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Huynh Thanh Phuc
Huynh Thanh Phuc

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Building a TypeScript Simple Channel (Like Golang)

Introduction:

Modern web development often involves managing asynchronous communication between different parts of an application. One powerful tool in this realm is the implementation of channels, providing a clean and efficient way for components or processes to exchange data. In this blog post, we'll explore the creation of a TypeScript Channel, a versatile and elegant solution for asynchronous communication.

Understanding the Need for Channels

In complex applications, different components or modules often need to communicate asynchronously. Traditional callback patterns or event listeners can become cumbersome and lead to callback hell. Channels provide a structured and organized way for these components to share data without tightly coupling them.

TypeScript Channel

The TypeScript Channel class presented here offers a simple yet powerful interface for asynchronous communication. Let's break down its key components and functionalities.

import { Channel } from "typescript-channel";
const chan = new Channel<string>();
...
chan.send(`hello from`); 
...
for await(const data of chan) { // use async iterator to receive data
        console.log(`Received: ${data}`);
 }
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Link NPM: https://www.npmjs.com/package/typescript-channel

Conclusion

The TypeScript Simple Channel class provides a powerful and flexible solution for managing asynchronous communication in your applications. By abstracting away the complexities of asynchronous patterns, this implementation fosters cleaner and more maintainable code. Whether you're building a frontend application with React or a backend service with Node.js, incorporating channels can greatly enhance the efficiency and readability of your codebase.

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Top comments (2)

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panic_err profile image
if err != nil { •

Does it support back pressure? I.e., if the for await loop asynchronously pauses itself, will the send() method pause too?

@harnyk/chan supports:

  • Back pressure
  • Buffering
  • select-ing
  • multiple consumers looping in parallel
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thanhphuchuynh profile image
Huynh Thanh Phuc •

No, it's a basic channel.

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