> For the complete documentation index, see [llms.txt](https://bus.node-ts.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bus.node-ts.com/guide/loggers/custom-loggers.md).

# Custom loggers

To use your own logger with **@node-ts/bus**, create an adapter class by implementing the **Logger** interface. In this example [winston](https://www.npmjs.com/package/winston) is being used

```typescript
import { Logger } from '@node-ts/bus-core'
import winston from 'winston'

export class WinstonLogger implements Logger {

  private winstonLogger: winston.Logger

  constructor (
    name: string // This is the name of the class the logger will be injected into
  ) {
    this.winstonLogger = winston.createLogger({
      format: winston.format.json(),
      defaultMeta: { name }
    })
  }

  debug (message: string, meta?: object): void {
    this.winstonLogger.debug(message, meta)
  }

  trace (message: string, meta?: object): void {
    this.winstonLogger.verbose(message, meta)
  }

  info (message: string, meta?: object): void {
    this.winstonLogger.info(message, meta)
  }

  warn (message: string, meta?: object): void {
    this.winstonLogger.warn(message, meta)
  }

  error (message: string, meta?: object): void {
    this.winstonLogger.error(message, meta)
  }

  fatal (message: string, meta?: object): void {
    this.winstonLogger.crit(message, meta)
  }
}

```

Configure **@node-ts/bus-core** to use your log adapter

```typescript
import { Bus } from '@node-ts/bus-core'
import { WinstonLogger } from './winston-logger'
​
async function run () {
  const bus = await Bus.configure()
    .withLogger((target: string) => new WinstonLogger(target))
    .initialize()
}
```