Lawgs

Nodejs logging to CloudWatch Logs made easy

Features

• Creates Log Groups automatically
• Creates Log Streams automatically
• Periodic upload
• Automatic log batching
• JSON logging support
• logger instances are shared across modules

Get it

npm install lawgs

How to use it

The only required configurations are the AWS configurations.

var lawgs = require('./index');
 
lawgs.config({
    aws: {
        accessKeyId: '********', /* Optional if credentials are set in ~/.aws/credentials */
        secretAccessKey: '******', /* Optional */
        region: 'us-east-1' /* Required */
    }
});

If you are using roles, you will need the following roles:

• logs:DescribeLogGroups
• logs:DescribeLogStreams
• logs:CreateLogGroup
• logs:CreateLogStream
• logs:PutLogEvents

Simply create your logger and you are ready to go.

var logger  = lawgs.getOrCreate('SuperbowlLogs'); /* LogGroup */
logger.log('touchdown', { team: 'Patriots', weight: 7 });

Example

See example.js for a full working example.

Running the example, you get the following output:

Disposed subscription
Resubscribed
SuperbowlLogs >> uploadQueuedLogs triggered with  2  logs
Checking if log group exists: SuperbowlLogs
Creating log group: SuperbowlLogs
Checking if log stream exists: error
Checking if log stream exists: touchdown
Creating log stream: error
Creating log stream: touchdown
Uploading logs
Uploading logs
Logs uploaded
Logs uploaded

Roadmap

• S3 logs archiving

Contributing

Feel free to open issues and open pull requests.

Related projects

Lambdaws (AWS Lambda Wrapper)

Superbowl Notifier (Used Lawgs to log high-volume tweets)