x/main.go

package main

import (
	"database/sql"
	"fmt"
	"log"
	"net/http"
	"os"

	_ "github.com/lib/pq"
)

func main() {
	port := os.Getenv("PORT")
	if port == "" {
		log.Fatalf("please set PORT")
	}

	pgConn := os.Getenv("PGCONN")
	if pgConn == "" {
		log.Fatalf("please set PGCONN")
	}

	_, err := sql.Open("postgres", pgConn)
	if err != nil {
		log.Fatal(err)
	}

	bind := fmt.Sprintf(":%s", port)
	log.Printf("listening on %s", bind)

	if err := http.ListenAndServe(bind, nil); err != nil {
		log.Fatalf("listen: %s", err)
	}
}