Type Alias LangfuseObservation

Union type representing any Langfuse observation wrapper.

This type encompasses all observation types supported by Langfuse, providing a unified interface for handling different kinds of traced operations. It's particularly useful for generic functions that work with any observation type.

Included Types

LangfuseSpan: General-purpose operations and workflows
LangfuseGeneration: LLM calls and AI model interactions
LangfuseEmbedding: Text embedding and vector operations
LangfuseAgent: AI agent workflows with tool usage
LangfuseTool: Individual tool calls and API requests
LangfuseChain: Multi-step processes and pipelines
LangfuseRetriever: Document retrieval and search operations
LangfuseEvaluator: Quality assessment and scoring
LangfuseGuardrail: Safety checks and content filtering
LangfuseEvent: Point-in-time occurrences and log entries

Example

// Function accepting any observation type
function logObservation(obs: LangfuseObservation) {
  console.log(`Observation ${obs.id} in trace ${obs.traceId}`);

  // All observations have common methods
  obs.updateTrace({ tags: ['logged'] });
  obs.end();
}

// Works with any observation type
const span = startObservation('test-span');
const generation = startObservation('llm-call', {}, { asType: 'generation' });
const agent = startObservation('ai-agent', {}, { asType: 'agent' });

logObservation(span);
logObservation(generation);
logObservation(agent);

Type Alias LangfuseObservation

Included Types

Example

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