fathom/db/db.go

package db

import (
	"database/sql"
	"fmt"
	_ "github.com/go-sql-driver/mysql"
	"log"
	"os"
)

var Conn *sql.DB

func SetupDatabaseConnection() *sql.DB {
	var err error
	var dataSourceName = fmt.Sprintf("%s:%s@%s/%s", os.Getenv("ANA_DATABASE_USER"), os.Getenv("ANA_DATABASE_PASSWORD"), os.Getenv("ANA_DATABASE_HOST"), os.Getenv("ANA_DATABASE_NAME"))

	Conn, err = sql.Open("mysql", dataSourceName)
	if err != nil {
		log.Fatal(err.Error()) // Just for example purpose. You should use proper error handling instead of panic
	}

	// Open doesn't open a connection. Validate DSN data:
	err = Conn.Ping()
	if err != nil {
		log.Fatal(err.Error()) // proper error handling instead of panic in your app
	}

	return Conn
}