在Gin中获取POST HTML表单的所有内容

I've an HTML form:

<body>
<div>
  <form method="POST" action="/add"name="submitForm">
      <label>Message</label><input type="text" name="message" value="" />
      <input type="checkbox" name="complete" value=""> Complete<br>
      <input type="submit" value="submit" />
  </form>
</div>
</body>

Now I want to access both values (message and complete) at the same time when a POST occurs.

How can I do this in Go (gin gonic)?

I can do it in two times by using postForm but is there a way to collect them both?:

func AddTodoHandler(c *gin.Context) {
    fmt.Println(c.PostForm("message"))
    fmt.Println(c.PostForm("complete"))

I tried fmt.Println(c.PostForm("submitForm")) but that did not work.