JavaScript post request like a form submit

manpreet Best Answer 3 years ago

_x000D_ Dynamically create s in a form and submit it /** * sends a request to the specified url from a form. this will change the window location. * @param {string} path the path to send the post request to * @param {object} params the paramiters to add to the url * @param {string} [method=post] the method to use on the form */ function post(path, params, method='post') { // The rest of this code assumes you are not using a library. // It can be made less wordy if you use one. const form = document.createElement('form'); form.method = method; form.action = path; for (const key in params) { if (params.hasOwnProperty(key)) { const hiddenField = document.createElement('input'); hiddenField.type = 'hidden'; hiddenField.name = key; hiddenField.value = params[key]; form.appendChild(hiddenField); } } document.body.appendChild(form); form.submit(); } Example: post('/contact/', {name: 'Johnny Bravo'}); EDIT: Since this has gotten upvoted so much, I'm guessing people will be copy-pasting this a lot. So I added the hasOwnProperty check to fix any inadvertent bugs.