Function initializeOTEL

initializeOTEL(
    config?: InitializeOTELConfig,
): {
    DEFAULT_LANGSMITH_SPAN_EXPORTER: LangSmithOTLPTraceExporter;
    DEFAULT_LANGSMITH_SPAN_PROCESSOR: LangSmithOTLPSpanProcessor;
    DEFAULT_LANGSMITH_TRACER_PROVIDER: TracerProvider;
}
Initializes OpenTelemetry with LangSmith-specific configuration for tracing.

Call this once at the start of your application to enable tracing integration. Sets global OpenTelemetry components including the tracer provider and context manager.

Requires the following peer dependencies to be installed:
- @opentelemetry/api
- @opentelemetry/sdk-trace-base
- @opentelemetry/exporter-trace-otlp-proto
- @opentelemetry/context-async-hooks
Parameters
- config: InitializeOTELConfig = {}
Returns {
    DEFAULT_LANGSMITH_SPAN_EXPORTER: LangSmithOTLPTraceExporter;
    DEFAULT_LANGSMITH_SPAN_PROCESSOR: LangSmithOTLPSpanProcessor;
    DEFAULT_LANGSMITH_TRACER_PROVIDER: TracerProvider;
}
Object containing the initialized OTEL components (tracer provider, span processor, exporter)
Example
```
import { initializeOTEL } from "langsmith/experimental/otel/setup";
initializeOTEL();
```
Example: With custom tracer provider
```
import { initializeOTEL } from "langsmith/experimental/otel/setup";
import { BasicTracerProvider } from "@opentelemetry/sdk-trace-base";

const customProvider = new BasicTracerProvider();
initializeOTEL({ globalTracerProvider: customProvider });
```
- Defined in remotes/langchain-ai/langsmith-sdk/main/js/src/experimental/otel/setup.ts:80

Function initializeOTEL

Parameters

Returns { DEFAULT_LANGSMITH_SPAN_EXPORTER: LangSmithOTLPTraceExporter; DEFAULT_LANGSMITH_SPAN_PROCESSOR: LangSmithOTLPSpanProcessor; DEFAULT_LANGSMITH_TRACER_PROVIDER: TracerProvider;}

Example

Example: With custom tracer provider

Settings

Returns {
DEFAULT_LANGSMITH_SPAN_EXPORTER: LangSmithOTLPTraceExporter;
DEFAULT_LANGSMITH_SPAN_PROCESSOR: LangSmithOTLPSpanProcessor;
DEFAULT_LANGSMITH_TRACER_PROVIDER: TracerProvider;
}