func someHandler(w http.ResponseWrITer, r *http.Request) {
    // read form value
    value := r.FormValue("value")
    if r.Method == "POST" {
        // receive posted data
        body, err := ioutil.ReadAll(r.Body)
}
func main() {
    http.HandleFunc("/", someHandler)
    http.ListenAndServe(":8080", nil)
}