35 lines
656 B
Go
35 lines
656 B
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"log"
|
|
"os"
|
|
|
|
"github.com/jackc/pgx/v5/pgxpool"
|
|
"github.com/joho/godotenv"
|
|
)
|
|
|
|
func main() {
|
|
err := godotenv.Load()
|
|
if err != nil {
|
|
log.Fatal("Error al cargar el archivo .env")
|
|
}
|
|
|
|
dbpool, err := pgxpool.New(context.Background(), os.Getenv("PG_FROM_DB_URL"))
|
|
if err != nil {
|
|
fmt.Fprintf(os.Stderr, "Unable to create connection pool: %v\n", err)
|
|
os.Exit(1)
|
|
}
|
|
defer dbpool.Close()
|
|
|
|
var greeting string
|
|
err = dbpool.QueryRow(context.Background(), "select 'Hello, world!'").Scan(&greeting)
|
|
if err != nil {
|
|
fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
|
|
os.Exit(1)
|
|
}
|
|
|
|
fmt.Println(greeting)
|
|
}
|