commonjs-logger
Logger with support for json and key value based logs.
Config
| Name | Description |
|---|---|
| logLevel | Controls log level of the service['error', 'warn', 'info', 'http', 'verbose', 'debug', 'silly'] |
| logStyle | Controls log output style['json', 'cli'] |
| appName | Application name shown in logs |
| moduleName | Action name or file name shown in logs |
Usage
import { getLogger, Config } from 'commonjs-logger';
const config: Config = {
appName: 'test-app-name',
moduleName: 'logger-config-test',
logLevel: 'info',
logStyle: 'cli',
};
const logger = getLogger(config);
logger.info('This is a sample info log message');
logger.debug('This is a sample debug log message');
logger.error('This is a sample error log message');
// Object interpolation using object.toString() - does not show object contents
logger.debug(`'This is a sample interpolated message ${someObject}`);
// Object interpolation using %o - does show object contents
logger.debug(`'This is a sample interpolated message: %o', someObject);
// Object interpolation using %O - does show object contents
logger.debug(`'This is a sample interpolated message: %O', someObject);
// Object interpolation using %s
logger.debug(`'This is a sample interpolated message: %s', 'my string');
// Include object into json formatted payload
logger.debug('Some message', someObject);