Develop code based on REST API Webservices

I have the REST API webservices specification for placing booking from a service provider(Test server and dummy credentials will be provided). I require some coding to be done for these tasks: 1) Login task 2) Products (show product listing) 3) Place booking / Post Order Data I have a linux VPS. You can choose any programming language that works for this server. However, I will be happy if you can provide the code as a drupal module. After some additional investigation, I find there are some modules that can import data from external JSON sources , map required fields and integrate into drupal system. To be considered for this bid, I request freelancers who have prior experience in this - I mean integrate JSON data into Drupal Fields so that certain elements in the UI like values of Select/Dropdowns Fields, etc. are populated. If you want me to consider any other platform other than Drupal, you need to convince me by showing a demo of something similar to what I explained above.