rtp-logger

Thin wrapper around winston for use in Registered Traveller Programme node.js applications.

Usage

To use the logger simply add rtp-logger to your dependencies in the package.json and then require it in your main javascript file.

The default are as follows: -

• Console transport logging to stdout and stderr
• Log level = debug
• Include timestamps on log entries

  logger.info('message');

To log objects, simply pass an additional parameter to the logging function. This will be Stringified using the util.inspect module

  logger.error('message', {'key': 'value});

Configuration

To configure the logger further you can use the setup() function, passing an object. Below is an example of the options that can be used: -

{
    loglevel: 'info',
    appName: 'MY-APP', // will appear as [MY-APP] in log entries
    transports: {
        console: {
            // any valid winston config options when creating a console transport
            timestamp: false,
            debugStdout: false
        }
    }
}

Run tests

The unit tests are written in mocha and can be run using npm.

npm test

You can also run the tests using grunt. Before running the unit tests it will perform a run jshint and jscs. From the project root, run the following: -

grunt dev

If you would like to watch all javascript files and automatically re-run jshint, jscs and mocha you can use the following: -

grunt watch

File transport

File logging is not currently a requirement as all logs file are created from stdout and stderr and will be for the foreseeable future. However, the code to handle configuration of a file transport was written and is available in the file-transport branch. Should this be required at a later date, it could be merged into the master branch and used.

To configure the logger with a file transport you can use the setup() function, passing an object. Below is an example of the options that can be used: -

{
    logLocation: '/log/test.log'
    transports: {
        file: {
            // any valid winston config options when creating a file transport
            filename: 'some-log-file.log', // this would override logLocation
            timestamp: false,
            maxsize: 128,
            maxFiles: 1
        }
    }
}

The existence of logLocation or transports.file in the config will trigger the addition of a file transport to the logger.

If only logLocation is present then the default config for a file transport will be used, this is as defined here.

{
    filename: // logLocation or 'app.log'
    timestamp: true,
    maxsize: 10240,
    maxFiles: 3
}

The Registered Traveller Programme uses BrowserStack for mobile and desktop testing https://www.browserstack.com/