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spring-boot

A monorepo project for pulling together financial market data from public APIs, validating, cleaning, transforming, enriching, and presenting on a dashboard.

This repository is a personal learning workspace for following along with the book Cloud Native Spring in Action

A structured collection of practical Spring ecosystem examples covering security, data, reactive applications, modular architecture, cloud, AI, native images, and Kotlin.

Band Management Software

Java microservice template built with Spring Boot and Kafka, following Event-Driven Architecture (EDA). Provides a modular, scalable foundation for asynchronous distributed systems.

Mirror of github.com/alderichoarau/azure-quiz-backend — issues & PRs go there Spring Boot REST API for a Microsoft Azure certification revision app — course modules, official mock exams, and quiz sessions backed by PostgreSQL.

Kotlin/Java 21 trading wallet on Spring Boot (Web MVC, Security JWT, Data JPA/Hibernate, Bean Validation). Reserves funds under a row lock, rejects stale order edits, and publishes order events through a transactional outbox. Duplicate retries stay idempotent. PostgreSQL, Flyway, Redis, Kafka. Tests: JUnit 5, MockK, Google Truth, Testcontainers.

REST API to manage bookshelf's project data book

REST API backend for an e-commerce platform (Java 17, Spring Boot, MySQL) - products, categories, customers, orders.

API de votações cooperativas em Java 21, Spring Boot, Kafka e React

Arabic guide: from zero to Java Backend Engineer. Mirror of github.com/Youssef-Eltohamy/learn-java-spring

Java-based microservice template built with Spring Boot, following Hexagonal Architecture (Ports and Adapters). Provides a modular REST API suitable for creating scalable, maintainable, and testable services.

Java microservice template built with Spring Boot, following a clean layered architecture. It offers modular REST API with a clear separation of concerns, including unit and integration tests.

Java-based Spring Boot project demonstrating the usage of Spring beans, including configuration, scopes, lifecycle, initialization, and destruction, with practical examples.

A simple version checker, using semantic-release formats like 1.2.3, 2.3.4 or 6.6.6, as well as 3.4.5-alpha.2 or 4.5.6-beta.3, for a given GitHub user and repository, or GitLab instance apiV4 project URL.

Sistema de gerenciamento e simulação de empréstimos desenvolvido em Java aplicando conceitos de POO e padrões de projeto.

HAPI FHIR R4 terminology plugin for UCUM (IValidationSupport)