iyzico payment integration

In here there is an implementation of iyzico payment service on a dubbed e-commerce simulation. In this simulation there are members and they have their baskets. They add items into the baskets and then they can pay with iyzico.

Credit Card Masking and Validation:

There are several type of card masking.

4729150000000005 --> 472915******0005
4729-1500-0000-0005 --> 4729-15**-****-0005

Also there are some limitations for a valid credit card:

• Card number length must be 15 or 16.
• Not mask the first 6 and last 4 chars.
• Not mask if the number is not a valid one.

Simulated e-commerce purchase:

• API should CRUD items in e-commerce.
• API should CRUD members.
• API should CRUD a basket.
• API should CRUD items in the basket.
• API should provide the item name, stock and description.
• API for iyzico payment.
• Items should be sold if they are exist in e-commerce.

Testing:

• Unit test.
• Integration test with iyzico sandbox.

NOTE: This project contains only backend codes. No ui is created.