51eshare's Tech Blog
This site is dedicated to sharing IT-related technologies.
Orchestrating Cross-Stack Transactions Between Express.js and Ktor with an Apache Pulsar-Based Saga Pattern Orchestrating Cross-Stack Transactions Between Express.js and Ktor with an Apache Pulsar-Based Saga Pattern
The mandate was to decompose a monolithic order management system. The user-facing API layer, responsible for creating o
2023-10-27 Distributed Systems
Microservices Pulsar Node.js Saga Pattern Kotlin Express.js Ktor
Implementing Full-Stack Observability with OpenTelemetry Across a Go-Fiber gRPC Service and a Pinia-Powered Vue Frontend Implementing Full-Stack Observability with OpenTelemetry Across a Go-Fiber gRPC Service and a Pinia-Powered Vue Frontend
The system went live, and for a week, all metrics looked stable. Then came the first intermittent bug report: “The dashb
2023-10-27 Observability
OpenTelemetry gRPC Pinia Shadcn UI Vue Go-Fiber
Building an Idempotent Google Cloud Pub/Sub Consumer with Go Kit to Manage CAP Theorem Trade-offs Building an Idempotent Google Cloud Pub/Sub Consumer with Go Kit to Manage CAP Theorem Trade-offs
The CAP theorem isn’t a choice of two out of three; for any practical distributed system, network partitions are a given
2023-10-27 Distributed Systems
Go Idempotency CAP Theorem Google Cloud Pub/Sub Go kit
Implementing an Observable Synthetic Monitoring Pipeline Using Knative Kotlin Services and On-Demand Matplotlib Visualization Implementing an Observable Synthetic Monitoring Pipeline Using Knative Kotlin Services and On-Demand Matplotlib Visualization
The core problem wasn’t a lack of monitoring; it was a lack of actionable insight. Our primary customer-facing API was s
2023-10-27 DevOps
Knative SkyWalking CircleCI Kotlin Matplotlib
Coordinating Flask Service Resilience with a Zookeeper-Backed Distributed Circuit Breaker and a Tailwind CSS Dashboard Coordinating Flask Service Resilience with a Zookeeper-Backed Distributed Circuit Breaker and a Tailwind CSS Dashboard
The immediate problem wasn’t subtle: cascading failures. A fleet of our Python Flask services relied on a third-party pa
2023-10-27 Architecture
Flask Tailwind CSS Zookeeper Distributed Systems Resilience Circuit Breaker
Building a CQRS-Driven Indexing Pipeline from a NestJS DDD Service to Solr via Consul Building a CQRS-Driven Indexing Pipeline from a NestJS DDD Service to Solr via Consul
The initial pain point was a classic monolithic scaling problem. Our core ProductCatalog service, responsible for both m
2023-10-27 Architecture
Solr Angular Consul Domain-Driven Design (DDD) NestJS CQRS Microservices
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