/**
* Response logger for Metabase MCP server
* Saves full JSON responses for inspection and debugging
*/
import * as fs from 'fs';
import * as path from 'path';
import { fileURLToPath } from 'url';
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const RESPONSE_LOG_PATH = path.join(__dirname, '..', '.last-response.json');
interface LoggedResponse {
timestamp: string;
tool: string;
request: any;
response: any;
}
/**
* Log full response to .last-response.json
* This allows inspection of the complete JSON data while returning concise markdown
*/
export async function logResponse(
toolName: string,
requestParams: any,
responseData: any
): Promise<void> {
try {
const logEntry: LoggedResponse = {
timestamp: new Date().toISOString(),
tool: toolName,
request: requestParams || {},
response: responseData
};
const jsonData = JSON.stringify(logEntry, null, 2);
// Write asynchronously but don't await to avoid blocking the response
fs.writeFile(RESPONSE_LOG_PATH, jsonData, 'utf8', (err) => {
if (err) {
console.error('Failed to write response log:', err);
}
});
} catch (error) {
// Log error but don't throw - response logging should never block the main operation
console.error('Error in logResponse:', error);
}
}
