Davide's Code and Architecture Notes - CAP Theorem: it's not just «Pick two»

«Consistency, Availability, and Partition tolerance. Pick two». Is it really THAT simple? Let’s learn a bit more about the CAP theorem. Continue reading

Davide's Code and Architecture Notes - L4 vs L7 Load Balancer

If you need to handle lots of incoming requests, you should manage the incoming traffic by balancing the load across different servers. You should consider adding a Load Balancer: it’s a layer of abstraction that handles requests, availability, and security in a centralized place. Continue reading

Davide's Code and Architecture Notes - Testing Pyramid vs Testing Diamond (and how they affect Code Coverage)

Testing Pyramid and Testing Diamond are two ways of managing automated tests. We’re going to learn what they are and how they are built in relation to Unit Tests, Integration Tests, and End-to-end Tests. Continue reading

Davide's Code and Architecture Notes - Postel's law for API Robustness

A system should be robust: it should be able to resist change and, well, not generate regressions. Postel’s law helps define a mindset to create robust APIs. Continue reading

Davide's Code and Architecture Notes - Understanding Elasticity and Scalability with Pokémon Go and TikTok

Elasticity and Scalability: two important Architectural attributes, similar but quite different Continue reading

Davide's Code and Architecture Notes - Server-side caching strategies: how do they work?

Cache-aside, Read-through, Write-through, Write-behind: quite easy on the surface, but let’s go a little deeper! Continue reading