Overview

A Sample application built with Spring Boot 2 on Spring WebFlux stack, integrated with Spring Data Reactive Repositories with MongoDB and Azure CosmosDB to demonstrate an end to end non-blocking application. The codebase consists of two projects a REST API called ReactiveRecommendationService and a Web App which depends on the REST API called ReactiveReadingListWebApp.

Specifically, the following capabilities are demonstrated:

• Spring Boot 2 on WebFlux - Functional Routing, thymeleaf templates, Dependency Injection etc
• Netty HTTP server backend
• Calling REST APIs with WebClient
• Spring Data Reactive Repositories with MongoDB
• Spring Reactor
• Using Cosmos DB Mongo API from Spring Data Reactive Repositories with MongoDB

Getting started

First:

• Java 8
• maven
• Create a Cosmos DB Mongo collection named "ReadingList". use /reader as the "Shard Key"

Then:

• Update the following properties in application.properties for ReactiveReadingListWebApp
  • spring.data.mongodb.uri
• mvn spring-boot:run - from ReactiveRecommendationService the to start the REST API
• mvn spring-boot:run - from ReactiveReadingListWebApp to start the Web Application
• Access the WebApp at http://localhost:8080/readingList

NOTE: You can also run the application against Mongo DB