internal(eslint): resolve eslint warnings and errors

.github/workflows/check-broken-links.yml

@@ -22,4 +22,4 @@ jobs:
       - name: Build scripts
         run: pnpm build --filter @langchain/scripts
       - name: Check broken links
-        run: pnpm --filter core_docs check:broken-links:ci
+        run: pnpm check:broken-links:ci

.github/workflows/deploy-api-refs-preview.yml

@@ -42,7 +42,7 @@ jobs:
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
       - name: Build All Projects
-        run: pnpm build --filter=!examples --filter=!api_refs --filter=!core_docs --filter=!create-langchain-integration
+        run: pnpm build --filter=!examples --filter=!api_refs --filter=!create-langchain-integration
       - name: Build Project Artifacts
         run: vercel build --token=${{ secrets.VERCEL_TOKEN }}
       - name: Deploy Project Artifacts to Vercel

.github/workflows/deploy-api-refs-prod.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
       - name: Build All Projects
-        run: pnpm build --filter=!examples --filter=!api_refs --filter=!core_docs --filter=!create-langchain-integration
+        run: pnpm build --filter=!examples --filter=!api_refs --filter=!create-langchain-integration
       - name: Build Project Artifacts
         run: |
           if [ ${{ github.ref }} = 'refs/heads/main' ]; then

CONTRIBUTING.md

@@ -293,7 +293,7 @@ and in generated documentation.
 ##### Note: you only need to follow these steps if you are building the docs site locally
 
 1. [Quarto](https://quarto.org/) - package that converts Jupyter notebooks (`.ipynb` files) into `.mdx` files for serving in Docusaurus.
-2. `pnpm build --filter=core_docs` - It's as simple as that! (or you can simply run `pnpm build` from `docs/core_docs/`)
+2. `pnpm build` - It's as simple as that! (or you can simply run `pnpm build` from `docs/core_docs/`)
 
 All notebooks are converted to `.md` files and automatically gitignored. If you would like to create a non notebook doc, it must be a `.mdx` file.
 

dependency_range_tests/docker-compose.yml

@@ -1,4 +1,3 @@
-
 services:
   # LangChain
   langchain-latest-deps:
@@ -38,6 +37,7 @@ services:
       - ./scripts/with_standard_tests/community/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/langchain-community:/libs/langchain-community
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/community/test-with-latest-deps.sh
   community-lowest-deps:
@@ -53,6 +53,7 @@ services:
       - ./scripts/with_standard_tests/community/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/langchain-community:/libs/langchain-community
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/community/test-with-lowest-deps.sh
   community-npm-install:
@@ -67,6 +68,7 @@ services:
       - ./scripts/with_standard_tests/community/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/langchain-community:/libs/langchain-community
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/community/npm-install.sh
 
@@ -84,6 +86,7 @@ services:
       - ./scripts/with_standard_tests/openai/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/providers/langchain-openai:/libs/providers/langchain-openai
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/openai/test-with-latest-deps.sh
   openai-lowest-deps:
@@ -99,6 +102,7 @@ services:
       - ./scripts/with_standard_tests/openai/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/providers/langchain-openai:/libs/providers/langchain-openai
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/openai/test-with-lowest-deps.sh
 
@@ -116,6 +120,7 @@ services:
       - ./scripts/with_standard_tests/anthropic/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/providers/langchain-anthropic:/libs/providers/langchain-anthropic
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/anthropic/test-with-latest-deps.sh
   anthropic-lowest-deps:
@@ -131,6 +136,7 @@ services:
       - ./scripts/with_standard_tests/anthropic/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/providers/langchain-anthropic:/libs/providers/langchain-anthropic
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/anthropic/test-with-lowest-deps.sh
 
@@ -148,6 +154,7 @@ services:
       - ./scripts/with_standard_tests/google-vertexai/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/providers/langchain-google-vertexai:/libs/providers/langchain-google-vertexai
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/google-vertexai/test-with-latest-deps.sh
   google-vertexai-lowest-deps:
@@ -163,6 +170,7 @@ services:
       - ./scripts/with_standard_tests/google-vertexai/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/providers/langchain-google-vertexai:/libs/providers/langchain-google-vertexai
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/google-vertexai/test-with-lowest-deps.sh
 
