Winston Logger and winston mongodb

i am not getting any log on node terminal colorize and prettyPrint also not working.

var winston = require(“winston”);

const { combine, timestamp, label, prettyPrint, colorize } = winston.format;

require(“winston-mongodb”);

require(“express-async-errors”);

module.exports = function () {

** winston.exceptions.handle(**

** new winston.transports.Console({**

** format: combine(prettyPrint(), colorize()),**

** }),**

** new winston.transports.File({**

** filename: “uncaughtExceptions.log”,**

** format: winston.format.json({ space: 1 }),**

** })**

** );**

** process.on(“unhandledRejection”, (ex) => {**

** throw ex;**

** });**

** // This is the File Transport creats a log file in vscode**

** winston.add(**

** new winston.transports.File({**

** filename: “logfile.log”,**

** format: winston.format.json({ space: 1 }),**

** })**

** );**

** //Mongodb transport**

** winston.add(**

** new winston.transports.MongoDB({**

** options: { useUnifiedTopology: true },**

** db: “mongodb://localhost/vidly”,**

** level: “info”,**

** collection: “log-errors”,**

** })**

** );**

};