CoinMarketCap Universal MCP Server

/** * Formats error messages for consistent output * @param error The error object * @returns Formatted error message string */ export function formatErrorMessage(error: any): string { // If it's an Axios error with a response if (error.response) { const { status, data } = error.response; // Format API errors if (status === 401) { return `API Error (${status}): API key missing or invalid`; } else if (status === 429) { return `API Error (${status}): Rate limit exceeded`; } else if (status >= 500) { return `API Error (${status}): Server error`; } // Return error message from API if available const errorMessage = data.status?.error_message || JSON.stringify(data); return `API Error (${status}): ${errorMessage}`; } // For connection errors if (error.code === 'ECONNREFUSED') { return 'Connection refused. API server may be down.'; } // For request timeout if (error.code === 'ETIMEDOUT') { return 'Request timed out. Please try again later.'; } // For network errors if (error.message && error.message.includes('Network Error')) { return 'Network error. Please check your internet connection.'; } // Default error message return error.message || 'An unknown error occurred'; } /** * Logs errors with detailed information for debugging * @param source Source of the error * @param error The error object */ export function logError(source: string, error: any): void { console.error(`[ERROR] ${source}:`, error.message); // Log additional details for API errors if (error.response) { console.error('Status:', error.response.status); console.error('Headers:', error.response.headers); console.error('Data:', JSON.stringify(error.response.data, null, 2)); } // Log request details if available if (error.config) { console.error('Request URL:', error.config.url); console.error('Request Method:', error.config.method); // Log parameters but mask sensitive data if (error.config.params) { console.error('Request Params:', error.config.params); } // Don't log full headers as they may contain API keys if (error.config.headers) { const safeHeaders = { ...error.config.headers }; if (safeHeaders['X-CMC_PRO_API_KEY']) { safeHeaders['X-CMC_PRO_API_KEY'] = '****'; } console.error('Request Headers:', safeHeaders); } } }