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node.jsloggingwinston

WinstonJS integrate timestamp into log file name for FileTransport

I am using winstonjs 3.0.0 for generating log files, I am currently using File transport for generating log files.

const file = new winston.trasnports.File({
...
filename: 'xxx.log',
maxSize: 1024
...
})

Using the code below, I get log files with names like 'xxx.log', 'xxx1.log'. I want to get file name with the date information when the file is created: 'YYYY-MM-DD-xxx.log'. I considered 'winston-daily-rotate-file', but I do not want the log rotate within time.

Any thoughts?

Solution

  • Append date at the beginning of the filename like this:

    let mydate = new Date();
let newFilename = mydate.getFullYear() + "-" + mydate.getMonth() + "-" + mydate.getDate() + "-" + "xxx.log";
const file = new winston.trasnports.File({
...
filename: newFilename,
maxSize: 1024
...
})