Logger Implementation Using Winston , Morgan And Winston-daily-rotate-file

I am trying to implement a logger in node js which will create a new log file every day on a custom format for logs for this i have used three packages winston morgan winston-d

Solution 1:

for winston i'm using timestamp(), like this it will automatically add timestamp() property to the object

const {transports, createLogger, format} = require('winston');
const logger = createLogger({
        format: format.combine(
            format.timestamp(),
            format.json()
        ),

Also to check if it creates file you can mock date, to say 2019-01-01 and check is it create file 2019-01-01.log than move date to 2019-01-02 and log something else. Winston will create new folder and gzip archive and you can check is file exists and can be unzipped and contains information

Try to read winston's documentation. Basically i would say that you may need to use

format.timestamp()
format.json()
colorize()

dailyRotate with zippedArchive:true

If morgan doesn't suits your needs you can try to log directly in

app.use((req, res, next) => { 
    logger.silly({ message:'start', req,res}); 

    returnnext().then(r=>logger.silly({ message:'end', req,res}; return r;);
}