Techy Chalkboard in Bits and Pieces

There’s always someone who knows better than Google!

Software Architectures Explained (Quick & Practical Guide)

If you’re building applications in .NET or any backend stack, understanding architecture is critical. Here’s a concise guide to the most important software architectures. 1. Layered Architecture (N-Tier) Structure: Controller → Service → Repository → Database Pros: Simple, easy to implement Cons: Tight coupling, harder to scale Best for: Small to medium applications 2. Clean…

gRPC in Simple Terms (Modern RPC)

gRPC is a modern way for applications to talk to each other in distributed systems. It is the latest evolution of RPC (Remote Procedure Call) designed for speed, efficiency, and scalability. Simply put: gRPC allows one service to call another service’s function just like calling a local method — but faster and smarter for cloud…

Cold vs Hot Observables in Rx.NET

Reactive Extensions (Rx.NET) is used to handle asynchronous data streams in .NET applications. One of the most important concepts to understand is the difference between Cold Observables and Hot Observables. What is an Observable? An Observable is a data stream that we can subscribe to and receive values over time. IObservable<int> stream = Observable.Range(1, 3);…

Fixing “Value cannot be null. (Parameter ‘provider’)” Error While Running Azure Function Apps Locally

While developing Azure Function Apps locally, you may encounter the runtime error: Value cannot be null. (Parameter ‘provider’) This issue can be frustrating because it appears during startup and often looks like a coding problem. However, in most cases, it is caused by local tooling or runtime installation issues. 🚨 Problem When running the Function…

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