@@ -180,6 +188,7 @@ services:
       - ./scripts/with_standard_tests/cohere/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/providers/langchain-cohere:/libs/providers/langchain-cohere
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/cohere/test-with-latest-deps.sh
   cohere-lowest-deps:
@@ -195,5 +204,6 @@ services:
       - ./scripts/with_standard_tests/cohere/node/package.json:/package.json
       - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../libs/providers/langchain-cohere:/libs/providers/langchain-cohere
+      - ../internal:/internal
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/cohere/test-with-lowest-deps.sh

dependency_range_tests/scripts/with_standard_tests/google-vertexai/test-with-lowest-deps.sh

@@ -35,4 +35,9 @@ pnpm install --no-frozen-lockfile
 # not try to build the package/its workspace dependencies.
 cd "$monorepo_vertexai_dir"
 
+# Install @langchain/google-gauth dependency explicitly
+# This is needed because the update script converts the workspace dependency
+# to use the minimum version, but in the test environment we need to install
+# it as a regular dependency since workspace packages aren't available
+pnpm add @langchain/google-gauth
 pnpm test

environment_tests/docker-compose.yml

@@ -22,6 +22,7 @@ services:
       - ../libs/langchain-scripts:/langchain-scripts
       - ../libs/langchain-textsplitters:/langchain-textsplitters
       - ../internal/build:/langchain-build
+      - ../internal/eslint:/langchain-eslint
     command: bash /scripts/docker-entrypoint.sh
   test-exports-esm:
     image: node:20
@@ -46,6 +47,7 @@ services:
       - ../libs/langchain-scripts:/langchain-scripts
       - ../libs/langchain-textsplitters:/langchain-textsplitters
       - ../internal/build:/langchain-build
+      - ../internal/eslint:/langchain-eslint
     command: bash /scripts/docker-entrypoint.sh
   test-exports-tsc:
     image: node:20
@@ -70,6 +72,7 @@ services:
       - ../libs/langchain-scripts:/langchain-scripts
       - ../libs/langchain-textsplitters:/langchain-textsplitters
       - ../internal/build:/langchain-build
+      - ../internal/eslint:/langchain-eslint
     command: bash /scripts/docker-entrypoint.sh
   test-exports-cjs:
     image: node:20
@@ -94,6 +97,7 @@ services:
       - ../libs/langchain-scripts:/langchain-scripts
       - ../libs/langchain-textsplitters:/langchain-textsplitters
       - ../internal/build:/langchain-build
+      - ../internal/eslint:/langchain-eslint
     command: bash /scripts/docker-entrypoint.sh
   test-exports-cf:
     image: node:20
@@ -118,6 +122,7 @@ services:
       - ../libs/langchain-scripts:/langchain-scripts
       - ../libs/langchain-textsplitters:/langchain-textsplitters
       - ../internal/build:/langchain-build
+      - ../internal/eslint:/langchain-eslint
     command: bash /scripts/docker-entrypoint.sh
   test-exports-vercel:
     image: node:20
@@ -142,6 +147,7 @@ services:
       - ../libs/langchain-scripts:/langchain-scripts
       - ../libs/langchain-textsplitters:/langchain-textsplitters
       - ../internal/build:/langchain-build
+      - ../internal/eslint:/langchain-eslint
     command: bash /scripts/docker-entrypoint.sh
   test-exports-vite:
     image: node:20
@@ -166,6 +172,7 @@ services:
       - ../libs/langchain-scripts:/langchain-scripts
       - ../libs/langchain-textsplitters:/langchain-textsplitters
       - ../internal/build:/langchain-build
+      - ../internal/eslint:/langchain-eslint
     command: bash /scripts/docker-entrypoint.sh
   test-exports-bun:
     image: oven/bun
@@ -187,6 +194,7 @@ services:
       - ../libs/langchain-scripts:/langchain-scripts
       - ../libs/langchain-textsplitters:/langchain-textsplitters
       - ../internal/build:/langchain-build
+      - ../internal/eslint:/langchain-eslint
     command: bash /scripts/docker-bun-entrypoint.sh
   success:
     image: alpine:3.14

environment_tests/scripts/test-runner.ts

@@ -41,6 +41,7 @@ const dockerPackages: WorkspacePackage[] = [
     path: "/langchain-textsplitters",
   },
   { pkg: { name: "@langchain/build" }, path: "/langchain-build" },
+  { pkg: { name: "@langchain/eslint" }, path: "/langchain-eslint" },
 ];
 
