Series: How Did I Build MineEco System? Part 3 - Overcoming Obstacles

Building MineEco was not a straightforward journey. Like any complex system, it faced multiple challenges, from technical hurdles to operational bottlenecks. In this part of the series, I will share the key obstacles encountered and how I tackled them to keep the system scalable, secure, and efficient.
- Challenge
Designing a robust microservices architecture while ensuring seamless communication between services was a significant challenge. Managing service dependencies, avoiding circular dependencies, and ensuring data consistency across services were crucial concerns. For example, after an order is booked, processing next steps to avoid bottlenecks is a challenge
- Solution
Event-Driven Architecture: I implemented an event-driven approach using Azure Service Bus and Kafka to enable asynchronous communication between microservices.
Saga Pattern for Transactions: To maintain data consistency across services, I introduced the Saga Pattern, allowing distributed transactions to be handled in a resilient manner.
API Gateway & Load Balancing: Using Azure API Management and NGINX, I ensured that requests were routed efficiently while implementing rate limiting and authentication layers.
- Challenge
Handling increased traffic and ensuring smooth performance as the user base grew. While shopping seasons, such as Black Friday or Christmas, there would be significant requests to the system. But on normal days, the number of requests drops dramatically, leading to underutilized resources and increased operational costs.
- Solution
Caching Strategy: Implemented Redis for API caching to reduce database load and improve response times.
Database Optimization: Used SQL indexing, partitioning, and read replicas to distribute database load effectively.
Auto-Scaling & Load Balancing: Deployed services on Azure Kubernetes Service (AKS) with auto-scaling policies to dynamically allocate resources based on demand.
Cost Optimization: Implemented serverless computing for low-traffic services, reducing costs during off-peak hours by automatically scaling down unused resources.
- Challenge
Securing sensitive user and transaction data, preventing unauthorized access, and ensuring compliance with regulations.
- Solution
JWT Authentication & OAuth 2.0: Enforced authentication using JWT tokens and OAuth 2.0 for secure API access.
Role-Based Access Control (RBAC): Defined granular permissions to restrict access to different system components.
Data Encryption & Compliance: Stored sensitive data with AES-256 encryption and ensured compliance with GDPR and PCI DSS for payment security.
- Challenge
Seamless integration with payment gateways (Stripe, PayPal), external APIs, and logistics services without disrupting the core system.
- Solution
API Abstraction Layer: Introduced a middleware abstraction to handle third-party integrations, reducing direct dependencies.
Webhooks & Message Queues: Used event-driven webhooks and message queues to process third-party interactions asynchronously, improving system stability.
Fallback Mechanism: Implemented circuit breakers and retry mechanisms to handle failures gracefully and prevent cascading service failures.
- Challenge
Detecting and resolving system issues proactively before they impact users.
- Solution
Centralized Logging & Monitoring: Implemented Azure Application Insights, Grafana, and Prometheus to monitor system health in real-time.
Alerting System: Configured alerts for critical events such as API failures, latency spikes, and database slowdowns.
Automated Incident Response: Integrated Azure Functions to trigger automated workflows for issue mitigation.
Root Cause Analysis (RCA): Established post-mortem analysis practices to prevent recurring incidents and improve system resilience.
Conclusion
Despite the numerous challenges, overcoming these obstacles helped MineEco evolve into a resilient, scalable, and high-performance system. By leveraging the right technologies and architectural patterns, I ensured that MineEco could sustain growth while maintaining reliability and security.
In the next part of the series, I will delve into Implementing and Testing the System, sharing lessons learned from scaling MineEco efficiently while keeping expenditures under control. Stay tuned!