Using WebSockets to Convert BTC to USD and Reais (BRL)
If you need real-time BTC conversion (USD and BRL), polling an API every few seconds is usually not enough. A better approach is streaming quotes with…
Latest News
⚑ Report a ProblemTech news from the best sources
All topics
AI
Gear
News
Tech
agents
ai
api
architecture
automation
beginners
career
database
devchallenge
devops
discuss
javascript
llm
machinelearning
mcp
opensource
performance
productivity
programming
python
react
security
showdev
tutorial
typescript
webdev
A RabbitMQ Upgrade Exposed the Reliability Assumptions Hidden in Our Messaging System
The RabbitMQ upgrade looked like a straightforward infrastructure task: move from RabbitMQ 3.X to 4.X, provision the new broker, review the client set…
Real-Time Inventory Management with Kafka: How Retailers Are Eliminating Stockouts
TL;DR Retailers process thousands of inventory transactions every second across physical stores, eCommerce platforms, warehouses, suppliers, and fulfi…
Rabbit Relay v1.0.0: Type-safe RabbitMQ for Node.js without hiding RabbitMQ
I just released Rabbit Relay 1.0.0 , the first stable release of a TypeScript-first RabbitMQ framework for Node.js. Rabbit Relay is built on top of am…
Move to Event-Driven Architecture
Like many teams we didn’t choose event-driven architecture in the first place. At first, the application was relatively simple. A user performed an ac…
Event-Driven Architecture: Uncle Explains Like You're Five 👦👨🦳
A conversation between Uncle (a backend architect) and Nephew (a curious developer) about events, publishers, subscribers, Redis Pub/Sub, RabbitMQ, an…
Building Resilient Multi-Agent Systems
Introduction AI agent systems are evolving rapidly. Today, we already see multi-agent architectures capable of solving complex problems by breaking th…
I built a Go microservices framework in 2017. Here's what 8 years of production taught it.
In 2017 I was maintaining a Node.js ecommerce server when a new project landed on my desk — an IoT platform for vehicle tracking devices. Thousands of…
Event-Driven Architecture: The Dual Write Problem and How to Solve It
You have a well-designed order service. It writes to the database and publishes an event to Kafka. Clean, decoupled, event-driven. Then Kafka has a br…
We Trusted Auto-Ack. The Queue Agreed. Our Costs Didn't.
Most async bugs announce themselves. This one didn't. No failed jobs. No customer complaints. No error logs. Just infrastructure costs climbing steadi…
Why Distributed Transactions Fail and How the Outbox Pattern Helps
While covering the Outbox Pattern in my earlier article on CQRS , I realized there was much more depth to it than I initially planned to discuss — and…
An Ash-Inspired DDD Framework for Python: Derive Everything from the Domain Model
I've been building PingerAgents — a multitenant AI agent orchestration platform. Along the way I ended up writing something that felt worth writing up…
RabbitMQ vs Kafka: Choosing the Right Messaging System for Real Backend Architectures (part-2)
This is my part-2 of the topic, in case you would like to go beyond basics of RabbitMQ and Kafka have look at my part-1. RabbitMQ vs Kafka: Choosing t…
How Apache Kafka Powers Real-Time Data Pipelines
Most standard data pipelines run on a schedule. You use tools like Airflow and dbt to extract and transform large batches of API data once a day. Howe…
Event Sourcing beyong the theory
Event Sourcing has always been an interesting subject to me. I used to work at a manufacturing company, specifically on a product that handled invento…
Contract-First Event-Driven Architecture on AWS
When event-driven systems grow past a handful of services, the biggest failures usually are not infrastructure failures. They are contract failures . …