Backend-POS/Middleware/error.js

const winston = require('winston');
const { createLogger, format, transports } = require('winston');

const logger = winston.createLogger({
    format: format.combine(
        format.timestamp({
            format: 'YYYY-MM-DD HH:mm:ss',
        }),
        format.printf((info) =>
            JSON.stringify({
                t: info.timestamp,
                l: info.level,
                m: info.message,
                s: info.splat !== undefined ? `${info.splat}` : '',
            }) + ','
        )
    ),
    transports: [
        new winston.transports.Console(),
        new winston.transports.File({ filename: 'global.log' })
    ]
})

const errorHandler = (err, req, res, next) => {
    console.log("ERROR NAME", err);
    logger.log({
        level: 'info',
        message: err.message
    });
    res.status(err.statusCode || 500).json({
        success: false,
        description: err.message || "Server Error",
    })
}

module.exports = errorHandler