Observability (Metrics, Logs, and Traces)

A simple guide for software engineers

Jan 26 • Stephane Moreau

16

1

2

Common Architectures: Monolithic, Distributed, and Serverless

Understanding when each approach makes sense for your system

Jan 5 • Stephane Moreau

16

2

2

December 2025

Communication Protocols

HTTP, WebSockets, SSE, gRPC, REST, and GraphQL

Dec 29, 2025 • Stephane Moreau

14

1

1

REST vs GraphQL

Explained as simply as possible… but not simpler.

Dec 22, 2025 • Stephane Moreau

22

1

HTTP Status Codes You Must Know

Explained as simply as possible… but not simpler.

Dec 15, 2025 • Stephane Moreau

13

1

1

Types of API Testing

Explained as simply as possible… but not simpler.

Dec 8, 2025 • Stephane Moreau

22

2

2

The Only 5 Diagramming Tools You Need for System Design

The tools I actually use (and recommend to my mentees)

Dec 1, 2025 • Stephane Moreau

11

4

1

November 2025

Read-Through vs Write-Through Cache

Explained as simply as possible… but not simpler.

Nov 24, 2025 • Stephane Moreau

10

2

What happens when you type a url in your browser?

Explained as simply as possible… but not simpler.

Nov 17, 2025 • Stephane Moreau

21

2

2

How to store passwords in your database

Explained as simply as possible… but not simpler.

Nov 10, 2025 • Stephane Moreau

43

1

3

How to choose between SQL and NoSQL

Explained as simply as possible… but not simpler.

Nov 3, 2025 • Stephane Moreau

26

3

3

October 2025

Authentication (Session Vs JWT)

Explained as simply as possible… but not simpler.

Oct 27, 2025 • Stephane Moreau

24

1

2