How to access variables in other package

Question

How can I move my global variable to other package in Go?

like

package main
import "myapp/controllers"

var something string

func main(){ 
  something = "some text" 
}

Answer 1

Like you want to have a globally accessible variable in your package controllers?:

package controllers

var Something string
var SomethingElse string = "whatever"

func init(){ 
    Something = "some text" 
}

And then you can do

package main
import (
    "myapp/controllers"
    "fmt"
)

func main(){ 
    fmt.Println(controllers.Something, controllers.SomethingElse) //some text
}

Answer 2

Just to add onto Daves answer, and another possible issue you were having. Variable names need to be Start With A Capital Letter To Be Visible

package main
import "myapp/controllers"

var Something string

func main(){ 
  Something = "some text" 
}

Additonally, you might have issues if you module name in go.mod file is weird. In this example it should look something like this

module myapp

go 1.16

require ()