Forms

This example will show how to simulate a contact form and parse the message into a struct.

  1. // forms.go
  2. package main
  4. import (
  5.     "html/template"
  6.     "net/http"
  7. )
  9. type ContactDetails struct {
  10.     Email   string
  11.     Subject string
  12.     Message string
  13. }
  15. func main() {
  16.     tmpl := template.Must(template.ParseFiles("forms.html"))
  18.     http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
  19.         if r.Method != http.MethodPost {
  20.             tmpl.Execute(w, nil)
  21.             return
  22.         }
  24.         details := ContactDetails{
  25.             Email:   r.FormValue("email"),
  26.             Subject: r.FormValue("subject"),
  27.             Message: r.FormValue("message"),
  28.         }
  30.         // do something with details
  31.         _ = details
  33.         tmpl.Execute(w, struct{ Success bool }{true})
  34.     })
  36.     http.ListenAndServe(":8080", nil)
  37. }
  1. <!-- forms.html -->
  2. {{if .Success}}
  3.     <h1>Thanks for your message!</h1>
  4. {{else}}
  5.     <h1>Contact</h1>
  6.     <form method="POST">
  7.         <label>Email:</label><br />
  8.         <input type="text" name="email"><br />
  9.         <label>Subject:</label><br />
  10.         <input type="text" name="subject"><br />
  11.         <label>Message:</label><br />
  12.         <textarea name="message"></textarea><br />
  13.         <input type="submit">
  14.     </form>
  15. {{end}}
  1. $ go run forms.go