はじめに

@lazarv/react-serverを使っていて沼ったのでまとめておきます

問題

Convexを使ってAPIを作成したところ以下のエラーが出ました

19:24:13 [react-server] [vite] Named export 'createRequire' not found. The requested module 'module' is a CommonJS module, which may not support all module.exports as named exports.
19:24:13 [react-server] CommonJS modules can always be imported via the default export, for example using:
19:24:13 [react-server] 
19:24:13 [react-server] import pkg from 'module';
19:24:13 [react-server] const {createRequire} = pkg;
19:24:13 [react-server] 
19:24:13 [react-server]   [stack]: SyntaxError: [vite] Named export 'createRequire' not found. The requested module 'module' is a CommonJS module, which may not support all module.exports as named exports.
19:24:13 [react-server] CommonJS modules can always be imported via the default export, for example using:
19:24:13 [react-server] 
19:24:13 [react-server] import pkg from 'module';
19:24:13 [react-server] const {createRequire} = pkg;
19:24:13 [react-server] 
19:24:13 [react-server]     at analyzeImportedModDifference (file:///home/jinwatanabe/workspace/tmp/koreda/node_modules/@lazarv/react-server/node_modules/vite/dist/node/module-runner.js:521:11)
19:24:13 [react-server]     at RSCModuleRunner.processImport (file:///home/jinwatanabe/workspace/tmp/koreda/node_modules/@lazarv/react-server/node_modules/vite/dist/node/module-runner.js:1129:56)
19:24:13 [react-server]     at RSCModuleRunner.cachedRequest (file:///home/jinwatanabe/workspace/tmp/koreda/node_modules/@lazarv/react-server/node_modules/vite/dist/node/module-runner.js:1165:21)
19:24:13 [react-server]   [message]: [vite] Named export 'createRequire' not found. The requested module 'module' is a CommonJS module, which may not support all module.exports as named exports.
19:24:13 [react-server] CommonJS modules can always be imported via the default export, for example using:
19:24:13 [react-server] 
19:24:13 [react-server] import pkg from 'module';
19:24:13 [react-server] const {createRequire} = pkg;
19:24:13 [react-server]

src/app/api/articles/GET.popular.server.ts

import { ConvexClient } from "convex/browser";
import { api } from "../../../convex/_generated/api";

const convexUrl = import.meta.env.VITE_CONVEX_URL;
if (!convexUrl) {
  throw new Error("VITE_CONVEX_URL is not defined");
}

const client = new ConvexClient(convexUrl);

export default async function GetPopular(request: Request) {
  const url = new URL(request.url);
  const limit = url.searchParams.get("limit")
    ? Number(url.searchParams.get("limit"))
    : 20;
  const articles = await client.query(api.articles.getPopular, {
    limit,
  });
  return new Response(JSON.stringify(articles));
}

解決方法

質問してみたところいまPRをリリースしようとしているとのことでした

バージョンを古いものをいれると今は解決できます。

$ npm i @lazarv/react-server@v0.0.0-experimental-44033c0-20250123-2c156f57

おわりに

ものすごく時間を使いましたが解決できてよかったです。