CODEWITHSUNDEEP
node.jsexpresswinstonmorgan
Soham Lawar
Soham Lawar

Reputation: 1265

Winston/Node.js how to add a Transport only for a certain routes?

Let us say I have the following API's and their respective routes as following -

1) /api/v1/teachers - For CRUD operation of teachers

2) /api/v1/students - For CRUD operation of students

Currently, I am storing logs of both the API requests in combined.log file. I want to store logs of CRUD operations of teachers in teachers.log file and logs for CRUD operations of students in students.log file.

I have referred the following question in which the author wants to store certain logs based on certain environment.

Winston/Node.js how add a Transport only for certain environment?

const winston = require('winston');
const transports = [
    new winston.transports.Console({
        level    : 'info',
        colorize : true
    }),
    new winston.transports.File({
        level    : 'info',
        filename : './logs/logs.log'
    })
];

if (process.env.NODE_ENV === 'production') {
    const Mail = require('winston-mail').Mail;

    transports.push(new Mail({
        to       : '[email protected]',
        from     : '[email protected]',
        subject  : 'Errors occurred',
        level    : 'error',
        host     : 'smtp.xxxxx.xx',
        username : '[email protected]', 
        password : 'xxxxx',
        port     : 1234
    }));
}
const logger = new winston.Logger({
    transports
});

But since I am not able to access the request object itself in winston.js so I can not apply a condition-based on routes to store logs of different routes in a different file.

Upvotes: 1

Views: 1072

Answers (1)

Alexandru Olaru
Alexandru Olaru

Reputation: 7112

You can create your 2 transports and use express-winston to choose the specified transport before your router.

var router = require('./teachers-router');

app.use(expressWinston.logger({
  transports: [
    new winston.transports.teachers, // you will need to create this one by your own
  ],
}));
app.use(router);

Upvotes: 1

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