fix: Remix serverless entry not found

internal/nodejs/remix/index.js

@@ -0,0 +1,76 @@
+import {
+	createRequestHandler as createRemixRequestHandler,
+	writeReadableStreamToWritable,
+	installGlobals,
+} from '@remix-run/node';
+
+installGlobals();
+
+import * as build from './build/index.js';
+
+const handleRequest = createRemixRequestHandler(
+	build.default || build,
+	process.env.NODE_ENV
+);
+
+function createRemixHeaders(requestHeaders) {
+	const headers = new Headers();
+
+	for (const key in requestHeaders) {
+		const header = requestHeaders[key];
+		// set-cookie is an array (maybe others)
+		if (Array.isArray(header)) {
+			for (const value of header) {
+				headers.append(key, value);
+			}
+		} else {
+			headers.append(key, header);
+		}
+	}
+
+	return headers;
+}
+
+function createRemixRequest(req, res) {
+	const host = req.headers['x-forwarded-host'] || req.headers['host'];
+	const protocol = req.headers['x-forwarded-proto'] || 'https';
+	const url = new URL(req.url, `${protocol}://${host}`);
+
+	// Abort action/loaders once we can no longer write a response
+	const controller = new AbortController();
+	res.on('close', () => controller.abort());
+
+	const init = {
+		method: req.method,
+		headers: createRemixHeaders(req.headers),
+		signal: controller.signal,
+	};
+
+	if (req.method !== 'GET' && req.method !== 'HEAD') {
+		init.body = req;
+	}
+
+	return new Request(url.href, init);
+}
+
+async function sendRemixResponse(res, nodeResponse) {
+	res.statusMessage = nodeResponse.statusText;
+	let multiValueHeaders = nodeResponse.headers.raw();
+	res.writeHead(
+		nodeResponse.status,
+		nodeResponse.statusText,
+		multiValueHeaders
+	);
+
+	if (nodeResponse.body) {
+		await writeReadableStreamToWritable(nodeResponse.body, res);
+	} else {
+		res.end();
+	}
+}
+
+export default async (req, res) => {
+	const request = createRemixRequest(req, res);
+	const response = await handleRequest(request);
+	await sendRemixResponse(res, response);
+};

internal/nodejs/remix/main.go

@@ -2,6 +2,7 @@
 package remix
 
 import (
+	_ "embed"
 	"encoding/json"
 	"fmt"
 	"log"
@@ -13,6 +14,9 @@ import (
 	"github.com/zeabur/zbpack/pkg/types"
 )
 
+//go:embed index.js
+var indexJs string
+
 // TransformServerless will transform the build output of Remix app to the serverless build output format of Zeabur
 func TransformServerless(workdir string) error {
 
@@ -91,10 +95,7 @@ func TransformServerless(workdir string) error {
 		return fmt.Errorf("copy package.json: %w", err)
 	}
 
-	indexjs := `import entry from './build/server-build-nodejs-eyJydW50aW1lIjoibm9kZWpzIn0.mjs';
-export default entry;`
-
-	err = os.WriteFile(path.Join(zeaburOutputDir, "functions/index.func/index.mjs"), []byte(indexjs), 0644)
+	err = os.WriteFile(path.Join(zeaburOutputDir, "functions/index.func/index.mjs"), []byte(indexJs), 0644)
 	if err != nil {
 		return fmt.Errorf("write index.mjs: %w", err)
 	}