Hello, my name is Gerardo colina, I'm a developer/designer .
I develop web and desktop applications, i work with different languages and technologies such as php , java, ruby on rails, shopify, wordpress ,etc.
I can help you solve your problem with the json to xml. i have worked with all of that for several years.
i will do the job, and i'll keep in touch with you in order to get the result as you want.
i'll test the code and give the final product.