Spring Data Redis Example with Kotlin

Introduction

This example shows how to use Spring Data with Redis to do CRUD operations. Additionally, it demonstrates using Redis as a message broker.

The code is implemented using Kotlin, but it's easy for Java developers to understand as well.

For more in-depth details, have a look at the tutorials at links below:

• Getting started with Spring Data Redis with Kotlin
• Redis Pub/Sub with Spring Boot
• Server-Sent Events with Spring MVC SseEmitter
• Distributed SSE with Spring SseEmitter and Redis Pub/Sub
• How to handle MethodArgumentNotValidException in Spring Boot
• Spring Boot Redis integration test with Testcontainers in Kotlin
• Spring Boot Swagger documentation using OpenAPI
• Build Docker images in Spring Boot 3

Endpoints

To demonstrate CRUD operations, I use Movie, Actor model and created some endpoints to do basic CRUD operations as follows:

• Create Movie
• Update Movie
• Delete Movie
• List Movies
• Create Actor
• Update Actor
• Delete Actor
• List Actors
• Add an Actor to a Movie

How to run

The project needs Redis to run. There's a docker-compose file contains all necessary configuration to run Redis flawlessly.

To use it. Just run:

$ docker-compose -f docker-compose.yml up -d

After that the Redis should be accessible via port 6379 on localhost

Then you can run the application like below:

$ ./mvnw spring-boot:run -Dserver.port=8090

If you have a Redis running in another port or host, simply override below environment variables:

• SPRING_REDIS_HOST
• SPRING_REDIS_PORT

Or modify application.properties file.

To interact with the APIs, after running the project, just open http://localhost:8080/swagger-ui/index.html. You should see Swagger to interact with.