Stop testing in a simulator! Learn how to use Testcontainers to spin up real, disposable Docker containers like PostgreSQL for your Spring Boot integration tests, ensuring maximum reliability and production…
Stop testing in a simulator! Learn how to use Testcontainers to spin up real, disposable Docker containers like PostgreSQL for your Spring Boot integration tests, ensuring maximum reliability and production…
Unlock fine-grained authorization in Spring Security with @PreAuthorize and SpEL. Learn to secure methods based on authenticated principal, method parameters, and returned objects, and explore custom permission evaluators.
Master advanced JPA relationships in Spring Boot. This tutorial covers implementing Many-to-Many connections with join tables and One-to-One associations, including shared primary key and foreign key strategies for robust data…
Learn how to model and implement One-to-Many and Many-to-One relationships in your Spring Boot applications using JPA, foreign keys, and annotations like @OneToMany, @ManyToOne, and @JoinColumn.
Delve into the core of Spring's Dependency Injection, understanding Inversion of Control, the different injection types, and how to manage component ambiguity for cleaner, more testable code.
Learn to migrate your Spring Boot application from an in-memory H2 database to a production-grade PostgreSQL database, including dependency setup, configuration, and local Docker deployment.
Learn how to integrate your Spring Boot application with external REST APIs using the modern `RestClient`. This practical guide covers making HTTP requests, handling responses, and managing errors for seamless…
Learn to write robust unit and integration tests for your Spring Boot REST APIs. This guide covers essential testing annotations and frameworks to ensure your code is rock-solid.
Learn how to enable HTTPS for your Spring Boot application to encrypt communication and secure sensitive data. This guide covers generating SSL certificates and configuring your app for secure traffic.
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