📄️ Server and Serverless
Our applications ultimately need to run somewhere. That "somewhere" typically comes down to two options: traditional servers (where you play the house owner) or serverless environments (where you're a cloud nomad). Both approaches keep your code running in the clouds, but one gives you keys to the server room while the other hands you an Uber-like bill. Let's break down these options.
📄️ Communication Between Systems
When systems need to talk, they have two fundamental ways to communicate: synchronously (waiting for immediate replies) or asynchronously (fire-and-forget). Understanding this split will help you debug issues, choose technologies, and explain architectural decisions to your team.
📄️ REST and RESTful
What's REST (and RESTful)?
📄️ Interfaces and Implementations
- An Interface is the "What." It's a contract. A promise. It tells you what a thing can do, but it has zero clue how it's done. Think of a power outlet on your wall. You know you can plug a lamp into it and get electricity (the "what"). You don't need to know about the power plant, the transformers, or the squirrels running on a wheel that generate the power (the "how"). The outlet is the interface.