atualizar limites de conexão

Author: Bulletdev

internal/database/db.go

@@ -3,6 +3,7 @@ package database
 import (
 	"context"
 	"log"
+	"time"
 
 	"github.com/jackc/pgx/v5/pgxpool"
 )
@@ -16,6 +17,12 @@ func NewConnection(databaseURL string) (*pgxpool.Pool, error) {
 		return nil, err
 	}
 
+	// Apply connection pool limits to reduce memory usage (important for low-RAM environments like Render Free)
+	config.MaxConns = 4                       // Hard cap on max simultaneous DB connections
+	config.MinConns = 1                       // Keep 1 connection alive to reduce cold starts
+	config.MaxConnLifetime = 30 * time.Minute // Recycle connections after 30min
+	config.MaxConnIdleTime = 5 * time.Minute  // Close idle connections after 5min
+
 	// Create a new connection pool
 	pool, err := pgxpool.NewWithConfig(context.Background(), config)
 	if err != nil {
@@ -27,7 +34,7 @@ func NewConnection(databaseURL string) (*pgxpool.Pool, error) {
 	err = pool.Ping(context.Background())
 	if err != nil {
 		log.Printf("Unable to ping database: %v\n", err)
-		pool.Close() // Close the pool if ping fails
+		pool.Close()
 		return nil, err
 	}