Eclipse Vert.x Sandbox

A multi-module project demonstrating various Eclipse Vert.x 5 features, including RESTful APIs, reactive data access, GraphQL, and framework integrations.

Tech Stack

Technology	Version
Vert.x	5.1.3
Java	25
Kotlin	2.4.0
Jackson	2.22.0
JUnit	6.0.2
Maven Shade Plugin	3.6.1
Maven Surefire	3.5.4
Exec Maven	3.6.3

Prerequisites

• Java 25 (set via maven.compiler.release=25)
• Apache Maven (3.9+)
• Docker (for running PostgreSQL locally)

Quick Start

1. Start a PostgreSQL instance from the project root:

docker compose up postgres

1. Build and run a specific module:

cd spring
mvn clean compile exec:java

Or package and run the fat JAR:

mvn clean package
java -jar target/xxx-fat.jar

Subprojects

Getting Start

• Building RESTful APIs with Eclipse Vert.x — REST API with Vert.x Web, PgPool, and SQL client
• Building RESTful APIs with Eclipse Vert.x and RxJava 3 — RxJava 3 bindings for reactive data access
• Building RESTful APIs with Eclipse Vert.x and Kotlin — Kotlin language support
• Building RESTful APIs with Eclipse Vert.x and Kotlin Coroutines — Kotlin coroutines for async programming

Web Layer

• Consuming RESTful APIs with Vert.x HttpClient — HTTP client usage
• Exception Handling and Validation — Validation handlers
• Building GraphQL APIs with Eclipse Vert.x — GraphQL over HTTP
• Consuming GraphQL APIs with Vert.x WebClient — GraphQL client

Integration

• Integrating Vert.x Application with Spring Framework — Spring DI integration
• Integrating Vert.x Application with Weld/CDI — CDI integration
• Building Vert.x Application with SmallRye Mutiny, Spring and Hibernate — Mutiny + Hibernate Reactive