prempushp/next.config.mjs at main · tiluckdave/prempushp · GitHub

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/** @type {import('next').NextConfig} */
const nextConfig = {
  experimental: {
    webpackBuildWorker: true,
    parallelServerCompiles: true,
    parallelServerBuildTraces: true,
  },

  // Performance optimizations
  poweredByHeader: false,
  compress: true,
  generateEtags: true,

  // Image optimization configuration
  images: {
    formats: ['image/webp', 'image/avif'],
    deviceSizes: [640, 750, 828, 1080, 1200, 1920, 2048, 3840],
    imageSizes: [16, 32, 48, 64, 96, 128, 256, 384],
    minimumCacheTTL: 31536000, // 1 year
    remotePatterns: [
      {
        protocol: "https",
        hostname: "res.cloudinary.com",
        port: "",
        pathname: "/**",
      },
      {
        protocol: "https",
        hostname: "firebasestorage.googleapis.com",
        port: "",
        pathname: "/**",
      },
      {
        protocol: "https",
        hostname: "images.unsplash.com",
        port: "",
        pathname: "/**",
      },
    ],
  },

  // Security headers for better SEO
  async headers() {
    return [
      {
        source: '/(.*)',
        headers: [
          {
            key: 'X-Frame-Options',
            value: 'DENY',
          },
          {
            key: 'X-Content-Type-Options',
            value: 'nosniff',
          },
          {
            key: 'Referrer-Policy',
            value: 'origin-when-cross-origin',
          },
          {
            key: 'X-DNS-Prefetch-Control',
            value: 'on',
          },
          {
            key: 'Strict-Transport-Security',
            value: 'max-age=63072000; includeSubDomains; preload',
          },
        ],
      },
      {
        source: '/api/:path*',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=3600, s-maxage=86400',
          },
        ],
      },
      {
        source: '/favicon.ico',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
      {
        source: '/_next/static/:path*',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
    ];
  },

  // Bundle optimization
  webpack: (config) => {
    // Ensure the optimization object exists
    if (!config.optimization) {
      config.optimization = {};
    }

    // Ensure splitChunks exists
    if (!config.optimization.splitChunks) {
      config.optimization.splitChunks = {};
    }

    // Ensure cacheGroups exists
    if (!config.optimization.splitChunks.cacheGroups) {
      config.optimization.splitChunks.cacheGroups = {};
    }

    // Now safely set the default cache group
    config.optimization.splitChunks.cacheGroups.default = {
      minChunks: 2,
      priority: -20,
      reuseExistingChunk: true,
    };

    return config;
  },
};

export default nextConfig;