Spring Boot WebFlux

A Spring Boot application that demonstrates reactive programming using Spring WebFlux and Project Reactor.

Overview

This project implements a reactive REST API using Spring WebFlux. It demonstrates non-blocking request processing, reactive streams, and asynchronous data handling using Reactor's Mono and Flux types.

Tech Stack

• Java 17
• Spring Boot 3.1.3
• Spring WebFlux
• Project Reactor
• Maven
• Lombok
• JUnit 5

Features

• Reactive REST API development
• Non-blocking request handling
• Asynchronous data processing
• Reactive streams with Flux
• Single-result publishers with Mono
• Functional endpoint routing
• Reactive request/response pipeline
• Reactive testing with Reactor Test

API Endpoints

Method	Endpoint	Description
GET	/	Returns a reactive response from the application
GET	/flux	Returns multiple values as a Flux stream
GET	/mono	Returns a single value as a Mono
GET	/pipeline	Demonstrates a reactive processing pipeline

Update the endpoints above if your implementation contains different routes.

Configuration

Default configuration:

server:
  port: 8080

spring:
  application:
    name: webflux

Reactive Programming

The application uses Spring WebFlux and Project Reactor to provide non-blocking and asynchronous request processing.

Core reactive types:

• Mono<T> — emits zero or one item
• Flux<T> — emits zero to many items

These types allow the application to process requests efficiently without blocking threads while waiting for operations to complete.

Project Structure

src/main/java/com/havefunwith/webflux
├── handler
├── router
├── service
├── model
├── repository
└── WebfluxApplication.java

Notes

This project was built as a learning project to practice Spring WebFlux concepts, including reactive programming, non-blocking APIs, functional routing, Mono, Flux, and reactive request processing.

Author

Marlon Braga