Merge pull request #1270 from hwchase17/vwp/add_environment_info

Add Environment Info to Run Logs

langchain/src/callbacks/handlers/tracer_langchain.ts

@@ -1,3 +1,4 @@
+import { getRuntimeEnvironment } from "../../util/env.js";
 import { BaseTracer, Run, BaseRun } from "./tracer.js";
 
 export interface RunCreate extends BaseRun {
@@ -143,14 +144,16 @@ export class LangChainTracer
     example_id: string | undefined = undefined
   ): Promise<RunCreate> {
     const session = await this.ensureSession();
+    const runExtra = run.extra ?? {};
+    runExtra.runtime = await getRuntimeEnvironment();
     const persistedRun: RunCreate = {
       id: run.id,
       name: run.name,
       start_time: run.start_time,
       end_time: run.end_time,
       run_type: run.run_type,
       reference_example_id: example_id,
-      extra: run.extra ?? {},
+      extra: runExtra,
       execution_order: run.execution_order,
       serialized: run.serialized,
       error: run.error,

langchain/src/util/env.ts

@@ -24,3 +24,24 @@ export const getEnv = () => {
 
   return env;
 };
+
+export type RuntimeEnvironment = {
+  library: string;
+  libraryVersion?: string;
+  runtime: string;
+  runtimeVersion?: string;
+};
+
+let runtimeEnvironment: RuntimeEnvironment | undefined;
+
+export async function getRuntimeEnvironment(): Promise<RuntimeEnvironment> {
+  if (runtimeEnvironment === undefined) {
+    const env = getEnv();
+
+    runtimeEnvironment = {
+      library: "langchain-js",
+      runtime: env,
+    };
+  }
+  return runtimeEnvironment;
+}

langchain/src/util/tests/environment.test.ts

@@ -0,0 +1,7 @@
+import { getRuntimeEnvironment } from "../env.js";
+
+test("test getRuntimeEnvironment", async () => {
+  const runtimeEnvironment = await getRuntimeEnvironment();
+  console.log(runtimeEnvironment);
+  expect(runtimeEnvironment.runtime).toEqual("node");
+});