What Is the Default Form Http Method

What is the default form HTTP method?

It's GET.

Take a look W3C Superceded Recommendation 17.3 The FORM element.

Excerpt:

<!ATTLIST FORM
  %attrs;                              -- %coreattrs, %i18n, %events --
  action      %URI;          #REQUIRED -- server-side form handler --
  method      (GET|POST)     GET       -- HTTP method used to submit the form--
  enctype     %ContentType;  "application/x-www-form-urlencoded"
  accept      %ContentTypes; #IMPLIED  -- list of MIME types for file upload --
  name        CDATA          #IMPLIED  -- name of form for scripting --
  onsubmit    %Script;       #IMPLIED  -- the form was submitted --
  onreset     %Script;       #IMPLIED  -- the form was reset --
  accept-charset %Charsets;  #IMPLIED  -- list of supported charsets --
  >

Good read

Methods GET and POST in HTML forms - what's the difference?

Why is the default form post method NOT GET?

ASP.Net sets the method to POST for the form. I assume so that button presses result in POST requests which is more semantic than a GET and to prevent very long urls with the viewdata in the querystring.

Check your HTML source and you will see the method="post" attribute.

IE7 default form method is GET. How can I tell if it's user-entered or default?

IE's behaviour is correct!(*) According to DTD:

method      (GET|POST)     GET       -- HTTP method used to submit the form--

or, in the XHTML DTD:

method      (get|post)     "get"

that means if the method attribute is omitted, not only does the form submit as GET by default, but the DOM actually should contain an Attr node for method with the DTD defaulted value GET.

(*: well, sort of. IE is using the XHTML lower-case default in an HTML document where it should be the upper-case. Not that it really matters as the attribute is case-insensitive in HTML anyhow. And hey! It's IE getting the standard more-right than all the other browsers. It's a miracle!)

So how do you tell that the Attr node was put there because of DTD attribute defaulting and not because it was in the source? With the DOM Level 1 Core specified flag:

var form= document.getElementById('myform');
var attr= form.getAttributeNode('method');
var isomitted= attr===null || !attr.specified;

What HTTP request is made by browser when accessing endpoint URL?

When you type a URL in the address bar of your browser, it performs a GET request to retrive the content at the specified end-point.

If you want it to perform a POST request you can either create a form with method POST or use a JavaScript function (e.g. fetch) with the necessary arguments.

For more information:

• HTTP Verbs and their meaning
• Fetch API

What is the default browser form behavior for POST method?

@Volker pointed out what needed to change. The POST needed to be answered by the HTML I wanted displayed, so the real simple way to fix this is:

func MainPage(w http.ResponseWriter, r *http.Request) {
    fmt.Println("method:", r.Method) //get request method

    if r.Method == http.MethodPost {
        r.ParseForm()
        ...
    }

  if r.Method == "GET" || r.Method == "POST" {
        t, err := template.New("RTL Page").Parse(page)
        if err != nil {
            log.Fatal(err)
        }
        err = t.Execute(w, State)
        if err != nil {
            log.Fatal(err)
        }
    }

}

How is the default submit button on an HTML form determined?

If you submit the form via JavaScript (i.e., formElement.submit() or anything equivalent), then none of the submit buttons are considered successful and none of their values are included in the submitted data. (Note that if you submit the form by using submitElement.click() then the submit that you had a reference to is considered active; this doesn't really fall under the remit of your question since here the submit button is unambiguous but I thought I'd include it for people who read the first part and wonder how to make a submit button successful via JavaScript form submission. Of course, the form's onsubmit handlers will still fire this way whereas they wouldn't via form.submit() so that's another kettle of fish...)

If the form is submitted by hitting Enter while in a non-textarea field, then it's actually down to the user agent to decide what it wants here. The specifications don't say anything about submitting a form using the Enter key while in a text entry field (if you tab to a button and activate it using space or whatever, then there's no problem as that specific submit button is unambiguously used). All it says is that a form must be submitted when a submit button is activated. It's not even a requirement that hitting Enter in e.g. a text input will submit the form.

I believe that Internet Explorer chooses the submit button that appears first in the source; I have a feeling that Firefox and Opera choose the button with the lowest tabindex, falling back to the first defined if nothing else is defined. There's also some complications regarding whether the submits have a non-default value attribute IIRC.

The point to take away is that there is no defined standard for what happens here and it's entirely at the whim of the browser - so as far as possible in whatever you're doing, try to avoid relying on any particular behaviour. If you really must know, you can probably find out the behaviour of the various browser versions, but when I investigated this a while back there were some quite convoluted conditions (which of course are subject to change with new browser versions) and I'd advise you to avoid it if possible!

HTTP What is the purpose of GET method in forms

Generally speaking, an HTTP GET method is used to receive data from the server, while an HTTP POST is used to modify data or add data to a resource.

For example, think about a search form. There may be some fields on the form used to filter the results, such as SearchTerm, Start/EndDate, Category, Location, IsActive, etc, etc. You're requesting the results from the server, but not modifying any of the data. Those fields will be added to the GET request by the client so the server can filter and return the results you requested.

From the MDN article Sending form data:

Each time you want to reach a resource on the Web, the browser sends a
request to a URL. An HTTP request consists of two parts: a header that
contains a set of global metadata about the browser's capabilities,
and a body that can contain information necessary for the server to
process the specific request.

GET requests do not have a request body, so the parameters are added to the URL (this is defined in the HTTP spec, if you're interested).

The GET method is the method used by the browser to ask the server to
send back a given resource: "Hey server, I want to get this resource."
In this case, the browser sends an empty body. Because the body is
empty, if a form is sent using this method the data sent to the server
is appended to the URL.

An HTTP POST method uses the request body to add the parameters. Typically in a POST you will be adding a resource, or modifying an existing resource.

The POST method is a little different. It's the method the browser
uses to talk to the server when asking for a response that takes into
account the data provided in the body of the HTTP request: "Hey
server, take a look at this data and send me back an appropriate
result." If a form is sent using this method, the data is appended to
the body of the HTTP request.

There are plenty of resources online to learn about the HTTP protocol and HTTP verbs/methods. The MDN articles An overview of HTTP, Sending form data, and HTTP request methods should provide some good introductory reading material.

HTML form that causes a GET request

Maybe i'm missunderstanding what you are asking.


This can easly be achived using builtin GET method in FORM tag

---

<body>
    <form id="form" method="GET" action="scriptname.php">
        <input id="date-txt" type="text" name="date">
        <input id="search-btn" type="submit" value="Submit">
    </form>
</body>

While filling up above field ad clicking "Submit" form will be submitted and you can see in your url path/or/page/scriptname.php?date=INPUT_FIELD_VAL


for every input in #form with a name, if GET method is used, you'll see a ?name=value in the url

---

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