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Unity TMA - Bug Fixes and Improvements

🪙 Coin Synchronization Fix (v2.1)

Problem Description

The coin synchronization system between backend and frontend was not working properly. Players' coins were not syncing with the backend server, causing inconsistencies between local and server data.

Issues Identified

  1. Complex Profile Creation Flow: The system was trying to create profiles just to sync coins
  2. Untagged Error Logs: Error messages were not clearly identified, making debugging difficult
  3. Missing Error Handling: Null reference exceptions when UI components weren't assigned
  4. Inefficient API Calls: Unnecessary profile creation calls for simple coin fetching

Solutions Implemented

1. Simplified Coin Sync Flow

Before:

Create Profile → If exists, get existing profile → Sync coins

After:

Direct GetCoins API call → Parse result → Sync to frontend

Files Modified:

  • Assets/Script/MoneyGoldCount.cs
    • Simplified WaitForProfileCreation() method
    • Added direct GetCoins() call
    • Created SyncWithBackendCoins(string coinsResult) overload

2. Enhanced Error Logging

Before:

{"ok":false,"error_code":401,"description":"Unauthorized"}

After:

[GET_COINS] Error: {"ok":false,"error_code":401,"description":"Unauthorized"}
[CREATE_PROFILE] Error: {"detail":"Profile is exist"}
[TELEGRAM_REQUEST] Response: {"ok":false,"error_code":401,"description":"Unauthorized"}

Files Modified:

  • Assets/Script/BackEnd/MethodsAPIScript.cs
    • Added [GET_COINS], [CREATE_PROFILE], [UPDATE_COINS] tags
  • Assets/Script/TelegramRequestScript.cs
    • Added [TELEGRAM_REQUEST] tag

3. Improved Error Handling

Before:

coinsText.GetComponent<Text>().text = _currentCoins.ToString();

After:

if (coinsText != null)
{
    coinsText.GetComponent<Text>().text = _currentCoins.ToString();
}

Files Modified:

  • Assets/Script/BackEnd/MethodsAPIScript.cs
    • Added null checks for UI components

4. Fixed API Endpoint

Before:

http://45.9.75.242:8080//profile/create  (double slash)

After:

https://api.skapa.world/profile/create

Files Modified:

  • Assets/Script/BackEnd/MethodsAPIScript.cs
    • Updated BaseURL to new server endpoint

Technical Details

Coin Sync Process

  1. Game Start: MoneyGoldCount.Start() loads local coins from PlayerPrefs
  2. Backend Check: WaitForProfileCreation() waits 2 seconds for initialization
  3. Direct Fetch: Calls MethodsAPIScript.GetCoins() directly
  4. Parse Result: Extracts coin value from JSON response
  5. Sync Frontend: Updates TotalCoins and PlayerPrefs
  6. UI Update: Updates coin display if UI component is assigned

Error Handling Flow

  1. Tagged Logs: All API calls now have identifying tags
  2. Graceful Fallback: If backend fails, uses local PlayerPrefs data
  3. Null Safety: UI components are checked before access
  4. Clear Messages: Error messages indicate exactly what failed

Files Changed

Core Files

  • Assets/Script/MoneyGoldCount.cs

    • Simplified coin sync logic
    • Added direct backend fetching
    • Enhanced error handling

  • Assets/Script/BackEnd/MethodsAPIScript.cs

    • Added error logging tags
    • Fixed null reference issues
    • Updated API endpoint

  • Assets/Script/BackEnd/TelegramManager.cs

    • Cleaned up excessive logging
    • Simplified initialization

  • Assets/Script/TelegramRequestScript.cs

    • Added error logging tag

Testing Results

Before Fix

  • ❌ Coins not syncing with backend
  • ❌ Untagged error messages
  • ❌ Null reference exceptions
  • ❌ Complex, unreliable flow

After Fix

  • ✅ Direct backend coin fetching
  • ✅ Tagged error messages for debugging
  • ✅ Graceful error handling
  • ✅ Simple, reliable coin sync
  • ✅ Fallback to local data when needed

Setup Instructions

For Developers

  1. Assign UI Component: In Unity Inspector, assign the coins text UI to MethodsAPIScript.coinsText
  2. Test Backend: Ensure https://api.skapa.world is accessible
  3. Check Logs: Look for [GET_COINS] tagged messages in console
  4. Verify Sync: Confirm coins update when backend data changes

For Players

  • No additional setup required
  • Coins will automatically sync with backend when available
  • Game works offline with local coin data as fallback

Future Improvements

Potential Enhancements

  1. Retry Logic: Add automatic retry for failed API calls
  2. Caching: Implement local caching for better offline experience
  3. Real-time Updates: WebSocket connection for instant coin updates
  4. Conflict Resolution: Handle cases where local and backend data differ

Monitoring

  • Monitor [GET_COINS] logs for API call success rates
  • Track 🪙 Synced with backend messages for sync frequency
  • Watch for 🪙 Server offline messages for connectivity issues

Fix Version: v2.1
Date: December 2024
Status: ✅ Complete and Tested
Impact: High - Core functionality restored