# LaminarExporter

Sends Tracing data to Laminar via OTLP/HTTP (protobuf).

## Constructor

```typescript
new LaminarExporter(config?: LaminarExporterConfig)
```

## LaminarExporterConfig

```typescript
interface LaminarExporterConfig extends BaseExporterConfig {
  apiKey?: string;
  baseUrl?: string;
  endpoint?: string;
  headers?: Record<string, string>;
  realtime?: boolean;
  disableBatch?: boolean;
  batchSize?: number;
  timeoutMillis?: number;
}
```

Extends `BaseExporterConfig`, which includes:

- `logger?: IMastraLogger` - Logger instance
- `logLevel?: LogLevel | 'debug' | 'info' | 'warn' | 'error'` - Log level (default: INFO)

## Methods

### exportTracingEvent

```typescript
async exportTracingEvent(event: TracingEvent): Promise<void>
```

Exports a tracing event to Laminar.

### flush

```typescript
async flush(): Promise<void>
```

Force flushes any buffered spans to Laminar without shutting down the exporter. Useful in serverless environments where you need to ensure spans are exported before the runtime terminates.

### shutdown

```typescript
async shutdown(): Promise<void>
```

Flushes pending data and shuts down the exporter.

## Usage

### Zero-Config (using environment variables)

```typescript
import { LaminarExporter } from "@mastra/laminar";

// Reads from LMNR_PROJECT_API_KEY, LMNR_BASE_URL, LAMINAR_ENDPOINT
const exporter = new LaminarExporter();
```

### Explicit Configuration

```typescript
import { LaminarExporter } from "@mastra/laminar";

const exporter = new LaminarExporter({
  apiKey: process.env.LMNR_PROJECT_API_KEY,
  baseUrl: "https://api.lmnr.ai",
  realtime: true,
});
```