How to launch a Process with JQuery

Include https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js in the footer of your webform

then execute this code:

function trigger_process(process_url, input_params) {
//process_url : STRING :  eg: https://live.runmyprocess.com/live/621199258/process/59619?P_mode=TEST
// input_params : JSON :  input params of the process eg: {"firstname":"John","lastname":"Smith"}
var xml_input_params = "<?xml version='1.0' encoding='UTF-8'?><feed xmlns='http://www.w3.org/2005/Atom'                             xml:base='https://live.runmyprocess.com/'><entry><category term='initial' /><content type='xml'>" + JSON.stringify(input_params) + "</content></entry></feed>";
 $.ajax({
 type : "POST",
 url : process_url,
 data : xml_input_params,
 cache : false,
 async : false,
 dataType : "json",
 beforeSend : function (xhr) {
 xhr.setRequestHeader('Content-Type', 'application/xml+atom');
 },
 success : parse_result,
 error : popup_ko
 });
}

function parse_result(data, textStatus, jqXHR) {
 alert(data.feed.id); // will popup the process instance id
}

function popup_ko(jqXHR, textStatus, errorThrown) {
 alert(textStatus + " : " + errorThrown);
}

trigger_process("https://live.runmyprocess.com/live/621199258/process/59619?P_mode=TEST", {
 "firstname" : "John",
 "lastname" : "Smith"
});

Notes : This will work if you trigger the script from a RunMyProcess webinterface (web interface and process are on the same domain).

If you'd like to use an authentication different from the one of the webinterface, do add:

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var rmp_login = your_rmp_login;
var rmp_password = your_rmp_password;
var auth='Basic '+Base64.encode (rmp_login+':'+rmp_password);

and add this in beforeSend parameter:

1	xhr.setRequestHeader('Authorization', auth);

NB : If you want to trigger the script from an html page not hosted on RunMyProcess, you'll have to configure settings in your browser: firefox -internet explorer

Docs

Developer Guide

How to launch a Process with JQuery