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Migrate Express to Fastify #154

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de0a67d
Migrate from Express to Fastify
google-labs-jules[bot] Dec 1, 2025
447fbd2
Prettified Code!
google-labs-jules[bot] Dec 1, 2025
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216 changes: 124 additions & 92 deletions index.js
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Original file line number Diff line number Diff line change
@@ -1,11 +1,12 @@
import express from "express";
import { createServer } from "http";
import Fastify from "fastify";
import fastifyStatic from "@fastify/static";
import fastifyCors from "@fastify/cors";
import fastifyFormbody from "@fastify/formbody";
import { Server as SocketIO } from "socket.io";
import path from "path";
import { fileURLToPath } from "url";
import { dirname } from "path";
import { createRequire } from "module";
import cors from "cors";
import "dotenv/config";
import { Op } from "sequelize";
import { server as wisp, logging } from "@mercuryworkshop/wisp-js/server";
Expand Down Expand Up @@ -40,21 +41,53 @@ try {

const modelManager = new ModelManager();

const app = express();
app.use("/epoxy/", express.static(epoxyPath));
app.use("/baremux/", express.static(baremuxPath));
app.use("/scram/", express.static(scramjetPath));
const server = createServer(app);
const fastify = Fastify({
bodyLimit: 52428800, // 50MB
});

// Static file serving
fastify.register(fastifyStatic, {
root: epoxyPath,
prefix: "/epoxy/",
decorateReply: false,
list: true,
});
fastify.register(fastifyStatic, {
root: baremuxPath,
prefix: "/baremux/",
decorateReply: false,
list: true,
});
fastify.register(fastifyStatic, {
root: scramjetPath,
prefix: "/scram/",
decorateReply: false,
list: true,
});
fastify.register(fastifyStatic, {
root: path.join(__dirname, "static"),
prefix: "/",
});

// Plugins
fastify.register(fastifyFormbody);
fastify.register(fastifyCors);

// Routes
fastify.register(authRoutes, { prefix: "/api" });
fastify.register(userRoutes, { prefix: "/api" });
fastify.register(messagingRoutes, { prefix: "/api" });
fastify.register(chatRoutes, { prefix: "/api" });
fastify.register(searchRoutes, { prefix: "/api" });
fastify.register(proxyRoutes, { prefix: "/api/music" });

const io = new SocketIO({
const io = new SocketIO(fastify.server, {
cors: {
origin: "*",
methods: ["GET", "POST"],
},
});

io.attach(server);

const activeConversations = new Map();
const connectedUsers = new Map();
const activeChats = new Map();
Expand All @@ -63,23 +96,66 @@ try {

initializeChatRoute(modelManager, activeConversations);

app.use(express.json({ limit: "50mb" }));
app.use(express.urlencoded({ extended: true, limit: "50mb" }));
app.use(cors());
// Custom static file handler for extensionless URLs
// The original express code did this:
// 1. serve static files (via express.static)
// 2. if GET and no extension, try to serve url + .html
// 3. define specific routes like /a -> apps.html
// 4. /chat/:chatId -> chat.html
// 5. 404 handler

app.use((req, res, next) => {
if (path.extname(req.url) === ".js") {
res.setHeader("Content-Type", "application/javascript");
}
next();
// In Fastify, @fastify/static handles #1.
// For #3 and #4, we can define routes.
// For #2, we can use setNotFoundHandler or a wildcard route, but let's try to map the specific routes first.

const routes = [
{ path: "/a", file: "apps.html" },
{ path: "/g", file: "games.html" },
{ path: "/s", file: "settings.html" },
{ path: "/!", file: "proxy.html" },
{ path: "/", file: "index.html" },
{ path: "/d", file: "dashboard.html" },
{ path: "/e", file: "ai.html" },
{ path: "/-", file: "media.html" },
{ path: "/m", file: "media.html" },
{ path: "/profile", file: "account.html" },
{ path: "/login", file: "login.html" },
{ path: "/signup", file: "signup.html" },
{ path: "/l", file: "/assets/404/loading.html" },
{ path: "/c", file: "chat.html" },
{ path: "/chat", file: "chat.html" },
];

routes.forEach((route) => {
fastify.get(route.path, (req, reply) => {
reply.sendFile(route.file);
});
});

fastify.get("/chat/:chatId", (req, reply) => {
reply.sendFile("chat.html");
});

app.use("/api", authRoutes);
app.use("/api", userRoutes);
app.use("/api", messagingRoutes);
app.use("/api", chatRoutes);
app.use("/api", searchRoutes);
app.use("/api/music", proxyRoutes);
// Javascript MIME type handling was done via middleware in Express:
// app.use((req, res, next) => { if (path.extname(req.url) === ".js") ... })
// Fastify/static usually handles this correctly.

