traceperf/dist/esm/formatters/json.d.ts

High-performance function execution tracking and monitoring for Node.js

import { IFormatter, LogLevel, LogMeta } from '../types';
/**
 * JSON formatter for structured output
 * Formats log entries as JSON objects
 */
export declare class JsonFormatter implements IFormatter {
    /**
     * Format a log entry as JSON
     *
     * @param level - The log level
     * @param message - The log message
     * @param args - Additional arguments
     * @param meta - Metadata for the log entry
     * @returns The formatted log entry as a JSON string
     */
    format(level: LogLevel, message: string | object, args: any[], meta: LogMeta): string;
    /**
     * Format a message for JSON output
     *
     * @param message - The message to format
     * @returns The formatted message
     */
    private formatMessage;
    /**
     * Format arguments for JSON output
     *
     * @param args - The arguments to format
     * @returns The formatted arguments
     */
    private formatArgs;
    /**
     * Sanitize an object for JSON serialization
     *
     * @param obj - The object to sanitize
     * @returns A sanitized version of the object
     */
    private sanitizeObject;
    /**
     * Extract additional metadata from the log meta object
     *
     * @param meta - The log metadata
     * @returns Additional metadata as an object
     */
    private extractExtraMeta;
}