next.config.js

const jssConfig = require("./src/temp/config");
const { getPublicUrl } = require("@sitecore-jss/sitecore-jss-nextjs");
const plugins = require("./src/temp/next-config-plugins") || {};

const publicUrl = getPublicUrl();

/**
 * @type {import('next').NextConfig}
 */
const nextConfig = {
  // Set assetPrefix to our public URL
  assetPrefix: publicUrl,

  // Allow specifying a distinct distDir when concurrently running app in a container
  distDir: process.env.NEXTJS_DIST_DIR || ".next",

  // Make the same PUBLIC_URL available as an environment variable on the client bundle
  env: {
    PUBLIC_URL: publicUrl,
  },

  i18n: {
    // These are all the locales you want to support in your application.
    // These should generally match (or at least be a subset of) those in Sitecore.
    locales: ["en"],
    // This is the locale that will be used when visiting a non-locale
    // prefixed path e.g. `/styleguide`.
    defaultLocale: jssConfig.defaultLanguage,
  },

  // Enable React Strict Mode
  reactStrictMode: true,

  async rewrites() {
    // When in connected mode we want to proxy Sitecore paths off to Sitecore
    return [
      // API endpoints
      {
        source: "/sitecore/api/:path*",
        destination: `${jssConfig.sitecoreApiHost}/sitecore/api/:path*`,
      },
      // media items
      {
        source: "/-/:path*",
        destination: `${jssConfig.sitecoreApiHost}/-/:path*`,
      },
      // visitor identification
      {
        source: "/layouts/system/:path*",
        destination: `${jssConfig.sitecoreApiHost}/layouts/system/:path*`,
      },
      // healthz check
      {
        source: "/healthz",
        destination: "/api/healthz",
      },
      // rewrite for Sitecore service pages
      {
        source: "/sitecore/service/:path*",
        destination: `${jssConfig.sitecoreApiHost}/sitecore/service/:path*`,
      },
    ];
  },
};

module.exports = () => {
  // Run the base config through any configured plugins
  return Object.values(plugins).reduce(
    (acc, plugin) => plugin(acc),
    nextConfig,
  );
};