Error Handling

{
  "error": {
    "code": 400,
    "type": "INVALID_PARAMETER",
    "message": "Invalid symbol",
    "details": "Symbol 'INVALID-PAIR' is not supported",
    "field": "symbol",
    "timestamp": 1698765432000,
    "requestId": "req_abc123456"
  }
}

{
  "error": {
    "code": 401,
    "type": "INVALID_API_KEY",
    "message": "Invalid API key",
    "details": "The provided API key is not valid or has been revoked"
  }
}

{
  "error": {
    "code": 401,
    "type": "INVALID_SIGNATURE",
    "message": "Invalid signature",
    "details": "The request signature does not match the expected value"
  }
}

{
  "error": {
    "code": 422,
    "type": "INSUFFICIENT_BALANCE",
    "message": "Insufficient balance",
    "details": "Available balance: 1000.00 USDC, Required: 2000.00 USDC",
    "field": "quantity"
  }
}

{
  "error": {
    "code": 404,
    "type": "ORDER_NOT_FOUND",
    "message": "Order not found",
    "details": "Order with ID 'ord_1234567890' does not exist or has been canceled",
    "field": "orderId"
  }
}

{
  "success": false,
  "error": "Invalid Lighter private key format. Expected 64 or 80 hex characters.",
  "code": "CREDENTIAL_ERROR",
  "timestamp": 1234567890
}

{
  "success": false,
  "error": "No routing data available for DOGE. The symbol may not be supported.",
  "code": "ROUTING_ERROR",
  "timestamp": 1234567890
}

{
  "success": false,
  "error": "Order execution failed: Insufficient balance",
  "code": "EXECUTION_ERROR",
  "details": "API Error 400: Insufficient USDC balance",
  "timestamp": 1234567890
}

{
  "error": {
    "code": 429,
    "type": "RATE_LIMIT_EXCEEDED",
    "message": "Rate limit exceeded",
    "details": "Too many requests. Limit: 60 requests per minute",
    "retryAfter": 30
  }
}

async function apiCallWithRetry(apiCall, maxRetries = 3) {
  for (let attempt = 1; attempt <= maxRetries; attempt++) {
    try {
      return await apiCall();
    } catch (error) {
      if (error.status === 429) {
        // Rate limit - wait and retry
        const retryAfter = error.retryAfter || Math.pow(2, attempt);
        await sleep(retryAfter * 1000);
        continue;
      }
      
      if (error.status >= 500 && attempt < maxRetries) {
        // Server error - exponential backoff
        await sleep(Math.pow(2, attempt) * 1000);
        continue;
      }
      
      // Don't retry client errors (4xx)
      throw error;
    }
  }
}

async function placeOrder(orderData) {
  try {
    const response = await dexaggClient.placeOrder(orderData);
    return response;
  } catch (error) {
    switch (error.type) {
      case 'INSUFFICIENT_BALANCE':
        showError('Insufficient balance. Please deposit more funds.');
        break;
        
      case 'MIN_ORDER_SIZE':
        const minSize = extractMinSize(error.details);
        return placeOrder({ ...orderData, quantity: minSize });
        
      case 'RATE_LIMIT_EXCEEDED':
        await sleep(error.retryAfter * 1000);
        return placeOrder(orderData);
        
      default:
        console.error('Unexpected error:', error);
        showError('An unexpected error occurred. Please try again.');
    }
  }
}