Build me a sample Shopify embedded app for POS in PHP

ONLY Shopify Embedded php app developer apply for this job. I want the App for private single store use - and it is to read data from an API that looks like this {"orders":[{"id":"23318","type":"A","customerId":"72250","name":"John Smith"} So I just need the PHP files so I can install the App in Shopify POS so it can pull through a list of orders like this: A23318 John Smith (72250)