[Home](./index.md) > [@snowplow/node-tracker](./node-tracker.md) > [Logger](./node-tracker.logger.md) ## Logger interface Signature: ```typescript interface Logger ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [debug](./node-tracker.logger.debug.md) | (message: string, ...extraParams: unknown\[\]) => void | | | [error](./node-tracker.logger.error.md) | (message: string, error?: unknown, ...extraParams: unknown\[\]) => void | | | [info](./node-tracker.logger.info.md) | (message: string, ...extraParams: unknown\[\]) => void | | | [setLogLevel](./node-tracker.logger.setloglevel.md) | (level: LOG\_LEVEL) => void | | | [warn](./node-tracker.logger.warn.md) | (message: string, error?: unknown, ...extraParams: unknown\[\]) => void | |