@yambwa/pretty-logger/dist/types.d.ts

A lightweight, extensible logger with log levels, pretty and JSON output, context support, and pluggable transports for Node.js and TypeScript projects.

/**
 * Log levels supported by the logger
 */
export declare enum LogLevel {
    Trace = "trace",
    Debug = "debug",
    Info = "info",
    Warn = "warn",
    Error = "error",
    Fatal = "fatal"
}
/**
 * Numeric representation of log levels for comparison
 */
export declare const logLevelRanks: Record<LogLevel, number>;
/**
 * Raw log entry object passed to transports
 */
export interface LogEntry {
    level: LogLevel;
    message: string;
    timestamp: Date;
    context?: string;
    meta?: Record<string, any>;
}
/**
 * A transport function that receives a log entry and formatted string
 */
export type Transport = (entry: LogEntry, formatted: string) => void | Promise<void>;
/**
 * Logger configuration options
 */
export interface LoggerConfig {
    level?: LogLevel;
    mode?: 'pretty' | 'json';
    context?: string;
    transports?: Transport[];
}
/**
 * Logger interface
 */
export interface ILogger {
    trace(message: string, meta?: Record<string, any>): void;
    debug(message: string, meta?: Record<string, any>): void;
    info(message: string, meta?: Record<string, any>): void;
    warn(message: string, meta?: Record<string, any>): void;
    error(message: string, meta?: Record<string, any>): void;
    fatal(message: string, meta?: Record<string, any>): void;
    setLevel(level: LogLevel): void;
    withContext(context: string): ILogger;
}