Udemy

Mastering Java Reactive Programming [ From Scratch ]

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  • 25,072 Students
  • Updated 2/2026
4.8
(3,385 Ratings)
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Course Information

Registration period
Year-round Recruitment
Course Level
Study Mode
Duration
17 Hour(s) 5 Minute(s)
Language
English
Taught by
Vinoth Selvaraj
Rating
4.8
(3,385 Ratings)
4 views

Course Overview

Mastering Java Reactive Programming [ From Scratch ]

Unlock the Power of Reactive Programming, Asynchronous and Non-Blocking Programming using Reactor

Unleash the Power of Reactive Programming & enable stream based communication in your Microservices architecture.

It is a Hands-On Course. You should be willing to write code.

This course equips you with the skills to build modern, scalable, and responsive applications. Master the art of handling asynchronous data streams with Reactive Programming, a game-changing development paradigm.

Key Benefits:

  • Build Efficient Systems: Escape the limitations of blocking operations and write code that's non-blocking and resource-saving.

  • Enhance Scalability: Create applications that can handle increasing loads with ease.

  • Embrace Asynchronous Operations: React swiftly to data changes and deliver a smooth user experience.

  • Craft Resilient Code: Develop robust systems that can handle errors gracefully and recover quickly.

  • Unlock Advanced Techniques: Learn powerful operators for manipulating data streams, managing backpressure, and more.

Course Highlights:

  • Reactive Programming Fundamentals: Grasp core concepts, publishers (Mono & Flux), and understand hot vs. cold streams.

  • Asynchronous Mastery: Perform operations without blocking threads, freeing up resources for other tasks.

  • Operator Exploration: Discover the power of various operators for transforming, filtering, and combining data streams.

  • Backpressure Control: Learn strategies to prevent overwhelming your system with data.

  • Threading and Schedulers: Optimize thread usage and ensure efficient execution.

  • Sinks: Unicast, Multicast, Replay: Understand different mechanisms for delivering data to subscribers.

  • Advanced Techniques: Explore concatenation, merging, zipping, combination operators, and more.

  • Batching with Buffer, Window & GroupBy: Process data in chunks for efficient handling.

  • Error Handling & Retry Mechanisms: Build robust systems that can recover from failures.

  • Testing with Step Verifier: Write unit tests specifically for reactive code.

  • Declarative Programming: Express your business logic clearly and concisely.

  • Context Management: Manage application context within reactive streams.

  • Reactive Hooks & Callbacks: Leverage additional control mechanisms for reactive operations.

  • Parallel Stream Processing: Unlock the potential of multicore processors for faster execution.

By the end of this course, you'll be able to:

Confidently write reactive applications that are:

  • Highly Scalable: Handle increasing workloads efficiently.

  • Resilient: Recover from errors gracefully.

  • Responsive: Deliver a smooth user experience.

This course provides a solid foundation for anyone seeking to excel in the world of reactive programming.

Course Content

  • 15 section(s)
  • 204 lecture(s)
  • Section 1 Introduction
  • Section 2 Mono
  • Section 3 Flux
  • Section 4 Flux - Emitting Items Programmatically
  • Section 5 Operators
  • Section 6 Hot & Cold Publishers
  • Section 7 [OPTIONAL] - Threading & Schedulers
  • Section 8 [OPTIONAL] - Back Pressure / Overflow Strategy
  • Section 9 Combining Publishers
  • Section 10 [OPTIONAL] - Batching / Windowing / Grouping
  • Section 11 Repeat & Retry
  • Section 12 Sinks
  • Section 13 [OPTIONAL] - Context
  • Section 14 Unit Testing With Step Verifier
  • Section 15 What's Next?

What You’ll Learn

  • Master Reactive Programming: Learn how to build modern, scalable, and responsive applications using reactive techniques., Escape Blocking I/O: Write non-blocking code for efficient resource utilization., Asynchronous Programming: Learn how to perform operations without blocking threads., Operator Mastery: Discover the power of various operators for transforming, filtering, and combining data streams., Backpressure Control: Understand how to manage backpressure to prevent overwhelming your system., Threading and Schedulers: Optimize thread usage for efficient execution., Sinks and Publishers: Explore different mechanisms for delivering and receiving data., Advanced Techniques: Learn about concatenation, merging, zipping, and other advanced operators., Error Handling and Retry Mechanisms: Build robust systems that can recover from failures., Testing with Step Verifier: Write unit tests specifically for reactive code., Declarative Programming: Express your business logic in a concise and declarative manner., Context Management: Manage application context within reactive streams., Reactive Hooks and Callbacks: Leverage additional control mechanisms for reactive operations., Parallel Stream Processing: Utilize multicore processors for faster execution., Gain a Competitive Edge: Acquire in-demand skills that are highly sought after in the modern software development landscape., Deliver Responsive User Experiences: React swiftly to data changes and provide a smooth user experience., Enhance Scalability: Create applications that can handle increasing loads with ease.


Reviews

  • M
    Miraj Shah
    5.0

    Thoroughly enjoyed this course. Vinoth explained the concepts really well, with loads of examples and assignments to help test your knowledge. Would highly recommend!

  • R
    Raul Sánchez Ratero
    5.0

    It has been a really useful course for me. The instructor does a really good job, keeps the content up to date and is very didactic. Thank you very much for that.

  • R
    Rishat Khussainov
    5.0

    Reading articles and documentation felt too hard for a novice like me. This course started with basic overview then slowly added more concepts, which suited me perfectly. I only wish there were optional textual self paced exercises to get some practical experience.

  • A
    Ashish Kempwad
    5.0

    Vinoth is an incredible teacher and technologist. Thoroughly enjoyed the course. One of the best on Udemy. After going through this course, I have already bought 6 more courses of him.

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