remixed v0

server.ts

@@ -0,0 +1,109 @@
+import path from "node:path";
+import express, { type NextFunction, type Request, type Response } from "express";
+import compression from "compression";
+import morgan from "morgan";
+import { createRequestHandler } from "@remix-run/express";
+import { createBullBoard } from "@bull-board/api";
+import { BullMQAdapter } from "@bull-board/api/bullMQAdapter";
+import { ExpressAdapter } from "@bull-board/express";
+import { GlobalRole } from "@prisma/client";
+
+import cronJobs from "~/cron-jobs";
+import queues from "~/queues";
+import logger from "~/utils/logger.server";
+import { __getSession } from "~/utils/session.server";
+import { type SessionUser } from "~/utils/auth.server";
+
+const app = express();
+app.use((req, res, next) => {
+	res.set("X-Fly-Region", process.env.FLY_REGION ?? "unknown");
+	res.set("Strict-Transport-Security", `max-age=31536000; preload`);
+	next();
+});
+
+// replay non-GET/HEAD/OPTIONS requests to the primary Fly.io region rather than read-only Postgres instances
+// learn more: https://fly.io/docs/getting-started/multi-region-databases/#replay-the-request
+app.all("*", (req, res, next) => {
+	const { method, path: pathname } = req;
+	const { PRIMARY_REGION, FLY_REGION } = process.env;
+	const isMethodReplayable = !["GET", "OPTIONS", "HEAD"].includes(method);
+	const isReadOnlyRegion = FLY_REGION && PRIMARY_REGION && FLY_REGION !== PRIMARY_REGION;
+	const shouldReplay = isMethodReplayable && isReadOnlyRegion;
+
+	if (!shouldReplay) {
+		return next();
+	}
+
+	const logInfo = {
+		pathname,
+		method,
+		PRIMARY_REGION,
+		FLY_REGION,
+	};
+	logger.info("Replaying:", logInfo);
+	res.set("fly-replay", `region=${PRIMARY_REGION}`);
+	return res.sendStatus(409);
+});
+
+app.disable("x-powered-by");
+app.use(compression());
+
+// cache static and immutable assets
+app.use(express.static("public", { immutable: true, maxAge: "1y" }));
+
+// setup background queues and cron jobs
+app.use("/admin", adminMiddleware);
+app.use("/admin/queues", setupBullBoard().getRouter());
+
+app.use(morgan("tiny"));
+
+app.all("*", (req, res, next) => {
+	if (process.env.NODE_ENV !== "production") {
+		purgeRequireCache();
+	}
+
+	return createRequestHandler({
+		build: require("./build"),
+		mode: process.env.NODE_ENV,
+	})(req, res, next);
+});
+
+const port = process.env.PORT || 3000;
+app.listen(port, () => {
+	require("./build"); // preload the build so we're ready for the first request
+	logger.info(`Server listening on port ${port}`);
+});
+
+async function adminMiddleware(req: Request, res: Response, next: NextFunction) {
+	const session = await __getSession(req.headers.cookie);
+	const user: SessionUser | undefined = session.data.user;
+	if (!user || user.role !== GlobalRole.SUPERADMIN) {
+		return res.setHeader("Location", "/sign-in").status(302).end();
+	}
+
+	next();
+}
+
+function setupBullBoard() {
+	const serverAdapter = new ExpressAdapter();
+	const cronJobsQueues = registerCronJobs();
+	createBullBoard({
+		queues: [...queues, ...cronJobsQueues].map((queue) => new BullMQAdapter(queue)),
+		serverAdapter,
+	});
+	serverAdapter.setBasePath("/admin/queues");
+	return serverAdapter;
+}
+
+function registerCronJobs() {
+	return cronJobs.map((registerCronJob) => registerCronJob());
+}
+
+const buildDir = path.join(process.cwd(), "build");
+function purgeRequireCache() {
+	for (const key in require.cache) {
+		if (key.startsWith(buildDir)) {
+			delete require.cache[key];
+		}
+	}
+}