Wasm di Production — WebAssembly

WebAssembly di Production WebAssembly bukan teknologi eksperimental — perusahaan besar sudah memakainya di production untuk performa dan efisiensi yang tidak bi

WebAssembly di Production

WebAssembly bukan teknologi eksperimental — perusahaan besar sudah memakainya di production untuk performa dan efisiensi yang tidak bisa dicapai JavaScript alone.

Real-World Case Studies

Figma — Design Tool

Google Earth — 3D Globe

AutoCAD — CAD Software

Shopify — Checkout Extensions

Production Checklist

// 1. Streaming Compilation
// Browser bisa compile Wasm SAMBIL download
// Pastikan server kirim correct MIME type:
Content-Type: application/wasm

// 2. Caching
// .wasm files bisa di-cache agresif (content immutable)
Cache-Control: public, max-age=31536000, immutable

// 3. Compression
// Brotli compression sangat efektif untuk .wasm
Content-Encoding: br
// Brotli bisa mengurangi size 30-50%

// 4. Code Splitting
// Jangan load semua Wasm upfront
const heavyModule = await import("./heavy-wasm-wrapper.js");
// Load hanya saat dibutuhkan

Error Handling

// Wasm bisa trap (crash) — handle gracefully
try {
  const result = wasmModule.compute(input);
  return result;
} catch (error) {
  if (error instanceof WebAssembly.RuntimeError) {
    console.error("Wasm trap:", error.message);
    // Kemungkinan: out of bounds, stack overflow,
    // unreachable, integer overflow
  }
  // Fallback ke JavaScript implementation
  return jsCompute(input);
}

// Feature detection
if (typeof WebAssembly === "object") {
  // Load Wasm module
} else {
  // Fallback ke JS polyfill
}

Monitoring & Observability

// Track Wasm performance di production
const metrics = {
  loadTime: 0,
  compileTime: 0,
  executionTime: 0,
};

const t0 = performance.now();
const response = await fetch("module.wasm");
metrics.loadTime = performance.now() - t0;

const t1 = performance.now();
const { instance } = await WebAssembly.instantiateStreaming(response);
metrics.compileTime = performance.now() - t1;

const t2 = performance.now();
instance.exports.process(data);
metrics.executionTime = performance.now() - t2;

// Kirim ke analytics
analytics.track("wasm_performance", metrics);

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