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server.js
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server.js
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import * as serverBuild from "@remix-run/dev/server-build";
import { createRequestHandler } from "@remix-run/express";
import compression from "compression";
import express from "express";
import morgan from "morgan";
import { spawn } from "node:child_process";
import process from "node:process";
let studioProcess;
const app = express();
app.use(compression());
// http://expressjs.com/en/advanced/best-practice-security.html#at-a-minimum-disable-x-powered-by-header
app.disable("x-powered-by");
// Remix fingerprints its assets so we can cache forever.
app.use("/build", express.static("public/build", { immutable: true, maxAge: "1y" }));
// Everything else (like favicon.ico) is cached for an hour. You may want to be
// more aggressive with this caching.
app.use(express.static("public/", { maxAge: "1h" }));
if (process.env.EXPOSE_PRISMA_STUDIO === "true") {
const port = process.env.PRISMA_STUDIO_PORT || 5555;
const proxy = require("express-http-proxy");
const cheerio = require("cheerio");
studioProcess = spawn("npx", ["prisma", "studio", "--browser", "none", "--port", port], { stdio: "inherit" });
app.all(
"*",
proxy(`http://localhost:${port}`, {
filter: (req) => req.headers?.referer?.includes("__db") || req.url?.includes("__db"),
userResDecorator: (proxyRes, proxyResData, userReq, userRes) => {
if (userReq.path === "/__db") {
const $ = cheerio.load(proxyResData);
$("html head").prepend('<base href="/__db/">');
return $.root().html();
}
return proxyResData;
},
proxyReqPathResolver: (req) => req.url.replace("/__db", ""),
})
);
}
app.use(morgan("tiny"));
app.all(
"*",
createRequestHandler({
build: serverBuild,
mode: process.env.NODE_ENV,
})
);
const hostPort = process.env.HOST_PORT;
const appPort = process.env.APP_PORT || 3000;
const server = app.listen(appPort, () => {
console.log(`Express server listening at http://localhost:${hostPort ?? appPort}`);
});
process.on("SIGINT", shutdown);
process.on("SIGTERM", shutdown);
function shutdown() {
console.log("Shutting down server...");
studioProcess?.kill("SIGTERM");
server?.close((err) => {
if (err) console.log("Shutdown encountered error ", err);
process.exit(err ? 1 : 0);
});
}