Integrating payment gateways into distributed microservices requires decoupled communication models and strict protocol separation. This technical guide explains how to implement PayPal in a microservices architecture using NestJS, gRPC, and Docker. Learn Proto contracts, run dual HTTP and gRPC transport layers in a single process, handle PayPal v2 checkout orders, and orchestrate containerized services. #NestJS #gRPC #Microservices #Docker #PayPal #Backend #Nodejs #APIs #SoftwareArchitecture
Manual or synchronous bulk payment processing is highly vulnerable to network timeouts, rate limits, and system crashes. This technical guide explains how to engineer a fault-tolerant, high-throughput payroll disbursement engine using Node.js, Express, and the Monnify payment gateway, decoupled by a Redis-backed BullMQ background task queue. #Nodejs #ExpressJS #Fintech #Monnify #BullMQ #Redis #BackendDevelopment #APIs #SoftwareArchitecture #SystemDesign #QueueManagement #PaymentGateway