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Mastering Reactive JavaScript

You're reading from   Mastering Reactive JavaScript Building asynchronous and high performing web apps with RxJS

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Product type Paperback
Published in May 2017
Publisher Packt
ISBN-13 9781786463388
Length 310 pages
Edition 1st Edition
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Author (1):
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Erich de Souza Oliveira Erich de Souza Oliveira
Author Profile Icon Erich de Souza Oliveira
Erich de Souza Oliveira
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Table of Contents (12) Chapters Close

Preface 1. What Does Being Reactive Mean? FREE CHAPTER 2. Reacting for the First Time 3. A World Full of Changes - Reactive Extensions to the Rescue 4. Transforming Data - Map, Filter, and Reduce 5. The World Changes Too Fast - Operators to Deal with Backpressure 6. Too Many Sources - Combining Observables 7. Something is Wrong - Testing and Dealing with Errors 8. More about Operators 9. Composition 10. A Real-Time Server 11. A Real-Time Client

Building the application for the first time

To create our application, we must be able to serve at least two static files, the index.html, which is the HTML page, and the bundle.js file, which contains all the logic for the application written in JavaScript.

Serving the static file using express is extremely easy. To do so, let's change the index.js file inside the src folder (src/index.js) where we implemented our express server, and paste the following code:

app.use(express.static('static')); 

This code tells express to serve all files in the static folder as static files; now we will be able to see our page for the first time. To do this, run your application with:

    node src/index.js

Do not forget to start the Redis server as we are using it to communicate the messages. If you do not start your Redis server you will see an error like this:

So, do not forget to run the Redis server.

After...

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