44 lines
883 B
Go
44 lines
883 B
Go
package db
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import (
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"context"
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"fmt"
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"server/internal/config"
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"github.com/jackc/pgx/v5/pgxpool"
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"go.uber.org/fx"
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)
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func NewDB(lc fx.Lifecycle, cfg *config.Config) (*pgxpool.Pool, error) {
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ctx := context.Background()
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dbConfig := cfg.Database
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dsn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=%s",
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dbConfig.Host, dbConfig.Port, dbConfig.User, dbConfig.Password, dbConfig.DBName, dbConfig.SSLMode)
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// 创建连接池
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pool, err := pgxpool.New(ctx, dsn)
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if err != nil {
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return nil, err
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}
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// 注册fx生命周期钩子
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lc.Append(fx.Hook{
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OnStart: func(ctx context.Context) error {
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return nil
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},
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OnStop: func(ctx context.Context) error {
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pool.Close()
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return nil
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},
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})
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// 测试连接
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if err = pool.Ping(ctx); err != nil {
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pool.Close()
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return nil, fmt.Errorf("failed to ping database: %w", err)
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}
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return pool, nil
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}
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