Not working Express

[karthicguru]

Hi,

I'm using winston, winston-express and winston-rollbar modules for error logging.
Currently the logging is not working for me..

var winston = require('winston'),
expressWinston = require('express-winston'),
logDir = 'log',
errorLogger,
requestlogger;
require('winston-rollbar').Rollbar;

var options = {'rollbarAccessToken':'7d38e90d23c44eb2b8dd1ca6a0cd67d8',endpoint: "https://api.rollbar.com/api/1/"}
winston.add(winston.transports.Rollbar, options);

errorLogger = new winston.Logger({
transports: [
new winston.transports.Rollbar(options)
],
exitOnError: false
});
requestlogger = new winston.Logger({
transports: [
new winston.transports.Rollbar(options)
],
exceptionHandlers: [
new winston.transports.Rollbar(options)
]
exitOnError: false
});

exports.winstonExpressRequestLog = expressWinston.logger({
winstonInstance: requestlogger,
msg: "HTTP {{req.method}} {{req.url}}",
meta: true,
colorStatus: true,
});

thanks in advance..