The latest articles on DEV Community by JohnMark Banisilon (@johnmark_banisilon_10cf02). https://dev.to/johnmark_banisilon_10cf02 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3704141%2F2e910726-d432-47d3-84b9-d01d79dcd419.png https://dev.to/johnmark_banisilon_10cf02 en JohnMark Banisilon Sun, 01 Nov 2026 08:13:05 +0000 https://dev.to/johnmark_banisilon_10cf02/i-built-a-client-side-cache-in-rust-and-compiled-it-to-webassembly-3b0i https://dev.to/johnmark_banisilon_10cf02/i-built-a-client-side-cache-in-rust-and-compiled-it-to-webassembly-3b0i <p>I built <strong>Blaze Cache</strong>, a high-performance client-side caching library written in Rust and compiled to WebAssembly.</p> <p>The goal was simple: make browser caching fast, predictable, and easy to integrate — without turning it into a heavy framework.</p> <h2> Why Wasm? </h2> <p>Most browser caches are pure JavaScript. That works, but I wanted:</p> <ul> <li>More predictable performance</li> <li>A cleaner core data structure</li> <li>A single engine that multiple adapters could share</li> </ul> <p>So the hot path (storage, TTL, tags, eviction) runs in Rust → Wasm. After initialization, <code>get</code> and <code>set</code> are fully synchronous.</p> <h2> What it supports </h2> <ul> <li>Synchronous reads and writes after init</li> <li>SIEVE eviction</li> <li>TTL + tag-based invalidation</li> <li>Optional IndexedDB persistence</li> <li>Typed event system</li> <li>Adapters for: <ul> <li>Axios</li> <li>fetch</li> <li>TanStack Query</li> <li>SWR</li> </ul> </li> </ul> <h2> Example </h2> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code> ts import { createCache } from '@blaze-cache/core' const cache = await createCache({ capacity: 1000 }) cache.set('user:42', { name: 'Ada' }, { ttlMs: 30_000, tags: ['user'] }) cache.get('user:42') cache.invalidateTags('user') </code></pre> </div> webassembly rust javascript typescript