book-file

book-file is a file transport for the book logging framework. It will write out the json contents of the log entry.

installation

npm install book-file

use

book-file is used like all other book middleware. Just add it to your logger object. I recommend you create a file log.js for your project where you setup the logger however you desire across your entire project.

// some logger you have created
var log = require('book').default();
 
// adds the file logging middleware to the logger
log.use(require('book-file')({
    filename: '/path/to/file.log'
});
 
// log stuffs, it will go to the log file
log.info('hello world!');

file.log will contain something along the lines of:

{ "level": 3, "timestamp": 12345, "message": "hello world!" }