Designing a Notification System for an E-commerce App

Every e-commerce app sends notifications: your order shipped, your payment failed, a flash sale started. This post designs one end to end, with a focus on the architecture. The problem An online shopping app has about 10 million customers. When something happens (an order is placed or shipped, a payment fails, a price drops), the customer gets a... Weiterlesen: Designing a Notification System for an E-commerce App