Payment Gateway System Design | Payment Processing | System Design

Payment Gateway is a software used by ecommerce website to help buyer make payment online. It is usually integrated with a payment ingestion and payment processing unit. In this video I have talked about how card payment works, how 3D secure card payment works, how will you design your own system like Razorpay, Paypal etc. High level software design of payment gateway has been discussed here along with relevant APIs which each service will use.
Payment is a very big domain hence capturing each details in one video is tough and same goes for system design interview or coding interview. Do discuss with your interviewer the topic where focus is required from interviewer's point of view and drill deep into it.

0:00 Introduction
0:45 Content
02:15 Terms to Note
06:03 How Card Payment works?
10:08 How 3D secure Card Payment works?
14:21 Requirements for System Design of Payment Gateway
15:43 Design Considerations
17:46 High Level Design
25:30 Relevant APIs
27:42 Payment Processor
32:55 Susbcribe

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