I will be delivering this project within 15 working days(excluding Saturday and Sunday), days. For INR 33000, you get proper API documentation along with Unit test cases to keep the code future proof.
Relevant Skills and Experience
I have professional experience in consuming and programming REST apis. Till now I have written backend, in Nodejs, for 4 apps, a CMS, a CRM, a chat application, and a booking system. I follow TDD.
Proposed Milestones
₹33333 INR - Deliver API along with documentation and test cases.
Are you aware of the fact that not all of the merchants that you've mentioned provide their APIs?