Как подключить mysql к golang?

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package main

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

func init() {
   sql.Register("mysql", &mysql.MySQLDriver{})
}

func main() {
   dsn := fmt.Sprintf("%s:%s@tcp(%s)/%s", "username", "password", "host", "database_name")
   db, err := sql.Open("mysql", dsn)
   if err != nil {
      panic(err)
   }

   defer db.Close()

   var username string

   stmtOut, err := db.Prepare("SELECT username FROM user WHERE id = ?")
   if err != nil {
      panic(err.Error())
   }

   defer stmtOut.Close()

   // WHERE id = 1
   err = stmtOut.QueryRow(1).Scan(&username)
   if err != nil {
      panic(err.Error())
   }
   
   fmt.Printf("Username для user с id 1: %s", username)
}

1

go get -u github.com/go-sql-driver/mysql