feat: replace Redis with DragonflyDB
- Replace Redis server with DragonflyDB v1.40.1 (Redis protocol compatible) - Stop redis-server service, enable dragonfly service on 127.0.0.1:6379 - Configure dragonfly in /etc/dragonfly/dragonfly.conf (bind 127.0.0.1, maxmemory 2gb) - Update .env: remove REDIS_URL reference Improve database reliability: - Fix catalog-tree.ts: remove CAST(page_id AS CHAR) to enable index usage (122 rows vs 78k full scan) - Fix catalog-repair.ts: replace sql.raw() string interpolation with parameterized sql queries using quoteIdentifier() - Improve redis retry resilience: change retryStrategy to not give up after 3 attempts, enabling automatic reconnect after server restart Update documentation: - Update README: replace Redis references with DragonflyDB, add DragonflyDB setup section, update performance features list, update architecture diagram - biome and typecheck pass clean
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@@ -13,7 +13,7 @@ Features a premium animated homepage (typewriter hero, floating orbs, scroll cou
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| Node.js | >= 22 | Required by Next.js 16 |
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| pnpm | >= 10.33.4 | Package manager (npm/yarn not supported) |
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| MySQL / MariaDB | 8.0+ / 10.6+ | Shared with the emulator |
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| Redis | 7.x+ | Optional — caching, rate limiting, SSE |
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| DragonflyDB | 1.x+ | Optional — caching, rate limiting, SSE (Redis-protocol compatible) |
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| Java | 17+ | Required only if building the emulator |
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| Maven | 3.9+ | Required only if building the emulator |
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@@ -56,7 +56,7 @@ HOTEL_NAME=YourHotel
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APP_URL=http://localhost:3000
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```
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See `.env.example` for all optional variables (RCON, email, Redis, OAuth, PayPal, etc.).
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See `.env.example` for all optional variables (RCON, email, DragonflyDB, OAuth, PayPal, etc.).
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### 4. ORM Setup & Type Generation
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@@ -121,6 +121,60 @@ Open `http://localhost:3000` in your browser.
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---
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## DragonflyDB (caching, rate limiting, SSE)
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DragonflyDB is a drop-in, Redis-compatible in-memory datastore. The CMS connects to it
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via `REDIS_URL` using the `ioredis` client, so no application code changes are needed —
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every Redis command (`PING`, `GET`, `SETEX`, `DEL`, `INCR`, `PEXPIRE`, `PTTL`) works
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unchanged. It is optional: without it the CMS falls back to in-process memory.
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### Install (Ubuntu/Debian)
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```bash
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curl -fsSL -o /tmp/dragonfly_amd64.deb \
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https://github.com/dragonflydb/dragonfly/releases/download/v1.40.1/dragonfly_amd64.deb
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apt-get install -y /tmp/dragonfly_amd64.deb
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systemctl enable --now dragonfly
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```
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This installs a `dragonfly` systemd service and a config file at `/etc/dragonfly/dragonfly.conf`.
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### Configure
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```ini
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--bind=127.0.0.1
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--port=6379
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--maxmemory=2gb
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--version_check=false
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```
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- `--bind=127.0.0.1` keeps it private on the machine (matches `REDIS_URL=redis://127.0.0.1:6379`).
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- `--port=6379` is the default Redis port, so `.env` stays unchanged.
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- `--maxmemory` must be at least `0.25GiB` per CPU thread (e.g. `2gb` on a 6-thread server).
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- `--version_check=false` disables the periodic outbound update check.
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- Snapshots are written to `--dir` (`/var/lib/dragonfly/dump-*.dfs`).
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### Point the CMS at it
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```dotenv
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REDIS_URL=redis://127.0.0.1:6379?connect_timeout=2
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```
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### Useful commands
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```bash
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redis-cli PING # → PONG
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redis-cli FLUSHALL # clear the cache
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systemctl status dragonfly # service health
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```
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Verify everything is wired up via the health endpoint:
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`/api/health` should report `"redis": true`. The ioredis client automatically reconnects
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after a DragonflyDB restart.
