I've written a standard express server with Nodejs and Winston logger. For some reason, the log output is written both to console and the designated log file.
Every line in the code:
winston.log('info', '**************************************');
Is written to both console and log file.
Why is this happening?
He is my code:
var express = require('express');
var bodyParser = require('body-parser');
var mysql = require ('mysql');
var winston = require('winston');
var app = express();
//Init Winston logger, max file size 5MB with 10 file retention
winston.add(winston.transports.File, { filename: './logs/eclipse_server.log', level: 'info',handleExceptions: true,
maxsize: 5242880,maxFiles: 10});
winston.log('info', '**************************************');
winston.log('info', 'Eclipse web server - start up process');
winston.log('info', 'Express server mode initialized');
winston.log('info', 'Initialize database connection');
var connection = mysql.createConnection({
host: '127.0.0.1',
user: 'root',
password: '12345678',
database: 'project_eclipse',
port: 3306 });
winston.log('info', 'Database connection initialized');
winston.log('info', 'Database connection attempted');
connection.connect(function(err){
if(!err) {
winston.log('info', 'Database connection success - connected');
} else {
winston.log('error', 'Database connection - failed');
winston.log('error', err);
}
});
// instruct the app to use the `bodyParser()` middleware for all routes
winston.log('info', 'using bodyParser()');
app.use(bodyParser());
winston.log('info', 'using bodyParser.text()');
app.use(bodyParser.text());
winston.log('info', 'initialize HTML directory');
app.use(express.static(__dirname + '/public'));
winston.log('info', 'initialized HTML directory');
app.post('/', function(request, response){
winston.log('info', 'In game POST login request recieved');
var usr = request.body.usr;
var pass = request.body.pass;
//var client_ip = req.header('x-forwarded-for') || req.connection.remoteAddress;
winston.log('info', 'login request recieved from '+usr);
connection.query('SELECT * FROM eclipse_users WHERE username=? AND password = md5(?)', [ usr, pass ], function(err, rows, fields) {
if (!err)
{
var n_rows = rows.length;
if(n_rows==1)
{
//user exists
winston.log('info', 'user exists - response will be send');
response.json({msg:'user exists'});
winston.log('info', 'user exists - response sent');
}
else
{
//user not found
winston.log('info', 'user not found - response will be send');
response.json({msg:'user does not exist'});
winston.log('info', 'user not found - response sent');
}
}
else
//SQL query error
{
winston.log('error', 'Error while performing select query');
winston.log('error', err);
connection.end();}
});
});
app.post('/weblogin', function(request, response){
winston.log('info', 'web POST login request recieved');
var usr = request.body.usr;
var pass = request.body.password;
//var client_ip = req.header('x-forwarded-for') || req.connection.remoteAddress;
winston.log('info', 'login request recieved from '+usr);
connection.query('SELECT * FROM eclipse_users WHERE username=? AND password = md5(?)', [ usr, pass ], function(err, rows, fields) {
if (!err)
{
var n_rows = rows.length;
if(n_rows==1)
{
//user exists
winston.log('info', 'user exists - response will be send');
response.send('1');
winston.log('info', 'user exists - response sent');
}
else{
//user does not exist
winston.log('info', 'user not found - response will be send');
response.send('0');
winston.log('info', 'user not found - response sent');
}
}
else
//SQL query error
{
winston.log('error', 'Error while performing select query');
winston.log('error', err);
connection.end();}
});
});
app.post('/myaction', function(request, response) {
winston.log('info', 'web POST register user request recieved');
var usr = request.body.username;
var pass = request.body.pass;
var uemail = request.body.mail;
winston.log('info', 'preparing sql query');
var check = connection.query('INSERT INTO eclipse_users (username, password,email) VALUES (?, md5(?),?)', [ usr, pass,uemail ], function(err,result) {
if (!err)
{
winston.log('info', 'new user registered');
response.send('User registered');}
else
{
winston.log('error', 'err');
response.send('ERROR');
}
});
});
winston.log('info', 'binding port 80 on IP 172.31.16.218');
app.listen(80,"172.31.16.218");
winston.log('info', 'server running at http://172.31.16.218:80');
Winston adds the Console transport by default. If you don't want log to the console you have two options.
Remove it:
winston.remove(winston.transports.Console);
Or instantiate your own logger:
var logger = new (winston.Logger)({
transports: [
new (winston.transports.File)({ filename: 'somefile.log' })
]
});
And use your new logger:
logger.log('info', "this won't be printed to the console");
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