go client basic auth

go client basic auth

## from https://answers.callfire.com/hc/en-us/articles/205407787-Authentication

package main

import (
    "fmt"
    "io/ioutil"
    "log"
    "net/http"
)

func main() {
    client := &http.Client{}

    req, err := http.NewRequest("GET", "https://www.callfire.com/api/1.1/rest/contact", nil)
    req.SetBasicAuth("<username>", "<password>")
    resp, err := client.Do(req)
    if err != nil {
        fmt.Printf("Error : %s", err)
    }

    // Retrieve the body of the response
    body, err := ioutil.ReadAll(resp.Body)
    resp.Body.Close()

    if err != nil {
        log.Fatal(err)
    }

    // Dump the response
    fmt.Printf("%s", body)
}