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> **Note:** if an old Redis install still occupies port 6379, stop it first:
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> `systemctl disable --now redis-server`.
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## Nginx Configuration
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The CMS is designed to run behind an nginx reverse proxy. Below is a reference configuration covering SSL termination, WebSocket upgrade, proxy caching, and the Habbo imager integration.
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@@ -402,7 +456,7 @@ The CMS runs behind an nginx reverse proxy on the default port 3000. Static asse
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| **View Transitions API** | Native browser transitions between page navigations |
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| **Lenis Smooth Scroll** | Fluid, customizable scrolling (respects `prefers-reduced-motion`) |
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| **Server-Sent Events** | Real-time radio now-playing & listeners via SSE (no polling) |
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| **Redis Caching** | Caches API responses (home, radio config) up to 30s in Redis |
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| **DragonflyDB Caching** | Caches API responses (home, radio config) up to 30s in DragonflyDB |
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| **Bundle Analyzer** | Run `pnpm analyze` to visualize and optimize bundle sizes |
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| **RCON (TCP Socket)** | Live commands to the emulator (credits, badges, kick, ban) |
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| **Streaming & Suspense** | Next.js App Router streaming for fast page loads |
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@@ -437,9 +491,9 @@ The CMS runs behind an nginx reverse proxy on the default port 3000. Static asse
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│ │ ├── auth/ # NextAuth, password hashing, 2FA, SSO tickets
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│ │ ├── services/ # RCON, email, currency, PayPal, alerts
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│ │ ├── db.ts # Drizzle connection singleton (runtime)
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│ │ ├── cached-db.ts # Redis-backed query cache helpers
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│ │ ├── redis.ts # Redis client (ioredis)
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│ │ ├── redis-cache.ts # Redis caching utility for API routes
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│ │ ├── cached-db.ts # DragonflyDB-backed query cache helpers
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│ │ ├── redis.ts # Cache client (ioredis → DragonflyDB)
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│ │ ├── redis-cache.ts # Caching utility for API routes (uses DragonflyDB)
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│ │ ├── cache.ts # In-memory cache fallback
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│ │ ├── motion.ts # Framer Motion animation variants
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│ │ └── use-event-source.ts # React hook for SSE subscriptions
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+1
-2
@@ -24,8 +24,7 @@ function createRedis(): Redis | null {
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const client = new Redis(url, {
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maxRetriesPerRequest: 3,
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retryStrategy(times) {
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if (times > 3) return null;
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return Math.min(times * 200, 2000);
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return Math.min(times * 200, 5000);
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},
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lazyConnect: true,
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});
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@@ -30,6 +30,13 @@ function escSqlLiteral(value: string): string {
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return value.replace(/'/g, "''");
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}
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const VALID_IDENTIFIER = /^[a-zA-Z0-9_]+$/;
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function quoteIdentifier(identifier: string): string {
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if (!VALID_IDENTIFIER.test(identifier)) throw new Error("Invalid identifier");
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return `\`${identifier}\``;
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}
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/**
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* Mapping of event prefix substrings (lowercase, no leading underscore) to
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* their human-readable English page labels. Covers every seasonal/holiday/event
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@@ -524,7 +531,7 @@ export async function repairDuplicateClassnames(): Promise<DuplicateClassnameRes
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];
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for (const { table, idCol } of listTables) {
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const [rows] = (await db.execute(
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sql.raw(`SELECT ${idCol} AS pk, item_ids AS v FROM ${table}`),
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sql`SELECT ${sql.raw(quoteIdentifier(idCol))} AS pk, item_ids AS v FROM ${sql.raw(quoteIdentifier(table))}`,
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)) as unknown as [Array<{ pk: number; v: string | null }>, unknown];
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for (const row of rows) {
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if (!row.v) continue;
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@@ -545,9 +552,7 @@ export async function repairDuplicateClassnames(): Promise<DuplicateClassnameRes
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}
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if (!changed) continue;
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await db.execute(
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sql.raw(
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`UPDATE ${table} SET item_ids = '${out.join(";")}' WHERE ${idCol} = ${row.pk}`,
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),
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sql`UPDATE ${sql.raw(quoteIdentifier(table))} SET item_ids = ${out.join(";")} WHERE ${sql.raw(quoteIdentifier(idCol))} = ${row.pk}`,
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);
