YuPay

🎮 YuPay —— Make Sponsorship Management a Pleasure

Minecraft server sponsorship has never been been this elegant.

Direct integration with WeChat Pay & Alipay, redeem code system, refund review, multi-language, full lifecycle event listening — everything you need, YuPay delivers it all at once. Free, no middlemen, no tricks. 100% of the revenue goes straight to your account. The only fees are those charged by Alipay and WeChat.

📦 What Is It

YuPay is a free, modern payment plugin tailored for Minecraft servers. It breaks down the hassle of "sponsorship management" into four steps: Initiate → Pay → Receive → Record. Every step is automated, every step traceable.

Server operators use it to collect sponsorships, players use it to scan and pay. Both sides enjoy a worry-free experience. Supports direct API integration with WeChat Pay and Alipay — no third-party relay, your funds stay secure in your own hands.

⚠️ This plugin is designed for scenarios where "players voluntarily sponsor server operations". Please ensure usage complies with local laws and payment platform regulations.

✨ Highlights at a Glance

🔄 What a Complete Sponsorship Looks Like

1. Player executes a command, e.g. /donate 50 wechat
2. System creates order asynchronously, writes to database
3. Calls WeChat/Alipay API to generate payment QR code
4. Depending on your config, sends clickable link, text-art QR in chat, or map QR in inventory
5. Player scans and completes payment
6. Payment platform calls back to your server
7. Plugin verifies signature, confirms receipt, grants rewards (economy + commands)
8. Leaderboard and placeholders update in real time
9. All logs written, traceable anytime

Fully automated. You just configure the rewards, YuPay handles the rest.

🎁 Four Reward Layers, Mix and Match

YuPay's reward system is like a Lego box — four trigger modes you can combine freely.

Each layer's commands are fully customizable, support variables like {player}, {amount}, {points}, and can integrate with permission/economy plugins like LuckPerms, CMI, etc.

💡 Adding -n (e.g. /donate 10 -n) makes it a no-reward sponsorship — pure server support, no rewards triggered.

🔑 Redeem Code System: More Than Just a Voucher

YuPay's redeem code module goes far beyond typical "gift codes":

• Free codes: Players enter to claim — great for event giveaways
• Paid activation codes: Players must scan and pay a specified amount before redeeming — suitable for selling item entitlements, redeeming codes from other platforms, etc.
• Economy rewards: Automatically grant Vault currency or PlayerPoints upon redemption
• Custom commands: Each code can bind a set of commands executed on redemption
• Usage limits & expiry: Independent control per code
• Code PAPI: Placeholders directly read any code's status, amount, remaining uses

Create a paid activation code with a single command:

/yp code create --code VIP2026 --amount 50 --economy vault --eco-amount 5000 --commands "lp user {player} parent set vip" --max-uses 100 --expire 30d

💵 Refund System: Bad Debt Terminator

Refunds are no longer a nightmare. YuPay's refund process is complete and reassuring:

• Players request refund: Submit application with reason
• Admin reviews: Approve/deny in an orderly manner
• Forced refund: Direct operation for urgent cases, no waiting for review
• Partial refund: Flexible handling, precise to the cent
• Code refund: Refund money and rollback usage count, status automatically restored
• Refund callback: Interfaces with WeChat/Alipay official refund API, money returns to original payment method
• Complete logs: Who refunded, how much, when, why — all clear

🌐 Thousand Players, Thousand Languages — No Language Fights

A lifesaver for international server operators.

• Comes with Simplified Chinese and English complete translations
• Server owners can add any language file in language.mappings
• Players switch preference with /yp lang <language>, stored in database, persists across sessions
• New players automatically detect client language and match the best translation
• Different players on the same server see different language prompts — truly per-player localization

🔌 Complete PAPI Placeholder List

YuPay provides 40+ built-in PlaceholderAPI placeholders, covering personal, server, leaderboard, and redeem code dimensions. All monetary values keep two decimal places. Full list below:

1. Personal Dimension (requires player context)

💡 Dynamic parameters: <time> is in milliseconds (e.g. 86400000 = 24h), <amount> is monetary threshold (yuan). All monetary placeholders retain two decimals.

2. Server Dimension (no player needed)

3. Leaderboard Dimension (no player needed)

Two formats supported (first recommended):

<rank> ranges 1 ~ 10. If rank doesn't exist, name returns fallback text from language file (default "None"), amount returns 0.00.

4. Redeem Code Dimension

Includes global statistics (no player needed) and specific code attributes (where redeemed and can_redeem require player context).

Global Statistics

Specific Code Attributes — replace <code> with actual code string (auto-uppercase)

💡 _can_redeem checks: code status normal, not expired, uses left, not locked by others, and current player hasn't redeemed it.

Usage Notes

• All monetary placeholders are in yuan, with two decimal places, e.g. 99.50. Integer amounts also show .00.
• Dynamic time parameter <time> always uses milliseconds — 24h = 86400000, 7d = 604800000.
• Code strings in placeholders are auto-uppercased; lowercase input works too.
• Server and leaderboard placeholders do not require a player context; personal and some code placeholders require a player or return empty/default.
• Placeholders work in any plugin that supports PlaceholderAPI (scoreboard, BossBar, DeluxeTags, chat prefix, item lore, etc.).

