Advanced Usage

const result = await lumina.trace('rag_pipeline', async (parentSpan) => {
  parentSpan.setAttribute('query', userQuery);

  // Child span 1: Vector search
  const docs = await lumina.trace('retrieval', async () => {
    return await vectorDB.search(userQuery);
  });

  // Child span 2: LLM synthesis
  const response = await lumina.traceLLM(
    () => llm.generate(buildPrompt(userQuery, docs)),
    { name: 'synthesis', system: 'anthropic' }
  );

  return response;
});

await lumina.trace('operation', async (span) => {
  span.setAttribute('userId', 'user-123');
  span.setAttribute('priority', 'high');
  span.addEvent('processing_started');

  // Your code here

  span.addEvent('processing_completed');
});

process.on('SIGTERM', async () => {
  await lumina.shutdown();
  process.exit(0);
});