I created a page that will allow me to lookup clients

I created a page that will allow me to lookup clients from my CRM https://recruiterswebsites.com/client-lookup/ for testing use my email jeff@recruiterswebsites.com. You will be directed to a json file. I want to use this json file to fill in the clients ares on this page https://recruiterswebsites.com/new-sale/. So I need to convert data in the json file to this url string.https://recruiterswebsites.com/new-sale/?fname=Jeff&lname=Gipson&company=Recruiters%20Websites&website=http://recruiterswebsites.com&email=jeff@recruiterswebsites.com&phone=3147807995&address=1813%20Longview%20Dr.&address2=Line%202&city=Cape%20Girardeau&state=Mo&zip=63701&country=United%20States

I think I need a page in the middle that will send a get request, parse the data from the json file, build the URL and redirect