// The "extensionless -> .html" fallback (#2)
fastify.setNotFoundHandler(async (req, reply) => {
if (req.method === "GET" && !path.extname(req.url)) {
const potentialFile = path.join(__dirname, "static", req.url + ".html");
const require = createRequire(import.meta.url);
const fs = require("fs").promises;

try {
await fs.access(potentialFile);
return reply.sendFile(req.url + ".html");
} catch (err) {
// File doesn't exist, proceed to 404
}
}
reply.status(404).sendFile("404.html");
});

io.on("connection", (socket) => {
socket.on("authenticate", async (data) => {
Expand Down Expand Up @@ -306,74 +382,24 @@ try {
}
}, 60000);

app.use(express.static(path.join(__dirname, "static")));
app.use((req, res, next) => {
if (req.method === "GET" && !path.extname(req.url)) {
const filePath = path.join(__dirname, "static", req.url + ".html");
res.sendFile(filePath, (err) => {
if (err) {
next();
}
});
} else {
next();
}
});

const routes = [
{ path: "/a", file: "apps.html" },
{ path: "/g", file: "games.html" },
{ path: "/s", file: "settings.html" },
{ path: "/!", file: "proxy.html" },
{ path: "/", file: "index.html" },
{ path: "/d", file: "dashboard.html" },
{ path: "/e", file: "ai.html" },
{ path: "/-", file: "media.html" },
{ path: "/m", file: "media.html" },
{ path: "/profile", file: "account.html" },
{ path: "/login", file: "login.html" },
{ path: "/signup", file: "signup.html" },
{ path: "/l", file: "/assets/404/loading.html" },
{ path: "/c", file: "chat.html" },
{ path: "/chat", file: "chat.html" },
];

routes.forEach((route) => {
app.get(route.path, (req, res) => {
res.sendFile(path.join(__dirname, "static", route.file));
fastify.ready().then(() => {
// Wisp/Epoxy/Baremux/Scramjet handling
// We attach upgrade listeners to the underlying node server
fastify.server.removeAllListeners("upgrade");
fastify.server.on("upgrade", (req, socket, head) => {
if (req.url.startsWith("/wisp/")) {
wisp.routeRequest(req, socket, head);
} else {
io.engine.handleUpgrade(req, socket, head);
}
});
});

app.get("/chat/:chatId", (req, res) => {
res.sendFile(path.join(__dirname, "static", "chat.html"));
});

app.use((req, res) => {
const notFoundPage = path.join(__dirname, "static", "404.html");
res.status(404).sendFile(notFoundPage);
});

server.removeAllListeners("upgrade");

server.on("upgrade", (req, socket, head) => {
if (req.url.startsWith("/wisp/")) {
wisp.routeRequest(req, socket, head);
} else {
io.engine.handleUpgrade(req, socket, head);
}
});

server.on("listening", () => {
console.log(`\n------------------------------------`);
console.log(`🔗 URL: http://localhost:${process.env.PORT}`);
console.log(`------------------------------------\n`);
});

function shutdown(signal) {
console.log("-----------------------------------------------");
console.log(` Shutting Down (Signal: ${signal}) `);
console.log("-----------------------------------------------\n");
server.close(() => {
fastify.close(() => {
console.log(" 55GMS has shut down.");
io.close();
process.exit(0);
Expand All @@ -383,13 +409,19 @@ try {
process.on("SIGTERM", () => shutdown("SIGTERM"));
process.on("SIGINT", () => shutdown("SIGINT"));

server.listen({
port: process.env.PORT || 8080,
});
const start = async () => {
try {
await fastify.listen({ port: process.env.PORT || 8080, host: "0.0.0.0" });
console.log(`\n------------------------------------`);
console.log(`🔗 URL: http://localhost:${process.env.PORT || 8080}`);
console.log(`------------------------------------\n`);
} catch (err) {
console.error("Failed to start server:", err);
process.exit(1);
}
};

server.on("error", (error) => {
console.error("Server error:", error);
});
start();
} catch (e) {
console.error("Failed to start server:", e);
process.exit(1);
Expand Down
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