feat: use pgxpool in backend

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/jackc/pgx/v5 v5.7.6
 	github.com/oapi-codegen/runtime v1.1.2
 	github.com/pelletier/go-toml/v2 v2.2.4
-	golang.org/x/crypto v0.40.0
+	github.com/sirupsen/logrus v1.9.3
 )
 
 require (
@@ -26,6 +26,7 @@ require (
 	github.com/google/uuid v1.5.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
@@ -34,11 +35,11 @@ require (
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/quic-go/qpack v0.5.1 // indirect
 	github.com/quic-go/quic-go v0.54.0 // indirect
-	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.3.0 // indirect
 	go.uber.org/mock v0.5.0 // indirect
 	golang.org/x/arch v0.20.0 // indirect
+	golang.org/x/crypto v0.40.0 // indirect
 	golang.org/x/mod v0.25.0 // indirect
 	golang.org/x/net v0.42.0 // indirect
 	golang.org/x/sync v0.16.0 // indirect

modules/backend/main.go

@@ -13,7 +13,7 @@ import (
 
 	"github.com/gin-contrib/cors"
 	"github.com/gin-gonic/gin"
-	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgxpool"
 	"github.com/pelletier/go-toml/v2"
 )
 
@@ -31,17 +31,17 @@ func main() {
 	// 	log.Fatalf("Failed to init config: %v\n", err)
 	// }
 
-	conn, err := pgx.Connect(context.Background(), os.Getenv("DATABASE_URL"))
+	pool, err := pgxpool.New(context.Background(), os.Getenv("DATABASE_URL"))
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Unable to connect to database: %v\n", err)
 		os.Exit(1)
 	}
 
-	defer conn.Close(context.Background())
+	defer pool.Close()
 
 	r := gin.Default()
 
-	queries := sqlc.New(conn)
+	queries := sqlc.New(pool)
 
 	server := handlers.NewServer(queries)
 	// r.LoadHTMLGlob("templates/*")