How to set the default logger in TypeScript

Set the DefaultLogger to one of the following log levels: 'TRACE' | 'DEBUG' | 'INFO' | 'WARN' | 'ERROR'.

The following is an example of setting the DefaultLogger to 'Debug'.

Runtime.install({
  logger: new DefaultLogger('DEBUG'),
  telemetryOptions: {
    tracingFilter: 'temporal_sdk_core=DEBUG',
    logging: { forward: { level: 'DEBUG' } },
  },
});

The following code sets the DefaultLogger to 'Debug' and creates a Worker that can execute Activities or Workflows.

import { Worker, Runtime, DefaultLogger } from '@temporalio/worker';
import * as activities from './activities';
async function main() {
  const argv = arg({
    '--debug': Boolean,
  });
  /* Setting the log level to DEBUG. */
  if (argv['--debug']) {
    Runtime.install({
      logger: new DefaultLogger('DEBUG'),
      telemetryOptions: {
        tracingFilter: 'temporal_sdk_core=DEBUG',
        logging: { forward: { level: 'DEBUG' } },
      },
    });
  }
  const worker = await Worker.create({
    activities,
    workflowsPath: require.resolve('./workflows'),
    taskQueue: 'test',
  });
  await worker.run();
  console.log('Worker gracefully shutdown');
}