/**
* LangSmith Configuration Loader
* SPEC: SPEC-EVAL-001, REQ-EVAL-002
*
* Reads LangSmith configuration from existing environment variables.
* Returns null if LANGSMITH_API_KEY is not set (graceful degradation).
*
* Environment variables:
* - LANGSMITH_API_KEY (required) — API key for authentication
* - LANGSMITH_ENDPOINT (optional) — API URL, defaults to https://api.smith.langchain.com
* - LANGSMITH_PROJECT (optional) — Project name/ID, defaults to "default"
* - LANGSMITH_WORKSPACE_ID (optional) — Workspace ID
*/
import type { LangSmithConfig } from "./types.js";
const DEFAULT_API_URL = "https://api.smith.langchain.com";
const DEFAULT_PROJECT = "default";
/**
* Load LangSmith configuration from environment variables.
*
* @returns Configuration object if LANGSMITH_API_KEY is set, null otherwise.
*/
export function loadLangSmithConfig(): LangSmithConfig | null {
const apiKey = process.env.LANGSMITH_API_KEY;
if (!apiKey) {
return null;
}
return {
apiKey,
apiUrl: process.env.LANGSMITH_ENDPOINT || DEFAULT_API_URL,
project: process.env.LANGSMITH_PROJECT || DEFAULT_PROJECT,
workspaceId: process.env.LANGSMITH_WORKSPACE_ID,
};
}
/**
* Check if LangSmith is configured (API key present).
*/
export function isLangSmithEnabled(): boolean {
return !!process.env.LANGSMITH_API_KEY;
}
