88 lines
2.3 KiB
TypeScript
88 lines
2.3 KiB
TypeScript
import express from "express";
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import compression from "compression";
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import morgan from "morgan";
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import { createRequestHandler } from "@remix-run/express";
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import logger from "~/utils/logger.server";
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import { setupBullBoard } from "./queues";
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import { purgeRequireCache } from "./purge-require-cache";
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const environment = process.env.NODE_ENV;
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const app = express();
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app.use((req, res, next) => {
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res.set("X-Fly-Region", process.env.FLY_REGION ?? "unknown");
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res.set("Strict-Transport-Security", `max-age=31536000; preload`);
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next();
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});
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// replay non-GET/HEAD/OPTIONS requests to the primary Fly.io region rather than read-only Postgres instances
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// learn more: https://fly.io/docs/getting-started/multi-region-databases/#replay-the-request
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app.all("*", (req, res, next) => {
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const { method, path: pathname } = req;
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const { PRIMARY_REGION, FLY_REGION } = process.env;
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const isMethodReplayable = !["GET", "OPTIONS", "HEAD"].includes(method);
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const isReadOnlyRegion = FLY_REGION && PRIMARY_REGION && FLY_REGION !== PRIMARY_REGION;
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const shouldReplay = isMethodReplayable && isReadOnlyRegion;
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if (!shouldReplay) {
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return next();
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}
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const logInfo = {
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pathname,
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method,
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PRIMARY_REGION,
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FLY_REGION,
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};
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logger.info("Replaying:", logInfo);
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res.set("fly-replay", `region=${PRIMARY_REGION}`);
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return res.sendStatus(409);
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});
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app.disable("x-powered-by");
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app.use(
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compression({
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filter(req, res) {
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const contentTypeHeader = res.getHeader("Content-Type");
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let contentType = "";
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if (contentTypeHeader) {
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if (Array.isArray(contentTypeHeader)) {
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contentType = contentTypeHeader.join(" ");
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} else {
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contentType = String(contentTypeHeader);
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}
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}
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if (contentType.includes("text/event-stream")) {
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return false;
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}
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return true;
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},
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}),
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);
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// cache static and immutable assets
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app.use(express.static("public", { immutable: true, maxAge: "1y" }));
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// setup background queues and cron jobs
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app.use("/admin/queues", setupBullBoard().getRouter());
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app.use(morgan("tiny"));
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app.all("*", (req, res, next) => {
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if (environment !== "production") {
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purgeRequireCache();
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}
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return createRequestHandler({
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build: require("../build"),
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mode: environment,
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})(req, res, next);
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});
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const port = process.env.PORT || 3000;
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app.listen(port, () => {
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logger.info(`Server listening on port ${port}`);
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});
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