 class EnvironmentTestRunner {

examples/src/embeddings/bedrock.ts

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-non-null-assertion */
 import { BedrockEmbeddings } from "@langchain/aws";
 
 const embeddings = new BedrockEmbeddings({

examples/src/guides/expression_language/message_history.ts

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-non-null-assertion */
 import {
   ChatPromptTemplate,
   MessagesPlaceholder,

examples/src/indexes/vector_stores/cloudflare_vectorize/example.ts

@@ -1,10 +1,4 @@
-// @ts-nocheck
-
-import type {
-  VectorizeIndex,
-  Fetcher,
-  Request,
-} from "@cloudflare/workers-types";
+import type { VectorizeIndex, Ai, Request } from "@cloudflare/workers-types";
 
 import {
   CloudflareVectorizeStore,
@@ -13,7 +7,7 @@ import {
 
 export interface Env {
   VECTORIZE_INDEX: VectorizeIndex;
-  AI: Fetcher;
+  AI: Ai;
 }
 
 export default {
@@ -28,7 +22,9 @@ export default {
     });
     if (pathname === "/") {
       const results = await store.similaritySearch("hello", 5);
-      return Response.json(results);
+      return new Response(JSON.stringify(results), {
+        headers: { "Content-Type": "application/json" },
+      });
     } else if (pathname === "/load") {
       // Upsertion by id is supported
       await store.addDocuments(
@@ -49,12 +45,19 @@ export default {
         { ids: ["id1", "id2", "id3"] }
       );
 
-      return Response.json({ success: true });
+      return new Response(JSON.stringify({ success: true }), {
+        headers: { "Content-Type": "application/json" },
+      });
     } else if (pathname === "/clear") {
       await store.delete({ ids: ["id1", "id2", "id3"] });
-      return Response.json({ success: true });
+      return new Response(JSON.stringify({ success: true }), {
+        headers: { "Content-Type": "application/json" },
+      });
     }
 
-    return Response.json({ error: "Not Found" }, { status: 404 });
+    return new Response(JSON.stringify({ error: "Not Found" }), {
+      status: 404,
+      headers: { "Content-Type": "application/json" },
+    });
   },
 };

examples/src/indexes/vector_stores/googlevertexai.ts

@@ -1,5 +1,4 @@
 /* eslint-disable no-process-env */
-/* eslint-disable @typescript-eslint/no-non-null-assertion */
 import { SyntheticEmbeddings } from "@langchain/core/utils/testing";
 import { GoogleCloudStorageDocstore } from "@langchain/community/stores/doc/gcs";
 import {

examples/src/indexes/vector_stores/pinecone/delete_docs.ts

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-non-null-assertion */
 import { Pinecone } from "@pinecone-database/pinecone";
 import { Document } from "@langchain/core/documents";
 import { OpenAIEmbeddings } from "@langchain/openai";

examples/src/indexes/vector_stores/pinecone/index_docs.ts

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-non-null-assertion */
 import { Pinecone } from "@pinecone-database/pinecone";
 import { Document } from "@langchain/core/documents";
 import { OpenAIEmbeddings } from "@langchain/openai";

examples/src/indexes/vector_stores/pinecone/mmr.ts

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-non-null-assertion */
 import { Pinecone } from "@pinecone-database/pinecone";
 import { OpenAIEmbeddings } from "@langchain/openai";
 import { PineconeStore } from "@langchain/pinecone";

examples/src/indexes/vector_stores/pinecone/query_docs.ts

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-non-null-assertion */
 import { Pinecone } from "@pinecone-database/pinecone";
 import { OpenAIEmbeddings } from "@langchain/openai";
 import { PineconeStore } from "@langchain/pinecone";

examples/src/retrievers/metal.ts

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-non-null-assertion */
 import Metal from "@getmetal/metal-sdk";
 import { MetalRetriever } from "@langchain/community/retrievers/metal";
 

examples/src/retrievers/multi_vector_small_chunks.ts

@@ -30,7 +30,6 @@ const subDocs = [];
 for (let i = 0; i < docs.length; i += 1) {
   const childDocs = await childSplitter.splitDocuments([docs[i]]);
   const taggedChildDocs = childDocs.map((childDoc) => {
-    // eslint-disable-next-line no-param-reassign
     childDoc.metadata[idKey] = docIds[i];
     return childDoc;
   });