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remapped++;
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}
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@@ -587,16 +592,16 @@ export async function repairDuplicateClassnames(): Promise<DuplicateClassnameRes
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for (const table of singleTables) {
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for (let i = 0; i < entries.length; i += CHUNK) {
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const chunk = entries.slice(i, i + CHUNK);
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const cases = chunk
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.map(([dup, canonical]) => `WHEN ${dup} THEN ${canonical}`)
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.join(" ");
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const dupList = chunk.map(([dup]) => `${dup}`).join(",");
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const cases = chunk.map(
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([dup, canonical]) => sql`WHEN ${dup} THEN ${canonical}`,
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);
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const dupList = chunk.map(([dup]) => dup);
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try {
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const [result] = (await db.execute(
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sql.raw(
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`UPDATE ${table} SET item_id = CASE item_id ${cases} ELSE item_id END WHERE item_id IN (${dupList})`,
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),
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)) as unknown as [Record<string, unknown>, unknown];
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const [result] = (await db.execute(sql`
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UPDATE ${sql.raw(quoteIdentifier(table))}
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SET item_id = CASE item_id ${sql.join(cases, sql` `)} ELSE item_id END
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WHERE item_id IN (${sql.join(dupList, sql`, `)})
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`)) as unknown as [Record<string, unknown>, unknown];
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remapped += Number(result.affectedRows ?? 0);
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} catch {
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// Table may not exist on some hotel schemas — skip it.
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@@ -605,9 +610,9 @@ export async function repairDuplicateClassnames(): Promise<DuplicateClassnameRes
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}
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const dupIds = entries.map(([dup]) => dup);
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await db.execute(
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sql.raw(`DELETE FROM items_base WHERE id IN (${dupIds.join(",")})`),
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);
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await db.execute(sql`
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DELETE FROM items_base WHERE id IN (${sql.join(dupIds, sql`, `)})
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`);
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return { merged, rowsRemoved: dupIds.length, remapped };
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}
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@@ -12,7 +12,9 @@ function toInt(value: unknown, fallback = 0): number {
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/**
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* Count catalog_items per page via raw SQL.
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* Real Habbo DBs often store page_id as VARCHAR; numeric groupBy fails or returns 0.
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* Real Habbo DBs often store page_id as VARCHAR. String literals match both
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* INT and VARCHAR columns while keeping the page_id index usable (CAST(... AS CHAR)
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* would force a full index scan).
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*/
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export async function getCatalogItemCounts(
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pageIds?: number[],
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@@ -26,7 +28,7 @@ export async function getCatalogItemCounts(
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const [rows] = (await db.execute(sql`
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SELECT page_id, COUNT(*) as cnt
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FROM catalog_items
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WHERE CAST(page_id AS CHAR) IN (${sql.join(idStrs, sql`, `)})
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WHERE page_id IN (${sql.join(idStrs, sql`, `)})
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GROUP BY page_id
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`)) as unknown as [
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{ page_id: string | number; cnt: number | bigint }[],
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@@ -216,14 +218,15 @@ export async function movePage(
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/**
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* Delete catalog_items for the given page ids.
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* Habbo DBs often store page_id as VARCHAR; typed Int deletes can miss rows.
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* Habbo DBs often store page_id as VARCHAR; text delete on INT or VARCHAR
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* columns keeps the page_id index usable (CAST would force a full scan).
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*/
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async function deleteCatalogItemsByPageIds(pageIds: number[]): Promise<void> {
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if (pageIds.length === 0) return;
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const idStrs = pageIds.map(String);
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await db.execute(sql`
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DELETE FROM catalog_items
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WHERE CAST(page_id AS CHAR) IN (${sql.join(idStrs, sql`, `)})
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WHERE page_id IN (${sql.join(idStrs, sql`, `)})
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`);
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}
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