48 lines
1.0 KiB
Go
48 lines
1.0 KiB
Go
package database
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import (
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"context"
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"fmt"
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"log"
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"time"
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"github.com/jackc/pgx/v5/pgxpool"
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"5803025050/internal/config"
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)
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// ConnectDB establishes a connection pool to the PostgreSQL database
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// using the configuration values from Config.
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func ConnectDB(cfg *config.Config) (*pgxpool.Pool, error) {
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dsn := cfg.DatabaseURL()
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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poolConfig, err := pgxpool.ParseConfig(dsn)
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if err != nil {
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return nil, fmt.Errorf("unable to parse database config: %w", err)
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}
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pool, err := pgxpool.NewWithConfig(ctx, poolConfig)
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if err != nil {
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return nil, fmt.Errorf("unable to create connection pool: %w", err)
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}
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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("unable to ping database: %w", err)
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}
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log.Println("database connection established")
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return pool, nil
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}
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// CloseDB gracefully closes the database connection pool.
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func CloseDB(pool *pgxpool.Pool) {
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if pool != nil {
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pool.Close()
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log.Println("database connection closed")
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}
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}
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