67 lines
1.7 KiB
Go
67 lines
1.7 KiB
Go
package postgres
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import (
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"context"
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"fmt"
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"time"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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// PoolConfig holds the configuration for the database connection pool.
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type PoolConfig struct {
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MaxConns int
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MinConns int
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MaxConnLifetime time.Duration
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MaxConnIdleTime time.Duration
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HealthCheckPeriod time.Duration
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}
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// DefaultPoolConfig returns a reasonable default pool configuration.
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func DefaultPoolConfig() *PoolConfig {
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return &PoolConfig{
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MaxConns: 10,
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MinConns: 2,
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MaxConnLifetime: time.Hour,
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MaxConnIdleTime: 30 * time.Minute,
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HealthCheckPeriod: time.Minute,
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}
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}
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// NewPool creates a new database connection pool. If poolConfig is nil,
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// DefaultPoolConfig() is used.
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func NewPool(ctx context.Context, config *Config, poolConfig *PoolConfig) (*pgxpool.Pool, error) {
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if poolConfig == nil {
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poolConfig = DefaultPoolConfig()
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}
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pgxConfig, err := pgxpool.ParseConfig(config.DSN())
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if err != nil {
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return nil, fmt.Errorf("failed to parse pool config: %w", err)
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}
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pgxConfig.MaxConns = int32(poolConfig.MaxConns)
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pgxConfig.MinConns = int32(poolConfig.MinConns)
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pgxConfig.MaxConnLifetime = poolConfig.MaxConnLifetime
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pgxConfig.MaxConnIdleTime = poolConfig.MaxConnIdleTime
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pgxConfig.HealthCheckPeriod = poolConfig.HealthCheckPeriod
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pool, err := pgxpool.NewWithConfig(ctx, pgxConfig)
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if err != nil {
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return nil, fmt.Errorf("failed 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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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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// ClosePool closes the database connection pool if it is non-nil.
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func ClosePool(pool *pgxpool.Pool) {
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if pool != nil {
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pool.Close()
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}
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}
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