🧩 Gift for Developers

If you can write plugins, these events will make your secondary development experience fly:

All events support sync. You can intercept before order creation, trigger联动 other systems after payment, sync data on refund — every detail of the sponsorship lifecycle is observable.

🛡️ Security Is Not Just Talk

• Signature verification: WeChat/Alipay callbacks are fully signature-verified against forgery
• Anti-duplicate delivery: Order status check + idempotent handling
• IP whitelist: Callback interface can restrict access to official payment platform IPs only
• TLS/HTTPS: Supports certificate-encrypted communication
• Event monitoring: /yp audit one-click audit, 24h monitoring of which plugins are listening to YuPay's fund events
• Map virtual lock: When a payment QR is placed in the inventory, the player is locked in place, cannot drop/switch items, payment unlocks

⚡ Blazing Fast Startup

The rewritten dependency loading system means YuPay no longer requires cumbersome JVM startup parameters. All dependencies are automatically managed, verification speed increased by 600%, out-of-the-box. Drop it into the plugins folder, start the server, it's ready.

📊 Data at Your Fingertips

/yp history is one of your most-used commands. Order history supports page browsing, click an order ID to copy it with one click — reconciliation efficiency doubled.

/yp top lets you know at any time who is contributing to the server — leaderboard data syncs with placeholders in real time.

/yp total for personal stats, /yp total all for server-wide stats — all available at your fingertips.

🚀 Two-Minute Quick Start Guide

1. Drop YuPay.jar into the plugins/ folder
2. Start the server, wait for config.yml and messages.yml to generate
3. Open config.yml, fill in your WeChat/Alipay parameters
4. Ensure the callback port (default 8080) is open in your server firewall and security group
5. In-game, type /donate 0.01 to test a small payment
6. Confirm callback works and rewards arrive — start business 🎉

🏆 Why Server Owners Are Using YuPay

• ✅ Stable: Production-tested, compatible with Spigot/Paper 1.8 to latest versions
• ✅ Reliable: Direct official API connection, no middlemen, money goes to your account directly
• ✅ Worry-free: From payment to rewards fully automated, you just configure
• ✅ Flexible: Reward logic fully programmable, command aliases freely definable
• ✅ Secure: Signature verification + anti-duplicate + IP whitelist + event monitoring
• ✅ Transparent: Every order, every refund, every code redemption has logs
• ✅ Evolving: Actively maintained, continuously iterated, community-driven

💬 Plugin Discussion Group: 1080918424

For issues, feature requests, or just to chat — welcome. Every improvement of YuPay comes from feedback from server owners.

💛 Support the Author on AiFaDian: https://ifdian.net/item/012b6c1c4a0911f18d1b52540025c377

If YuPay has helped your server, consider buying the author a milk tea ~ Your support is the biggest motivation for the plugin's continued evolution.

Stop struggling with sponsorship management. Leave the professional stuff to YuPay, and focus on running your server well.

📖 YuPay Operation Manual

1. Environment Requirements

🎉 Good news: You no longer need to manually add JVM startup parameters for Java 9+. YuPay's latest version has built-in smart dependency management — out-of-the-box.

2. Installation & Startup

1. Download YuPay.jar, place it in the server's plugins/ directory
2. Start the server, the plugin will automatically generate config.yml, messages.yml, and SQLite database files
3. Edit plugins/YuPay/config.yml, fill in payment channel configuration parameters
4. Depending on your payment method, configure callback URLs in the payment platform backend:
   • WeChat: http(s)://your-domain-or-ip:port/pay/wechat/notify
   • Alipay: http(s)://your-domain-or-ip:port/pay/alipay/notify
5. Ensure the callback port (default 8080) is open in firewall and security group
6. Execute /yupay reload or type reload in console to apply configuration
7. In-game, type /donate 0.01 to test a small payment

3. Configuration Quick Reference

3.1 Core Payment Parameters

3.2 WeChat Pay Parameters

3.3 Alipay Parameters

3.4 Economy System

3.5 QR Code Display

3.6 Callback Server

3.7 Database

4. Complete Reward Configuration Guide

4.1 Base Reward (on-success)

Executed on every successful payment — suitable for "base reward every sponsorship".

commands:
  on-success:
    - "give {player} diamond 1"
    - "effect give {player} minecraft:speed 30 1"

Available variables: {player} (player name), {amount} (amount), {points} (economy points earned)

4.2 Single Milestone (on-single-achieved)

Triggered when a single payment reaches a set amount. Sort amounts from low to high, multiple tiers allowed.

commands:
  on-single-achieved:
    - amount: 50
      commands:
        - "say {player} reached 50 yuan in a single sponsorship!"
        - "give {player} minecraft:gold_block 5"
    - amount: 100
      commands:
        - "give {player} minecraft:diamond_block 3"
        - "lp user {player} parent set vip"

4.3 Total Achievement (on-total-achieved)

Triggered when lifetime total reaches a new height. Each tier triggers only once — anti-duplicate mechanism built-in.

