Intro If you ever want to provide passwordless authentication to your users, then sending them a one-time sign-in link can be a good option. In this tutorial, we will use Spring Security and Spring Boot to build a simple application that can send magic sign-in links to users. We focus on making the links cryptographically secure so they cannot be guessed. 🍿 Get the code from GitHub …

Intro Sometimes, we need to inspect HTTP requests that hit our Spring application. This is usually easy to pull off but is complicated because a request body can no longer be handled by Spring once it is consumed (i.e., through logging). Here is a tutorial for making it possible, nevertheless. 🍿 Get the code from GitHub …

Intro When communicating with external APIs, we often use a RestTemplate, WebClient, or RestClient. All of these can be instrumented to log the requests they are sending so we can look into them and ensure they look how we expect them to. This tutorial shows you how to write a custom interceptor to inspect HTTP requests performed with the new RestClient. 🍿 Get the code from GitHub …

Intro Hey friends! This is a jam-packed tutorial about using Spring Boot 3, the new RestClient, and the OAuth 2 client, to connect to the YouTube API. We built an application that updates the title of a video to always* reflect the current number of views. The app is even doing this in the background, so we have to extract the access token, which otherwise would only be available during the lifetime of a request!…

Looking to get more control over task scheduling in Spring Boot? Dive into this tutorial to learn how to harness the TaskScheduler interface for programmatically setting up tasks.

A first look at the Spring AI project. Playing around with the AI abstraction, using ChatGPT to dynamically generate HTML.

Ever wrestled with testing external APIs? Dive into the world of WireMock with Spring Boot and see how it can make your life a breeze! This is just a starter guide, so stay tuned for deeper dives.

Managing secrets got you down? Check out how the AWS Parameter Store can be your new best friend. With AWS's IAM and Spring Cloud AWS, it's a game-changer!

Dive into the fun world of Multi-Factor Authentication using Spring Boot and Spring Security. Get the lowdown on time-based one-time passwords and amp up your security game!

Intro In this tutorial, I am using MetaMask to sign a nonce provided by the backend. The Spring Boot app validates the signature and authenticates a user via Spring Security. The front end is built using Vite + React. 🍿 Watch on YouTube or get the code from GitHub …