SpringBoot WebFlux Functional RestAPIs » grokonez

SpringBoot WebFlux Functional RestAPIs » grokonez

Reactive programming is about non-blocking applications. And Spring Framework 5 includes a new spring-webflux module, supports Reactive Streams for communicating backpressure across async components and libraries. So in the tutorial, JavaSampleApproach will guide you through the steps for creating a SpringBoot WebFlux Functional restful APIs. Related posts: – SpringBoot WebFlux Annotation-based RestAPIs – Reactor – … Continue reading "SpringBoot WebFlux Functional RestAPIs"

https://grokonez.com/spring-framework/spring-webflux/springboot-webflux-functional-restapis

SpringBoot WebFlux Functional RestAPIs

Reactive programming is about non-blocking applications. And Spring Framework 5 includes a new spring-webflux module, supports Reactive Streams for communicating backpressure across async components and libraries. So in the tutorial, JavaSampleApproach will guide you through the steps for creating a SpringBoot WebFlux Functional restful APIs.

Related posts:

I. Technologies

– Java: 1.8 – Maven: 3.3.9 – Spring Tool Suite: Version 3.9.0.RELEASE – Spring Boot: 2.0.0.M4 – Spring Boot Starter Webflux

II. Spring WebFlux Functional

Spring Framework 5.0 supports WebFlux with fully asynchronous and non-blocking and does NOT require the Servlet API(Unlike Spring MVC).

Spring WebFlux supports 2 distinct programming models: – Annotation-based with @Controller – Functional with Java 8 lambda style

In the tutorial, we will introduce WebFlux with Functional. For starting with WebFlux, SpringBoot supports a collection dependency: spring-boot-starter-webflux.

With Spring WebFlux Functional, we use {HandlerFunctions, RouterFunctions} to develop.

1. HandlerFunctions

HandlerFunctions will handle incoming HTTP requests through ServerRequest, and return a Mono

@Component
public class CustomerHandler {

    ...

    public Mono getAll(ServerRequest request) {
        ...
        return ServerResponse.ok().contentType(MediaType.APPLICATION_JSON).body(customers, Customer.class);
    }

    ...

    public Mono putCustomer(ServerRequest request) {
        ...
        return responseMono
                .flatMap(cust -> ServerResponse.ok().contentType(MediaType.APPLICATION_JSON).body(fromObject(cust)));
    }

    ...

    public Mono deleteCustomer(ServerRequest request) {
        ...
        return responseMono
                .flatMap(strMono -> ServerResponse.ok().contentType(MediaType.TEXT_PLAIN).body(fromObject(strMono)));
    }
}

2. RouterFunction

RouterFunction handle all incoming requests. It takes a ServerRequest, and returns a Mono. If a request matches a particular route, a handler function is returned; otherwise it returns an empty Mono.

More at:

https://grokonez.com/spring-framework/spring-webflux/springboot-webflux-functional-restapis

SpringBoot WebFlux Functional RestAPIs

springboot webflux restapi functional

Bootstrap 5 Complete Course with Examples

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Building a simple Applications with Vue 3

Deno Crash Course: Explore Deno and Create a full REST API with Deno

How to Build a Real-time Chat App with Deno and WebSockets

Convert HTML to Markdown Online

HTML entity encoder decoder Online

SpringBoot WebFlux Annotation-based RestAPIs » grokonez

Reactive programming is about non-blocking applications. And Spring Framework 5 includes a new spring-webflux module, supports Reactive Streams for communicating backpressure across async components and libraries. So in the tutorial, JavaSampleApproach will guide you through the steps for creating a SpringBoot WebFlux Annotation-based restful APIs. Related posts: – SpringBoot WebFlux Functional RestAPIs – Reactor – … Continue reading "SpringBoot WebFlux Annotation-based RestAPIs"

The Difference Between Regular Functions and Arrow Functions in JavaScript

<p>Other then the syntactical differences. The main difference is the way the this keyword behaves? In an arrow function, the this keyword remains the same throughout the life-cycle of the function and is always bound to the value of this in the...

[Angular SpringBoot] Angular Table Pagination Filtering Sorting with SpringBoot RestAPIs

When we have a large dataset and we want to present it to the user in smaller chunks, pagination and sorting is often helpful solution. So in the tutorial, I introduce how to use Angular to build a table solution for pagination, filtering and sorting the fetching data with SpringBoot RestAPIs examples. Related posts: Angular … Continue reading "[Angular SpringBoot] Angular Table Pagination Filtering Sorting with SpringBoot RestAPIs + Bootstrap Example – Angular 10-9-8-6 Tutorial"

SpringBoot RestAPIs CRUD Application with MySQL Examples

In the tutorial, I will introduce how to create a Fullstack SpringBoot RestAPIs CRUD Application to MySQL database using Spring WEB MVC framework and Spring JPA for building Backend and using Bootstrap, JQuery Ajax for building frontend client Related posts: Spring Boot Security JWT Authentication Example – MySQL/PostgreSQL + Spring JPA + RestAPIs Angular CRUD … Continue reading "SpringBoot RestAPIs CRUD Application with MySQL Examples – FullStack: Frontend (Bootstrap + Ajax JavaScript) to Backend (SpringBoot + MySQL)"

SpringBoot RestAPIs @GetMapping, @PostMapping, @DeleteMapping, @PutMapping,

“How to create SpringBoot RestAPIs?” is one of the most common questions in Java development world. So in the tutorial, loizenai.com will guide step by step how to do it with clearly explaination and pratice with running sourcecode by using a new annotation features of SpringBoot framework: @GetMapping, @PostMapping, @DeleteMapping, @PutMapping, @PatchMapping New Annotations of … Continue reading "SpringBoot RestAPIs @GetMapping, @PostMapping, @DeleteMapping, @PutMapping, @PatchMapping"