Go aka golang basic auth example of a GET request, including headers, using the Zendesk API and fetching the body.

basic_auth.go

package main

import "os"
import "fmt"
import "net/http"
import "io/ioutil"

func main() {
  url := "https://fake.zendesk.com/api/v2/satisfaction_ratings?score=good_with_comment"
  username := "fake@mail.com/token"
  password := 	os.Getenv("ZENV")
  req, err := http.NewRequest("GET", url, nil)
  req.Header.Set("Content-Type", "application/json")
  req.SetBasicAuth(username, password)
  client := &http.Client{}
  resp, err := client.Do(req)
  if err != nil {
    fmt.Printf("Error : %s", err)
  } else {
    body, readErr := ioutil.ReadAll(resp.Body)
    resp.Body.Close()
    if readErr != nil {
      fmt.Println("body error:", readErr)
    } else {
      fmt.Printf("%s", body)
    }
  }
}

Verified to work, using real credentials.