Pre-populate Zendesk new ticket fields via query params

populate-zendesk-fields.js

jQuery(function($) {
  if ( !$('#new_request') ) return

  var query = window.location.search.substring(1);
  var vars = query.split("&");
  var match, fieldID;
  for (var i=0; i<vars.length; i++) {
    var pair = vars[i].split("=");
    match = pair[0].match(/^request_fields\[([a-z_\d]+)\]$/)
    if (match) {
      fieldID = match[1];
      $('#request_' + fieldID).val( decodeURIComponent(pair[1]) );
    }
  }
});

remote-app-submission.js

// build your data
var field_data = {
  "anonymous_requester_email": "",    // email
  "subject": "",                      // subject
  "description": "that shit cray",    // description
  "custom_fields_23823917": "",       // your name
  "custom_fields_23823947": "bit_module_wire__orange___cloudbit"  // which module [cloudBit]
}

// parse it out for our url format
var q = []
for ( var k in field_data ) {
  if (field_data.hasOwnProperty(k)) {
    q.push('request_fields[' + k + ']=' + encodeURIComponent(field_data[k]) )
  }
}

// wrap it up
var zd_url = 'https://support.littlebits.cc/hc/en-us/requests/new?ticket_form_id=28986&'
var redirect_url = zd_url + q.join('&')