@opentelemetry/otlp-exporter-base

BaseExporter

The BaseExporter class provides a foundation for creating custom OTLP exporters. You can extend this class to implement your own logic for sending telemetry data.

const { BaseExporter } = require('@opentelemetry/otlp-exporter-base');

class MyCustomExporter extends BaseExporter {
  constructor(config) {
    super(config);
  }

  onInit(config) {
    // Initialize exporter with config
  }

  onShutdown() {
    // Cleanup resources
  }

  send(objects, onSuccess, onError) {
    // Send telemetry data
    onSuccess();
  }
}

const exporter = new MyCustomExporter({});

OTLPExporterConfig

The OTLPExporterConfig class is used to configure the OTLP exporter. It allows you to set properties such as the endpoint URL and headers for authentication.

const { OTLPExporterConfig } = require('@opentelemetry/otlp-exporter-base');

const config = new OTLPExporterConfig({
  url: 'http://localhost:4317',
  headers: {
    'Authorization': 'Bearer token'
  }
});

console.log(config);

Exporting Traces

This example demonstrates how to create a custom trace exporter by extending the BaseExporter class. The send method is implemented to handle the export of trace data.

const { BaseExporter } = require('@opentelemetry/otlp-exporter-base');
const { ReadableSpan } = require('@opentelemetry/sdk-trace-base');

class TraceExporter extends BaseExporter {
  send(spans, onSuccess, onError) {
    // Convert spans to OTLP format and send
    onSuccess();
  }
}

const exporter = new TraceExporter({});
const span = new ReadableSpan({
  name: 'example-span',
  startTime: Date.now(),
  endTime: Date.now() + 1000
});

exporter.export([span], () => console.log('Export successful'), (err) => console.error('Export failed', err));