Most Spring Boot authentication tutorials on YouTube will get you hacked. Hardcoded secrets. Passwords stored in plain text. Tokens that never expire. People copy that code, ship it to production, and then wonder why they end up in a breach report. This series is the opposite of that. Over ten episodes, we build the authentication backend that real apps — apps like Instagram — actually run on: Spring Boot 4, Spring Security 7, JWT with refresh-token rotation, Redis, and PostgreSQL . Production-grade, from the first commit. Episode 1 is the blueprint: the full architecture and the six decisions behind the stack, before we write a single line of code. What you’ll learn in Episode 1 This is a whiteboard episode — no coding yet, on purpose. Before you write auth code, you need to understand why each piece exists, otherwise you end up copy-pasting patterns you can’t defend in a code review. By the end you’ll understand: Why the most po...
Most Spring Boot authentication tutorials on YouTube will get you hacked. Hardcoded secrets. Passwords stored in plain text. Tokens that never expire. People copy that code, ship it to production, and then wonder why they end up in a breach report. This series is the opposite of that. Over ten episodes, we build the authentication backend that real apps — apps like Instagram — actually run on: Spring Boot 4, Spring Security 7, JWT with refresh-token rotation, Redis, and PostgreSQL . Production-grade, from the first commit. Episode 1 is the blueprint: the full architecture and the six decisions behind the stack, before we write a single line of code. What you’ll learn in Episode 1 This is a whiteboard episode — no coding yet, on purpose. Before you write auth code, you need to understand why each piece exists, otherwise you end up copy-pasting patterns you can’t defend in a code review. By the end you’ll understand: Why the most po...
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