tutorial-reactive-spring

Our Reactive Spring Boot tutorial is finally complete! So our end-of-year gift to you is to wrap it all up into a single blog post, where you can easily find each of the tutorial steps, the code, and the full video of the original demo.  Happy coding! Part 1 - A Kotlin REST Service Part 2 - A REST Client for Reactive Streams Part 3 - A JavaFX Spring Boot Application Part 4 - A JavaFX Line Chart Part 5 - Auto-configuration for Shared Beans Part 6 - Displaying Reactive Data Part 7 – Subscribing Multiple Consumers Part 8 – Kotlin RSocket Server Part 9 – Java RSocket Client Pa

In this lesson we use Spring Profiles to enable an application to determine which of our two clients (server-sent events via WebClient, or RSocket) to use to connect to our Kotlin Spring Boot price service. This is the final part of our tutorial showing how to build a Reactive application using Spring Boot, Kotlin, Java and JavaFX.  The original inspiration was a 70 minute live demo. This blog post contains a video showing the process step-by-step and a textual walk-through (adapted from the transcript of the video) for those who prefer a written format. (more…)

In this lesson we add an RSocket client that can talk to the RSocket server we created in the last lesson. This is the ninth part of our tutorial showing how to build a Reactive application using Spring Boot, Kotlin, Java and JavaFX.  The original inspiration was a 70 minute live demo. This blog post contains a video showing the process step-by-step and a textual walk-through (adapted from the transcript of the video) for those who prefer a written format. (more…)

In this lesson we add a new back end service in Kotlin, this time emitting the prices via RSocket, a protocol for reactive streams. This is the eighth part of our tutorial showing how to build a Reactive application using Spring Boot, Kotlin, Java and JavaFX.  The original inspiration was a 70 minute live demo. This blog post contains a video showing the process step-by-step and a textual walk-through (adapted from the transcript of the video) for those who prefer a written format. (more…)

In this lesson we update our live-updating chart to show prices for more than one stock, which means subscribing more than one consumer to our reactive stream of prices. This is the seventh part of our tutorial showing how to build a Reactive application using Spring Boot, Kotlin, Java and JavaFX.  The original inspiration was a 70 minute live demo. This blog post contains a video showing the process step-by-step and a textual walk-through (adapted from the transcript of the video) for those who prefer a written format. (more…)

In this lesson we look at connecting our JavaFX chart to our Kotlin Spring Boot service to display real time prices. This is the sixth part of our tutorial showing how to build a Reactive application using Spring Boot, Kotlin, Java and JavaFX.  The original inspiration was a 70 minute live demo. This blog post contains a video showing the process step-by-step and a textual walk-through (adapted from the transcript of the video) for those who prefer a written format. (more…)

In this lesson we look at how to use Spring beans from one module in a different module, using auto-configuration. This is the fifth part of our tutorial showing how to build a Reactive application using Spring Boot, Kotlin, Java and JavaFX.  The original inspiration was a 70 minute live demo. This blog post contains a video showing the process step-by-step and a textual walk-through (adapted from the transcript of the video) for those who prefer a written format. (more…)

In this step we see how to create a JavaFX application that shows a line chart.  This application uses Spring for features like inversion of control. This is the fourth part in our tutorial showing how to build a Reactive application using Spring Boot, Kotlin, Java and JavaFX.  The original inspiration was a 70 minute live demo. This blog post contains a video showing the process step-by-step and a textual walk-through (adapted from the transcript of the video) for those who prefer a written format. (more…)

This is the third part in our tutorial showing how to build a Reactive application using Spring Boot, Kotlin, Java and JavaFX.  The original inspiration was a 70 minute live demo. This third step shows how to create a JavaFX application that is launched and managed via Spring Boot, so that we can use Spring features like inversion of control in our JavaFX application. This blog post contains a video showing the process step-by-step and a textual walk-through (adapted from the transcript of the video) for those who prefer a written format. (more…)

This second step shows how to create a Java client that will connect to an endpoint that emits a stream of server-sent events.  We'll be using a TDD-inspired process to create the client and test it. This is the second part in our tutorial showing how to build a Reactive application using Spring Boot, Kotlin, Java and JavaFX.  The original inspiration was a 70 minute live demo, which I have split into a series of shorter videos with an accompanying blog post, explaining each of the steps more slowly and in more detail. This blog post contains a video showing the process step-by-step and a te

This is the first step in a new tutorial showing how to create a Reactive Spring Boot application: Creating a Reactive service with Kotlin. This month (October 2019) I presented a live demo at SpringOne Platform, showing how to build a Spring Boot application that displays real-time prices, using Spring (obviously), Kotlin and JavaFX. The live demo was recorded and is available as a 70 minute video, but I thought it might be easier to digest as a series of shorter videos with an accompanying blog post, explaining each of the steps more slowly and in more detail, and that's what this tutorial