Function get

packages/core/src/tracing/openai/index.ts:242–268

(obj: object, prop: string)

function createDeepProxy<T extends object>(target: T, currentPath = '', options: OpenAiOptions): T {
  return new Proxy(target, {
    get(obj: object, prop: string): unknown {
      const value = (obj as Record<string, unknown>)[prop];
      const methodPath = buildMethodPath(currentPath, String(prop));

      const instrumentedMethod = OPENAI_METHOD_REGISTRY[methodPath as keyof typeof OPENAI_METHOD_REGISTRY];
      if (typeof value === 'function' && instrumentedMethod) {
        return instrumentMethod(
          value as (...args: unknown[]) => Promise<unknown>,
          methodPath,
          instrumentedMethod,
          obj,
          options,
        );
      }

      if (typeof value === 'function') {
        // Bind non-instrumented functions to preserve the original `this` context,
        // which is required for accessing private class fields (e.g. #baseURL) in OpenAI SDK v5.
        return value.bind(obj);
      }

      if (value && typeof value === 'object') {
        return createDeepProxy(value, methodPath, options);
      }

      return value;
    },
  }) as T;
}