commands:
  on-total-achieved:
    - total: 100
      commands:
        - "lp user {player} parent set vip"
    - total: 1000
      commands:
        - "lp user {player} parent set ultimate"
        - "give {player} minecraft:beacon 1"

4.4 Limited Sprint Reward (on-recent-achieved)

Triggered when cumulative amount within a specified time period (milliseconds) reaches the target. Great for holiday events, weekend leaderboard pushes, etc.

commands:
  on-recent-achieved:
    - time: 86400000    # 24 hours
      total: 200
      commands:
        - "give {player} minecraft:enchanted_golden_apple 5"
    - time: 604800000   # 7 days
      total: 500
      commands:
        - "give {player} minecraft:elytra 1"

4.5 Refund Trigger Commands (on-refund)

Executed after a successful refund — can be used to notify admins, log events.

commands:
  on-refund:
    - "say {player}'s order {order} has been refunded {amount} yuan"

5. Command System

5.1 Player Commands

💡 The -n flag means "no-reward sponsorship" — pure server support, no reward commands or economy items triggered.

5.2 Admin Commands

5.3 Key Permission Nodes

6. Redeem Code System In-Depth

6.1 Code Creation Command Details

Code creation uses named parameters in --param value format, freely combinable:

# Free welfare code (unlimited uses, never expires)
/yp code create --code FREEGIFT --max-uses -1 --economy vault --eco-amount 100 --remark "New player gift"

# Paid activation code (pay 50 yuan to redeem, 100 uses, expires after 30 days)
/yp code create --code PREMIUM --amount 50 --economy vault --eco-amount 5000 --max-uses 100 --expire 30d --commands "lp user {player} parent set vip"

# Command-only code (no economy, no payment)
/yp code create --code WELCOME --commands "give {player} diamond 5; say {player} Welcome back!"

Parameter quick reference:

6.2 Code Status Explanation

6.3 Code PAPI Placeholders

Using code VIP2026 as example:

7. Refund System In-Depth

7.1 Refund Method Comparison

7.2 Refund Approval Workflow

1. Player or admin submits refund request: /yp refund request <order-id> [amount]
2. Admin views pending list: /yp refund pending
3. Approve or reject: /yp refund approve <request-id> / reject
4. Upon approval, actual refund automatically executes; upon rejection, requester is notified

7.3 What Happens After Refund

• Payment platform (WeChat/Alipay) receives refund request, money returns to original payment method
• Plugin updates order refund status (FULL_REFUND / PARTIAL_REFUND)
• If code refund: code usage count -1, status restored to ACTIVE
• Executes commands configured in commands.on-refund
• Triggers RefundCompletedEvent for other plugins to react
• Complete refund logs written to database

8. Multi-Language System

8.1 Adding a Language

Add under language.mappings node in config.yml:

language:
  mappings:
    zh_cn:
      file: "messages.yml"
      aliases: [zh, cn, chinese]
      client-locales: ["zh_cn", "zh_*"]
    en:
      file: "messages_en.yml"
      aliases: [english, eng]
      client-locales: ["en_*"]
    ja:
      file: "messages_ja.yml"
      aliases: [japanese, jp]
      client-locales: ["ja_*"]

Then create plugins/YuPay/messages_ja.yml, translating based on messages.yml. Plugin will automatically fill in missing keys.

8.2 Switching Language

• Players switch manually: /yp lang en (supports aliases, e.g. english)
• First join auto-detects client language and matches best translation
• Language preference stored in database, remembered across sessions

9. Database Selection Guide

10. Troubleshooting Common Issues

Callback server fails to start

• Check if port is occupied
• Confirm firewall/security group has opened the port
• Check console error logs

Payment successful but rewards not received

• Check order status in database — should be SUCCESS
• Confirm economy.enabled and commands.enabled are both true
• Check console for economy plugin load errors

Map QR code not showing

• Confirm ProtocolLib matching server version is installed
• Check if qrcode.default-output-mode is set to map
• If ProtocolLib missing, mode auto-falls back to link

WeChat Pay says public key file not found

• Check existence of plugins/YuPay/pems/ directory
• Confirm wechat.public-key-path is correct
• Go to WeChat Merchant Platform → API Security → API Certificates → download platform certificate

Configuration lost after plugin upgrade

• YuPay has built-in smart config upgrader — automatically backs up old file (.bak suffix) and merges new keys
• Manual backup before upgrade for extra peace of mind

11. Database Tables

12. Uninstallation Steps

1. Execute /yp reload (ensure in-memory config is flushed)
2. Stop the server
3. Delete plugins/YuPay.jar
4. For complete removal, delete plugins/YuPay folder (including database)

💬 Plugin Discussion Group: 1080918424 Don't struggle alone — bring your logs and config screenshots to the group, the author and helpful server owners are there.

💛 Support the Author on AiFaDian: https://ifdian.net/item/012b6c1c4a0911f18d1b52540025c377

If YuPay has helped your server, consider buying the author a milk tea ~ Your support is the biggest motivation for the plugin's continued evolution.