-			reader := csv.NewReader(rc)
+		writer := csv.NewWriter(&buf)
-			for {
+		_ = writer.Write(header)
-				record, err := reader.Read()
+		reader := csv.NewReader(rc)
-				if err == io.EOF {
+		for {
-					break
+			record, err := reader.Read()
-				}
+			if err == io.EOF {
-				if err != nil || len(record) < 12 {
+				break
-					continue
-				}
-				ot, _ := strconv.ParseInt(record[0], 10, 64)
-				ct, _ := strconv.ParseInt(record[6], 10, 64)
-				num, _ := strconv.Atoi(record[8])
-				result = append(result, &entity.Kline{
-					OpenTime:                 ot,
-					Open:                     record[1],
-					High:                     record[2],
-					Low:                      record[3],
-					Close:                    record[4],
-					Volume:                   record[5],
-					CloseTime:                ct,
-					QuoteAssetVolume:         record[7],
-					NumberOfTrades:           num,
-					TakerBuyBaseAssetVolume:  record[9],
-					TakerBuyQuoteAssetVolume: record[10],
-					Ignore:                   record[11],
-				})
 			}
-			rc.Close()
+			if err != nil || len(record) < 12 {
+				continue
+			}
+			_ = writer.Write(record)
 		}
-		r.Close()
+		writer.Flush()
-		os.Remove(tmpPath)
+		rc.Close()
+
+		// csvutil parse
+		var klines []*entity.Kline
+		if err := csvutil.Unmarshal(buf.Bytes(), &klines); err != nil {
+			continue
+		}
+		// 可根據需要加上 symbol/interval
+		for _, k := range klines {
+			k.Symbol = symbol
+			k.Interval = interval
+		}
+		result = append(result, klines...)
 	}
 
 	return result, nil
 }
+
+func (repo *BinanceRepository) FetchHistoryKline(ctx context.Context, symbol string, interval string, startMillis, endMillis int64) ([]*entity.Kline, error) {
+	ch := make(chan []*entity.Kline, poolSize)
+	var wg sync.WaitGroup
+
+	pool, _ := ants.NewPool(poolSize)
+	defer pool.Release()
+
+	// 產生所有天的任務
+	for d := startDate; !d.After(endDate); d = d.AddDate(0, 0, 1) {
+		day := d
+		wg.Add(1)
+		_ = pool.Submit(func() {
+			defer wg.Done()
+			klines, err := fetchOneDayKline(ctx, symbol, interval, day)
+			if err == nil && len(klines) > 0 {
+				ch <- klines // 只要拿到資料就丟進 channel
+			}
+			// 沒資料不用丟，避免 nil append
+		})
+	}
+
+	// 等全部任務完成再關閉 channel
+	go func() {
+		wg.Wait()
+		close(ch)
+	}()
+
+	// 收集所有 K 線
+	var allKlines []*Kline
+	for klines := range ch {
+		allKlines = append(allKlines, klines...)
+	}
+
+	return allKlines, nil
+}

internal/repository/data_source_binance_test.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"sync"
 	"testing"
+	"time"
 
 	miniredis "github.com/alicebob/miniredis/v2"
 	"github.com/zeromicro/go-zero/core/stores/redis"
@@ -81,3 +82,19 @@ func TestGetSymbolsFromSource_TableDriven(t *testing.T) {
 		})
 	}
 }
+
+func TestSymbol(t *testing.T) {
+	mr, rdb := setupMiniRedis()
+	defer mr.Close()
+
+	repo := MustBinanceRepository(BinanceRepositoryParam{
+		Conf: &config.Binance{
+			Key:      "",
+			Secret:   "",
+			TestMode: true,
+		},
+		Redis: rdb,
+	})
+
+	repo.FetchHistoryKline(context.Background(), "BTCUSDT", "1m", time.Date(2025, 8, 4, 0, 0, 0, 0, time.UTC).UnixMilli(), 0)
+}