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workbox-streams
Advanced tools
A library that makes it easier to work with Streams in the browser.
The workbox-streams package is part of the Workbox suite of libraries, which are designed to make it easier to build high-quality Progressive Web Apps (PWAs) by providing tools that leverage service workers. Specifically, workbox-streams allows you to efficiently combine multiple strategies for fetching resources, enabling you to use streams to dynamically construct responses within a service worker. This can be particularly useful for scenarios where you want to cache certain parts of a request or dynamically generate content.
Concatenating responses from multiple sources
This feature allows you to concatenate responses from multiple sources, such as cache or network, into a single response. This is useful for constructing a full page response from separate parts.
import {strategy, concatenate, concatenateToResponse} from 'workbox-streams';
self.addEventListener('fetch', (event) => {
event.respondWith((async () => {
const parts = [
caches.match('/header.html'),
fetch('/main-content.html'),
caches.match('/footer.html')
];
return concatenateToResponse(parts);
})());
});
Using streams to dynamically generate content
This feature demonstrates how you can use streams to dynamically generate content by combining static and dynamic parts of a response. This is particularly useful for injecting dynamic content into a static template.
import {strategy, concatenate, concatenateToResponse} from 'workbox-streams';
self.addEventListener('fetch', (event) => {
event.respondWith((async () => {
const parts = [
new Response('<html><body>'),
fetch('/dynamic-content'),
new Response('</body></html>')
];
return concatenateToResponse(parts);
})());
});
sw-toolbox is a predecessor to Workbox, offering similar functionalities for service worker management and response strategies. However, Workbox, including workbox-streams, provides a more modern and comprehensive approach with additional features and improvements.
sw-precache is another tool that predates Workbox and focuses on precaching resources to make them available offline. While it offers some similar capabilities in terms of caching, workbox-streams specifically allows for more dynamic content generation and manipulation using streams, which is not a focus of sw-precache.
This module's documentation can be found at https://developers.google.com/web/tools/workbox/reference-docs/latest/module-workbox-streams
FAQs
A library that makes it easier to work with Streams in the browser.
The npm package workbox-streams receives a total of 1,834,607 weekly downloads. As such, workbox-streams popularity was classified as popular.
We found that workbox-streams demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 6 open source maintainers collaborating on the project.
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