50 lines
1.0 KiB
Go
50 lines
1.0 KiB
Go
package db
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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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func Connect(dsn string) (*pgxpool.Pool, error) {
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cfg, err := pgxpool.ParseConfig(dsn)
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if err != nil {
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return nil, fmt.Errorf("parse dsn: %w", err)
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}
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cfg.MaxConns = 20
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cfg.MinConns = 2
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cfg.MaxConnIdleTime = 30 * time.Second
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cfg.MaxConnLifetime = 5 * time.Minute
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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p, err := pgxpool.NewWithConfig(ctx, cfg)
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if err != nil {
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return nil, fmt.Errorf("create pool: %w", err)
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}
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if err := p.Ping(ctx); err != nil {
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p.Close()
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return nil, fmt.Errorf("ping: %w", err)
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}
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return p, nil
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}
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func TestConnection(p *pgxpool.Pool) error {
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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var now time.Time
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err := p.QueryRow(ctx, "SELECT NOW()").Scan(&now)
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if err != nil {
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return fmt.Errorf("test query: %w", err)
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}
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fmt.Printf("[DB] Connection successful at %s\n", now.Format(time.RFC3339))
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return nil
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}
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