@esmx/core/dist/app.mjs

A high-performance microfrontend framework supporting Vue, React, Preact, Solid, and Svelte with SSR and Module Federation capabilities.

import { pathToFileURL } from "node:url";
import { createLoaderImport } from "@esmx/import";
import {
  RenderContext
} from "./render-context.mjs";
import { createMiddleware } from "./utils/middleware.mjs";
export async function createApp(esmx, command) {
  const render = command === esmx.COMMAND.start ? await createStartRender(esmx) : createErrorRender(esmx);
  return {
    middleware: createMiddleware(esmx),
    render
  };
}
async function createStartRender(esmx) {
  const baseURL = pathToFileURL(esmx.resolvePath("dist/server"));
  const importMap = await esmx.getImportMap("server");
  const loaderImport = createLoaderImport(baseURL, importMap);
  return async (options) => {
    const rc = new RenderContext(esmx, options);
    const result = await loaderImport(`${esmx.name}/src/entry.server`);
    const serverRender = result[rc.entryName];
    if (typeof serverRender === "function") {
      await serverRender(rc);
    }
    return rc;
  };
}
function createErrorRender(esmx) {
  return (options) => {
    throw new Error(
      `App instance is only available in production and can only execute built artifacts.`
    );
  };
}