photoplaces/backend/internal/repository/db.go

package repository

import (
	"context"
	"fmt"

	"github.com/jackc/pgx/v5/pgxpool"
)

func NewPool(ctx context.Context, databaseURL string) (*pgxpool.Pool, error) {
	cfg, err := pgxpool.ParseConfig(databaseURL)
	if err != nil {
		return nil, fmt.Errorf("parse config: %w", err)
	}

	cfg.MaxConns = 20
	cfg.MinConns = 2

	pool, err := pgxpool.NewWithConfig(ctx, cfg)
	if err != nil {
		return nil, fmt.Errorf("create pool: %w", err)
	}

	if err := pool.Ping(ctx); err != nil {
		return nil, fmt.Errorf("ping db: %w", err)
	}

	return pool, nil
}