IO Extensions

Cache

Crate features: [cache, io_extensions]
https://crates.io/crates/deno_cache
https://w3c.github.io/ServiceWorker/#cache-interface

Populates the global Cache, CacheStorage, and caches objects.
Not sandbox safe. Off by default

Options

RuntimeOptions::extension_options::cache

• The optional persistent caching backend used by the extension.
• Default: A non-persistent, in-memory cache

The cache option can also be set to None, which will effectively disable the cache functionality.

To configure the persistent cache, create an instance of the SQLite backend and pass it to the extension:

use rustyscript::{CacheBackend, ExtensionOptions, RuntimeOptions};

fn main() {
    // Will store the cache in a directory called "deno_cache"
    let cache = CacheBackend::new_sqlite("deno_cache").unwrap();
    let _options = RuntimeOptions {
        extension_options: ExtensionOptions {
            cache: Some(cache),
            ..Default::default()
        },
        ..Default::default()
    };
}

Usage Example

let cache = await caches.open('my_cache');

fetch('http://web.simmons.edu/').then((response) => {
    cache.put('http://web.simmons.edu/', response);
});

cache.match('http://web.simmons.edu/').then((response) => {
    console.log('Got response from cache!');
});