CloudWatch Logs SDK.

var params = {
  logGroupName: 'STRING_VALUE', /* required */
  logStreamName: 'STRING_VALUE' /* required */
};
cloudwatchlogs.createLogStream(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});
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