# micro-wrapper-sqlpackage postgres Example for For postgres ```go import ( "fmt" "net/url" "time" "github.com/jackc/pgx/v4" "github.com/jackc/pgx/v4/stdlib" "github.com/jmoiron/sqlx" ) func Connect(cfg *PostgresConfig) (*sqlx.DB, error) { // format connection string dbstr := fmt.Sprintf( "postgres://%s:%s@%s/%s?sslmode=disable&statement_cache_mode=describe", cfg.Login, url.QueryEscape(cfg.Passw), cfg.Addr, cfg.DBName, ) // parse connection string dbConf, err := pgx.ParseConfig(dbstr) if err != nil { return nil, err } // needed for pgbouncer dbConf.RuntimeParams = map[string]string{ "standard_conforming_strings": "on", "application_name": cfg.AppName, } // may be needed for pbbouncer, needs to check //dbConf.PreferSimpleProtocol = true // register pgx conn connStr := stdlib.RegisterConnConfig(dbConf) db, err := sqlx.Connect("pgx", connStr) if err != nil { return nil, err } db.SetMaxOpenConns(int(cfg.ConnMax)) db.SetMaxIdleConns(int(cfg.ConnMax / 2)) db.SetConnMaxLifetime(time.Duration(cfg.ConnLifetime) * time.Second) db.SetConnMaxIdleTime(time.Duration(cfg.ConnMaxIdleTime) * time.Second) return db, nil } ```