Best Performance

For the highest throughput, use these defaults:

• Enable uWebSockets runtime: uWebSocketsEnabled: true
• Disable powered-by header: poweredByHeader: false
• For headers that should be sent on every request (for example CORS-related headers), use staticResponseHeaders instead of per-request hooks

Example (production-oriented):

import Oweb from 'owebjs';

const app = await new Oweb({
    uWebSocketsEnabled: true,
    poweredByHeader: false,
    autoPreflight: true,
    staticResponseHeaders: {
        // CORS (set your real origin in production)
        'access-control-allow-origin': 'https://yourdomain.com',
        'access-control-allow-methods': 'GET,POST,PUT,PATCH,DELETE,OPTIONS',
        'access-control-allow-headers': 'Content-Type, Authorization',
        vary: 'Origin',

        // Security headers
        'x-content-type-options': 'nosniff',
        'x-frame-options': 'DENY',
        'referrer-policy': 'strict-origin-when-cross-origin',
        'permissions-policy': 'geolocation=(), microphone=(), camera=()',
        'cross-origin-opener-policy': 'same-origin',
        'cross-origin-resource-policy': 'same-site',
    },
}).setup();

await app.loadRoutes({
    directory: 'routes',
    hmr: {
        enabled: false,
    },
});

await app.start({ port: 3000, host: '0.0.0.0' });