Slack invite by email

gistfile1.go

v := url.Values{}
v.Set("email", "email")
v.Set("channels", "channel")
v.Set("first_name", "firstname")
v.Set("token", "xox-")
v.Set("set_active", "true")
v.Set("_attempts", "1")

url := fmt.Sprintf("https://%s.slack.com/api/users.admin.invite?t=%d", "team", time.Now().Unix())

var err error
var resp http.Response
if resp, err = http.PostForm(url, v); err != nil {
  panic(err)
} 

var msg map[string]interface
if err = json.NewDecoder(resp.Body).Decode(&msg); err !=nil {
  panic(err)
}

fmt.Printf("%#v", msg)