Spring WebFlux Masterclass: Reactive Microservices [New]
Learn Spring WebFlux & reactive programming to build fast, scalable microservices. Master high-performance, responsive applications.
Course Content
Spring WebFlux Masterclass: Reactive Microservices [New] is an all-levels Udemy course taught by Vinoth Selvaraj. It runs 13h 16m, is taught in English, and includes a certificate of completion. Learners rate it 4.7 out of 5 from 1,761 reviews, with 17,084 students enrolled. It is a paid course, last updated October 2025.
Master Spring WebFlux: Build Scalable & Resilient Web Applications
This comprehensive course provides a deep dive into Spring WebFlux, a powerful framework for constructing highly scalable, resilient, and responsive web applications leveraging reactive programming principles. Prerequisite: A foundational understanding of reactive programming is required. (Check out our dedicated Reactive Programming Course!)
What You'll Learn:
- Reactive vs. Traditional APIs: Understand the key differences between reactive APIs and traditional approaches, and why reactive programming is essential for modern web development.
- Reactive Data Access with R2DBC: Learn to connect to relational databases reactively using R2DBC drivers. Create reactive repositories with Spring Data R2DBC, implement CRUD operations with reactive data access patterns, and effectively integrate test your data access layer. We'll even demonstrate throughput/efficiency testing showcasing R2DBC's superior performance compared to Spring Data JPA.
- Building CRUD Operations: Master the creation of reactive controllers using Spring WebFlux annotations. Handle requests and responses using Flux and Mono, and implement robust integration testing for your reactive controllers.
- Error Handling Strategies: Discover effective techniques for managing exceptions within reactive pipelines using various operators. Learn to return meaningful error responses for a robust user experience.
- WebFilter/Interceptor Chaining: Explore how to implement WebFilters for pre-processing and post-processing requests and responses. Chain multiple WebFilters for complex logic, pass attributes between WebFilters and controllers, and share data effectively.
- Functional Programming with WebFlux: Leverage the power of lambda expressions to write concise and readable code. Build reactive controllers with functional endpoints and understand the benefits of functional programming within WebFlux.
- Building Reactive Clients: Learn to use WebClient to build reactive clients that consume external APIs using reactive streams. Efficiently handle asynchronous responses in a non-blocking manner.
- Streaming: Implement client-side streaming for uploading data as a stream using WebClient. Explore backpressure handling for optimized data transfer. Implement server-side streaming for downloading data as a stream. Utilize Server-Sent Events (SSE) with Spring WebFlux to enable real-time data updates from server to client.
- Optimizing for Performance: Implement Gzip compression, HTTP connection pooling, and leverage the HTTP/2 protocol for efficient bandwidth usage and application scalability.
- Integration Testing: Master integration testing with WebTestClient, integrating testing practices throughout the course.
Course Structure:
- Focus on practical code examples and demos tailored to each module.
- Hands-on labs to solidify your learning.
- Access to resources for further learning on Spring WebFlux and prerequisite reactive programming concepts (articles, tutorials, official documentation).
By the end of this course, you'll be equipped to:
Build modern, performant, and scalable web applications using Spring WebFlux. Unlock the potential of reactive programming for developing highly performant and scalable microservices. Gain the skills necessary to build resilient, efficient, and real-time applications using Spring WebFlux's non-blocking and event-driven architecture.
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