View source for Error Logging in Node

[[Category:Node.js]]

== Installation ==
 npm i winston
== Setup ==
 const winston = require('winston');
 ...
 winston.add(winston.transports.File, {filename:'logfile.log'})
== Usage == 
 winston.log('error', err.message);
or
 winston.error(err.message, error);
 // error
 // warn
 // info 
 // verbose
 // debug
 // silly
== Logging to MongoDb ==
 npm i winston-mongodb@3.0.0

 require('winston-mongodb');

 winston.add(winston.transports.MongoDB, { db: 'mongodb://localhost/somedb' });
To set only the errors to go to db 
 winston.add(winston.transports.MongoDB, { db: 'mongodb://localhost/somedb', level:'error' });
if we give the parameter as info error, warn and info will be logged.