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Aggregated Payment System

An Aggregated Payment System (聚合支付系统) functions as an intermediary that integrates multiple payment channels—such as Alipay, WeChat Pay, and UnionPay—into a single unified interface.^[600-developer__principle__aggregate-payment-system.md]

Core Value

The primary purpose of an aggregated payment system is to simplify the payment landscape for merchants. Rather than integrating with each payment provider individually, merchants can connect to the aggregator once to accept various payment methods.^[600-developer__principle__aggregate-payment-system.md] This approach "opens the Ren and Du meridians" (打通任督二脉) of payment processing by streamlining the connection between merchants and financial institutions^[600-developer__principle__aggregate-payment-system.md].

Architecture and Implementation

The design of such systems often relies on establishing a robust domain model to handle the complexities of transaction routing and reconciliation^[600-developer__principle__aggregate-payment-system.md]. Modern implementations frequently apply microservice architecture to ensure scalability and modularity within the payment infrastructure^[600-developer__principle__aggregate-payment-system.md].

  • [[Payment Channels]]
  • [[Microservices]]
  • [[Domain Model]]

Sources

^[600-developer__principle__aggregate-payment-system.md]