OtelConfig

Configuration for OpenTelemetry trace export. This class provides configuration options for exporting LangSmith runs as OpenTelemetry traces. Configuration can be loaded from environment variables or system properties, or set manually via the builder. Environment variables:

• OTEL_EXPORTER_OTLP_ENDPOINT: The OTEL endpoint URL (default: http://localhost:4318/v1/traces)
• OTEL_EXPORTER_OTLP_ENABLED: Whether export is enabled (default: false)
• OTEL_EXPORTER_OTLP_TIMEOUT: Timeout in seconds (default: 10) System properties:
• langchain.otel.endpoint
• langchain.otel.enabled
• langchain.otel.timeout