CodeClaim

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CodeClaim

A server-side Fabric mod for Minecraft 1.21.1 that allows players to redeem codes for rewards. No client mod required. No database required.

Minecraft

Fabric

Java

License

Server Side

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Overview

CodeClaim lets server administrators create redeemable codes that reward players with any server command — give items, Pokemon, broadcast titles, and more. Each player can only redeem each code once, and each code can have a global usage limit. All data is stored in simple JSON files with no external database setup required.

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Features

- Any player can use `/claim` without operator permissions - Each player can only redeem each code once, enforced by UUID - Per-code global usage limit via `max_uses` - Set `max_uses: -1` for unlimited redemptions - Execute any server command as a reward using `%player%` as a placeholder - All data auto-saves to a local JSON file - Hot-reload config and data without restarting the server - Server-side only — players do not need to install anything

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Requirements

- Minecraft 1.21.1 - Fabric Loader 0.15.0 or later - Fabric API 0.102.0+1.21.1 - Java 21

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Installation

1. Download `codeclaim-1.0.0.jar` from the Releases page 2. Download all required dependencies: Fabric Language Kotlin, Fabric API 3. Place the file in your server's `mods/` folder alongside Fabric API 4. Start the server — the config file will be automatically generated at `config/codeclaim.json` 5. Edit the config to define your codes and rewards 6. Use `/claimadmin reload` to apply any changes without restarting

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Commands

| Command | Permission | Description | |---------|------------|-------------| | `/claim <code>` | All players | Redeem a code and receive its reward | | `/claimadmin reload` | OP level 2 | Reload config and player data from disk | | `/claimadmin info <code>` | OP level 2 | View usage statistics for a code |

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Configuration

Config file location: `config/codeclaim.json`

```json { "messages": { "invalid_code": "&cCode '&4{code}&c' does not exist!", "already_claimed": "&cYou have already redeemed '&4{code}&c'!", "max_uses": "&cCode '&4{code}&c' has reached its usage limit!", "success": "&aSuccessfully redeemed code '&2{code}&a'!", "reloaded": "&aCodeClaim config reloaded!" }, "codes": { "WELCOME2024": { "max_uses": -1, "commands": [ "give %player% minecraft:bread 16" ] }, "SHINY_EVENT": { "max_uses": 100, "commands": [ "givepokemonother %player% moltres form=galarian", "title @a title {"text":"A player claimed SHINY_EVENT!","color":"gold"}" ] }, "GRAND_PRIZE": { "max_uses": 1, "commands": [ "give %player% minecraft:netherite_ingot 3", "say %player% claimed the Grand Prize!" ] } } } ```

Field Reference

| Field | Description | |-------|-------------| | `max_uses` | Maximum total redemptions across all players. `-1` means unlimited. | | `commands` | List of server commands to execute when the code is successfully redeemed. | | `%player%` | Placeholder replaced with the redeeming player's username at runtime. | | `{code}` | Placeholder replaced with the entered code in message strings. | | `&a`, `&c` | Standard Minecraft color codes supported in all message fields. |

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Data Storage

Player redemption history is automatically saved to:

``` data/codeclaim_data.json ```

This file tracks which players have redeemed which codes, and the total usage count per code. Back up this file regularly to preserve redemption history across server migrations.

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Building from Source

Requirements: JDK 21, Gradle 8.8 or later

```bash git clone https://github.com/YOUR_USERNAME/codeclaim cd codeclaim

Linux / macOS

./gradlew build

Windows

gradlew.bat build ```

The compiled jar will be output to `build/libs/codeclaim-1.0.0.jar`.

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Compatibility

| Mod | Status | |-----|--------| | Cobblemon | Compatible — use `givepokemonother %player%` | | LuckPerms | Compatible | | Any server-side command mod | Compatible |

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License

This project is licensed under the MIT License. See LICENSE for details.