PrefabsUploader

Let your players send their own builds to your Hytale server — safely. PrefabsUploader lets players upload prefabs (.prefab.json) straight from Discord. Your staff reviews each one in-game (with a live 3D preview) and, once approved, it becomes a placeable server prefab. No FTP, no file access, no trust required.

Why?

Players build amazing things in the Asset Editor — but getting those builds onto a live server normally means giving people file access or doing it by hand. PrefabsUploader turns that into a simple, moderated pipeline:

Player exports a prefab → drops it in Discord → staff approves in-game → it's live.

Every upload is validated and queued for review, so nothing lands on your world without a human saying "yes".

How it works

   PLAYER (Hytale)          DISCORD (bot)              STAFF (Hytale)
 ─────────────────       ────────────────           ─────────────────
  /pu link        ─────►  links account
  /pu import      ─────►  opens a private thread
        drops .prefab.json in the thread ─────►  queued for review
                                                 /pu validate  ◄─────
                                                 preview + Approve/Reject
        ◄───────── result (DM) ──────────────────────── approved → live

1. Pair once. A server admin installs the Discord bot and pairs the server with a one-time code.
2. Players link. Each player links their Hytale account to their Discord account (one time).
3. Upload. /pu import opens a private Discord thread (or a DM, if threads aren't available) where the player drops their .prefab.json.
4. Review. Staff runs /pu validate in-game to browse the queue, preview each prefab in 3D, and Approve or Reject.
5. Live. Approved prefabs are written to the server's prefab storage, ready to place.

Features

• 🧩 Player-driven uploads — builds come in from Discord, no file access needed.
• 🔎 In-game review queue with live 3D preview and one-click Approve / Reject.
• 🔗 Account linking — ties a Hytale player to a Discord user so uploads are attributable.
• 🧵 Private upload threads — each player gets their own thread; DM fallback if the bot can't open one.
• 🛡️ Validation & whitelist — size limits, block-count limits, and entity rejection before anything is saved.
• 🌍 Bilingual — Portuguese (pt-BR) and English, chosen automatically (Discord guild language for bot messages, server language in-game).
• ⚙️ Simple setup — three slash commands and you're done.
• 🔔 Result notifications — uploaders are told on Discord when their prefab is approved or rejected.

Setup (server admin)

1. Install the Discord bot into your Discord server (invite link provided in-game / by the hub).

2. Pair the server. In Hytale:

/pu config setup

You'll get a pairing code. On Discord, run:

/setup server <code>

3. Pick the uploads channel. On Discord, in the channel you want (or pass one):

/setup uploads            # uses the current channel
/setup uploads #prefabs    # or choose a channel

4. Set your Discord invite (required) so players can join to upload:

/setup invite https://discord.gg/your-server

Without it, players who aren't already in your Discord get an in-game message saying the invite isn't configured yet.

That's it — the in-game "please configure" broadcast stops once you're paired.

Configuration (config.properties)

The plugin reads its settings from:

mods/ProjectAtlasia_PrefabsUploader/config.properties

It's created automatically on first run, fully commented. Changing a value requires a server restart (Hytale has no hot-reload).

🔐 server.id and auth.token are managed for you. Treat auth.token like a password.

For players

Link your account (one time):

/pu link

Then on Discord:

/link <code>

You'll get an in-game confirmation when it's done.

Upload a prefab:

/pu import

The bot opens a private thread (or DMs you) — just drop your exported .prefab.json there. You'll be notified when staff reviews it.

For staff

Open the review UI in-game:

/pu validate

• Browse the pending queue, search, and select a card to preview the build in 3D.
• Approve → validated and saved as a server prefab.
• Reject → removed from the queue (the uploader is notified).

Commands

Aliases: /prefabs-uploader and /pu are the same command.

Permissions

Every in-game command is gated by a permission node, so you decide who can upload, link, and review:

Typical setup: grant import + link to your default player group, and the rest to staff/admins. Grant projectatlasia.prefabsuploader.command.* to give a role everything at once.

(The Discord-side /setup * commands are gated by Discord's own Manage Server / Administrator permission, not by these nodes.)

Where your files live (and where they don't)

PrefabsUploader stores nothing until you approve it:

• 🤖 The Discord bot stores no files. It only keeps a small pointer to your Discord message.
• 🗑️ Delete it from Discord, and the submission is gone. If a player removes their .prefab.json message before staff reviews it, the submission can no longer be fetched and is dropped — re-upload to try again.
• 🔁 The hub is just a proxy. Nothing is persisted on it; it never keeps a copy of your prefab.
• 💾 It's only written to your server when an admin approves it — that's the single moment a prefab becomes a real file on your machine.
• 📦 Max file size: 5 MB. This can be raised — visit our Discord support channel to request a higher limit.

Safety

Built to keep a public upload path from becoming an attack surface:

• Nothing is auto-placed. Every prefab waits for human approval.
• Validation on approval — size cap, block-count cap, and entities are rejected (prefabs are blocks only).
• Rate-limited everywhere (per player, per channel, per IP) to stop spam and brute-force.
• Authenticated — the server authenticates with Hytale; the integration uses a per-server token.
• No file access — players never touch your server's filesystem; uploads ride through Discord's CDN and are downloaded only at review time.

If the bot can't reach a player (missing permissions / strict privacy settings), it tells them in-game how to fix it instead of failing silently.

Requirements

• A Hytale server.
• A Discord server where you can add a bot (Manage Server / Administrator).
• Players need a Discord account and to be a member of your Discord.

Roadmap

Planned features:

• 🛡️ Claim / anti-raid integration — hook into claim and anti-raid plugins (aiming for broad, plugin-agnostic support) so prefabs can only be placed in areas the player is allowed to build in.
• 📤 In-game export (the reverse path) — select a coordinate range in-game and export it as a prefab, instead of only importing from Discord.

Languages

🇧🇷 Português (pt-BR) · 🇺🇸 English — selected automatically. Bot messages follow your Discord server's language; in-game messages follow your Hytale server's language.

Open-source plugin (GPL-3.0). Built by ProjectAtlasia.