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RxJS Cookbook for Reactive Programming

You're reading from   RxJS Cookbook for Reactive Programming Discover 40+ real-world solutions for building async, event-driven web apps

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Product type Paperback
Published in Mar 2025
Publisher Packt
ISBN-13 9781788624053
Length 310 pages
Edition 1st Edition
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Author (1):
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Nikola Mitrovic Nikola Mitrovic
Author Profile Icon Nikola Mitrovic
Nikola Mitrovic
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Table of Contents (13) Chapters Close

Preface 1. Handling Errors and Side Effects in RxJS 2. Building User Interfaces with RxJS FREE CHAPTER 3. Understanding Reactive Animation Systems with RxJS 4. Testing RxJS Applications 5. Performance Optimizations with RxJS 6. Building Reactive State Management Systems with RxJS 7. Building Progressive Web Apps with RxJS 8. Building Offline-First Applications with RxJS 9. Going Real-Time with RxJS 10. Building Reactive NestJS Microservices with RxJS 11. Index
12. Other Books You May Enjoy

Debugging RxJS streams

There are a lot of great tools to debug RxJS streams that can really help us be productive, reproduce issues that may occur, and identify bugs easily. However, what if we don’t need to go through the setup of those tools and can rather have a simple network traffic log to observe what is going on in the network?

How to do it…

In this recipe, we will implement a simple network logger to observe the ongoing network traffic in the browser console. For that purpose, we will leverage Angular interceptors. Also, after each error, we will send the error information to our custom analytics endpoint, to increase our system Observability and Error Tracking.

Step 1 – Logging successful responses

In our network-logger.interceptor.ts, we will start intercepting ongoing network requests:

export const networkLogger: HttpInterceptorFn = (
                                req, next) => {
    const started = Date.now();
    const httpClient...
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