CODEWITHSUNDEEP
javascripthtmlposthttp-posthttprequest
Reza Owliaei
Reza Owliaei

Reputation: 3363

How to set a Header field on POST a form?

How can I set a custom field in POST header on submit a form?

Upvotes: 127

Views: 274562

Answers (8)

sm7
sm7

Reputation: 61

If you are using JQuery with Form plugin, you can use:

$('#myForm').ajaxSubmit({
    headers: {
        "foo": "bar"
    }
});

Source: https://stackoverflow.com/a/31955515/9469069

Upvotes: -3

Himadri Pant
Himadri Pant

Reputation: 2291

To add into every ajax request, I have answered it here: https://stackoverflow.com/a/58964440/1909708

To add into particular ajax requests, this' how I implemented:

var token_value = $("meta[name='_csrf']").attr("content");
var token_header = $("meta[name='_csrf_header']").attr("content");
$.ajax("some-endpoint.do", {
 method: "POST",
 beforeSend: function(xhr) {
  xhr.setRequestHeader(token_header, token_value);
 },
 data: {form_field: $("#form_field").val()},
 success: doSomethingFunction,
 dataType: "json"
});

You must add the meta elements in the JSP, e.g.

<html>
<head>        
    <!-- default header name is X-CSRF-TOKEN -->
    <meta name="_csrf_header" content="${_csrf.headerName}"/>
    <meta name="_csrf" content="${_csrf.token}"/>

To add to a form submission (synchronous) request, I have answered it here: https://stackoverflow.com/a/58965526/1909708

Upvotes: -3

Ramesh Pareek
Ramesh Pareek

Reputation: 1669

In fact a better way to do it to save a cookie on the client side. Then the cookie is automatically sent with every page header for that particular domain.

In node-js, you can set up and use cookies with cookie-parser.

an example:

res.cookie('token', "xyz....", { httpOnly: true });

Now you can access this : 

app.get('/',function(req, res){
 var token = req.cookies.token
});

Note that httpOnly:true ensures that the cookie is usually not accessible manually or through javascript and only browser can access it. If you want to send some headers or security tokens with a form post, and not through ajax, in most situation this can be considered a secure way. Although make sure that the data is sent over secure protocol /ssl if you are storing some sensitive user related info which is usually the case.

Upvotes: 2

Majid
Majid

Reputation: 2905

From FormData documention:

XMLHttpRequest Level 2 adds support for the new FormData interface. FormData objects provide a way to easily construct a set of key/value pairs representing form fields and their values, which can then be easily sent using the XMLHttpRequest send() method.

With an XMLHttpRequest you can set the custom headers and then do the POST.

Upvotes: 6

Steve
Steve

Reputation: 923

Here is what I did in pub/jade

extends layout
block content
    script(src="/jquery/dist/jquery.js")
    script.
      function doThePost() {
        var jqXHR = $.ajax({ 
            type:'post'
            , url:<blabla>
            , headers: { 
                'x-custom1': 'blabla'
                , 'x-custom2': 'blabla'
                , 'content-type': 'application/json'
            }
            , data: {
                'id': 123456, blabla
            }
        })
        .done(function(data, status, req) { console.log("done", data, status, req); })
        .fail(function(req, status, err) { console.log("fail", req, status, err); });
      }
    h1= title
    button(onclick='doThePost()') Click

Upvotes: 1

Fabio Buda
Fabio Buda

Reputation: 769

You could use $.ajax to avoid the natural behaviour of <form method="POST">. You could, for example, add an event to the submission button and treat the POST request as AJAX.

Upvotes: 0

Chris Hynes
Chris Hynes

Reputation: 10239

Set a cookie value on the page, and then read it back server side.

You won't be able to set a specific header, but the value will be accessible in the headers section and not the content body.

Upvotes: 15

Aliostad
Aliostad

Reputation: 81660

It cannot be done - AFAIK.

However you may use for example jquery (although you can do it with plain javascript) to serialize the form and send (using AJAX) while adding your custom header.

Look at the jquery serialize which changes an HTML FORM into form-url-encoded values ready for POST.

UPDATE

My suggestion is to include either

  • a hidden form element
  • a query string parameter

Upvotes: 82

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