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Scalable Ecommerce Microservice with WSO2 API Management

Node.jsExpressWSO2 API ManagerKubernetesDockerHelmOpenAPI 3.0SequelizeMySQL
RoleBackend Engineer
Year2025 (Nov)
ClientPersonal Project
Links
01

The Narrative

Enterprises require more than just functional APIs; they need secure, managed, and observable microservices that can be easily discovered and consumed by third-party developers.

Engineered a managed microservice ecosystem by offloading identity management to the WSO2 API Manager and automating deployment via Helm charts, reducing the attack surface and improving deployability.

Scalable Ecommerce Microservice with WSO2 API Management and Kubernetes orchestration
02

Key Features

01security

Enterprise API Management

Leveraged WSO2 APIM for OAuth2/JWT authentication, header-based identity injection (x-user-id), and policy enforcement.

02grid_view

Cloud-Native Orchestration

Packaged with Helm for reproducible deployments, utilizing Nginx Ingress and PVCs for persistent storage management.

03code

Software Engineering Excellence

Organized with a Controller-Service-Repository pattern and custom middleware for identity validation.

04api

OpenAPI Driven Design

Developed using a Design First approach with OpenAPI 3.0, enabling 100% automated resource creation in WSO2.

03

Engineering

ARCHITECTURE_MANIFEST.json

// SYSTEM_OVERVIEW

Containerized API ecosystem with WSO2 management and security layers.

Node.js / ExpressWSO2 API ManagerKubernetes / HelmDockerMySQLOpenAPI 3.0

01_MODULE: API MANAGEMENT (WSO2 APIM)

Integrated WSO2 Gateway to handle rate limiting and usage quotas, while exposing a self-service Developer Portal for API discovery and testing.

02_MODULE: KUBERNETES & DEVOPS STRATEGY

Implemented resource optimization with CPU/Memory limits and integrated health checks (Liveness/Readiness probes) to ensure cluster stability.