Spring Boot R2DBC Example

An example implementation of Spring Boot R2DBC REST API with PostgreSQL database.

Technology stack

• Java 21
• Maven
• PostgreSQL 17
• Docker

Java Dependencies

• Spring Boot 3.4.1
• Spring Data R2DBC
• R2DBC PostgreSQL Driver
• JUnit 5

Setup

1. Run postgresql locally (or start from docker-compose file)
2. Create two databases
   • postgres (main database)
   • test (dummy database for integration testing)
3. Run Spring Boot App

Building Docker Image

1. Run spring-boot build image plugin

mvn spring-boot:build-image -DskipTests

2. Run generated docker image

docker run -it -p8080:8080 --network="host" reactive-postgres:0.0.3-SNAPSHOT