go - Too many arguments to return

Question

I have this golang file:

package main

import (
    "log"
    "sync"

    "github.com/jmoiron/sqlx"
)

var db *sqlx.DB
var once sync.Once

// GetDBConnection whatever
func GetDBConnection() {

    once.Do(func() {
        db, err := sqlx.Connect("postgres", "user=tom dbname=jerry password=myPassword sslmode=disable")
        if err != nil {
            log.Fatalln(err)
        }
    })

    return db   // <<< error here

}

I get this error:

Too many arguments to return

I am just trying to create a singleton pattern and return the db connection. I am not sure if what is returned from sqlx.Connect is type sqlx.DB, that might be the problem. Is there a quick way to determine the return type of sqlx.Connect()?

Answer 1

Waitting for answers