---
url: /appenders/stderr.md
---
# Standard Error Appender

This appender writes all log events to the standard error stream.

## Installation

:::code-group

```bash [npm]
npm install @tsed/logger-std
```

```bash [yarn]
yarn add @tsed/logger-std
```

```bash [pnpm]
pnpm add @tsed/logger-std
```

```bash [bun]
bun add @tsed/logger-std
```

:::

## Configuration

type - `stderr`
layout - object (optional, defaults to coloredLayout) - see [layouts](/layouts/index.md)

## Example

```typescript
import {Logger} from "@tsed/logger";
import {StderrAppender} from "@tsed/logger-std";

const logger = new Logger("loggerName");

logger.appenders.set("error-log", {
  type: StderrAppender,
  levels: ["debug", "trace", "info"]
});
```