examples/src/retrievers/zep_cloud.ts

@@ -3,7 +3,6 @@ import { randomUUID } from "crypto";
 import { ZepClient, type Zep } from "@getzep/zep-cloud";
 
 function sleep(ms: number) {
-  // eslint-disable-next-line no-promise-executor-return
   return new Promise((resolve) => setTimeout(resolve, ms));
 }
 

examples/src/tools/dalle_image_generation.ts

@@ -1,4 +1,3 @@
-/* eslint-disable no-process-env */
 import { DallEAPIWrapper } from "@langchain/openai";
 
 const tool = new DallEAPIWrapper({

examples/src/use_cases/chatbots/memory_management.ts

@@ -1,7 +1,3 @@
-/* eslint-disable import/first */
-/* eslint-disable arrow-body-style */
-/* eslint-disable import/no-duplicates */
-
 import { ChatOpenAI } from "@langchain/openai";
 
 const chat = new ChatOpenAI({
@@ -147,7 +143,7 @@ import {
   RunnableSequence,
 } from "@langchain/core/runnables";
 
-const trimMessages = async (_chainInput: Record<string, any>) => {
+const trimMessages = async (_chainInput: Record<string, unknown>) => {
   const storedMessages = await demoEphemeralChatMessageHistory.getMessages();
   if (storedMessages.length <= 2) {
     return false;

examples/src/use_cases/chatbots/quickstart.ts

@@ -1,7 +1,3 @@
-/* eslint-disable import/first */
-/* eslint-disable arrow-body-style */
-/* eslint-disable import/no-duplicates */
-
 import { ChatOpenAI } from "@langchain/openai";
 
 const chat = new ChatOpenAI({

examples/src/use_cases/chatbots/retrieval.ts

@@ -1,7 +1,3 @@
-/* eslint-disable import/first */
-/* eslint-disable arrow-body-style */
-/* eslint-disable import/no-duplicates */
-
 import { ChatOpenAI } from "@langchain/openai";
 
 const chat = new ChatOpenAI({

examples/src/use_cases/chatbots/tool_usage.ts

@@ -1,7 +1,3 @@
-/* eslint-disable import/first */
-/* eslint-disable arrow-body-style */
-/* eslint-disable import/no-duplicates */
-
 import { TavilySearchResults } from "@langchain/community/tools/tavily_search";
 import { ChatOpenAI } from "@langchain/openai";
 

examples/src/use_cases/human_in_the_loop/accept-feedback.ts

@@ -17,7 +17,7 @@ function askQuestion(question: string): Promise<string> {
   });
 }
 
-async function humanApproval(toolInvocations: any[]): Promise<any[]> {
+async function humanApproval(toolInvocations: unknown[]): Promise<unknown[]> {
   const toolStrs = toolInvocations
     .map((toolCall) => JSON.stringify(toolCall, null, 2))
     .join("\n\n");

examples/src/use_cases/query_analysis/quickstart/index_docs.ts

@@ -12,3 +12,4 @@ const embeddings = new OpenAIEmbeddings({
 const vectorStore = await Chroma.fromDocuments(chunkedDocs, embeddings, {
   collectionName: "yt-videos",
 });
+console.log(vectorStore);

examples/src/use_cases/query_analysis/quickstart/load_yt_videos.ts

@@ -52,9 +52,7 @@ const dates = [
   new Date("Nov 2, 2023"),
 ];
 docs.forEach((doc, idx) => {
-  // eslint-disable-next-line no-param-reassign
   doc.metadata.publish_year = getYear(dates[idx]);
-  // eslint-disable-next-line no-param-reassign
   doc.metadata.publish_date = dates[idx];
 });
 

examples/src/use_cases/sql/agents/high_cardinality_columns.ts

@@ -22,7 +22,7 @@ const db = await SqlDatabase.fromDataSourceParams({
 async function queryAsList(query: string): Promise<string[]> {
   const res: Array<{ [key: string]: string }> = JSON.parse(await db.run(query))
     .flat()
-    .filter((el: any) => el != null);
+    .filter((el: unknown) => el != null);
   const justValues: Array<string> = res.map((item) =>
     Object.values(item)[0]
       .replace(/\b\d+\b/g, "")