What is a message queue? How message queues work and when to use themA message queue is a software component that lets services exchange data asynchronously. Learn how queues, topics, publishers and consumers work, and when they are worth the complexity.How to handle errors in Node.js: try/catch, error-first callbacks, promises, and event emittersNode.js errors come in several asynchronous styles, and each has its own correct way to be caught. This guide explains try/catch for synchronous code, error-first callbacks, promise rejection handling, and the 'error' event for streams and event emitters.What is Event-Driven Architecture? How EDA works with events, CQRS, and event sourcingEvent-driven architecture (EDA) is a software design pattern where components communicate by producing and detecting events. Learn how EDA works, its topologies, event sourcing, CQRS, and when to use it.What is the JavaScript event loop? How the call stack, task queue, and microtask queue workThe JavaScript event loop is the runtime model that lets single-threaded JavaScript run asynchronous code. Learn how the call stack, the task queue, and the microtask queue cooperate, and why Promise callbacks fire before setTimeout.Microservice Architecture Explained — Decomposition, Communication, Data, and Trade-offsMicroservice architecture splits an application into small independent services. Learn how decomposition, inter-service communication, data management, and the microservice premium work. 