js-mvc-app/dist/templates/utils/logger.js

A CLI tool to scaffold complete Node.js MVC projects with TypeScript, just like Laravel

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getLogger = getLogger;
function getLogger() {
    return `import winston from 'winston';

// Define log levels
const levels = {
  error: 0,
  warn: 1,
  info: 2,
  http: 3,
  debug: 4
};

// Define colors for each level
const colors = {
  error: 'red',
  warn: 'yellow',
  info: 'green',
  http: 'magenta',
  debug: 'white'
};

// Add colors to winston
winston.addColors(colors);

// Define log format
const format = winston.format.combine(
  winston.format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss:ms' }),
  winston.format.colorize({ all: true }),
  winston.format.printf(
    (info) => \`\${info.timestamp} \${info.level}: \${info.message}\`
  )
);

// Define transports
const transports = [
  // Console transport
  new winston.transports.Console({
    format: winston.format.combine(
      winston.format.colorize(),
      winston.format.simple()
    )
  }),
  
  // File transport for errors
  new winston.transports.File({
    filename: 'logs/error.log',
    level: 'error',
    format: winston.format.combine(
      winston.format.timestamp(),
      winston.format.json()
    )
  }),
  
  // File transport for all logs
  new winston.transports.File({
    filename: 'logs/combined.log',
    format: winston.format.combine(
      winston.format.timestamp(),
      winston.format.json()
    )
  })
];

// Create logger
export const logger = winston.createLogger({
  level: process.env.LOG_LEVEL || 'info',
  levels,
  format,
  transports,
  exceptionHandlers: [
    new winston.transports.File({ filename: 'logs/exceptions.log' })
  ],
  rejectionHandlers: [
    new winston.transports.File({ filename: 'logs/rejections.log' })
  ]
});

// If not in production, log to console as well
if (process.env.NODE_ENV !== 'production') {
  logger.add(new winston.transports.Console({
    format: winston.format.simple()
  }));
}

// Stream for morgan HTTP logging
export const stream = {
  write: (message: string) => {
    logger.http(message.trim());
  }
};
`;
}
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