I’m trying to run a worker that returns some HTML on GET / and from that HTML on click on a button make a POST call to /langchainQA to use a Q&A chain to answer questions about a given document. How the code looks like: // imports import { Router } from 'itty-router'; import { OpenAI } from 'langchain/llms/openai'; import { FaissStore } from 'langchain/vectorstores/faiss'; import { OpenAIEmbeddings } from 'langchain/embeddings/openai'; import { RecursiveCharacterTextSplitter } from 'langchain/text_splitter'; const router = Router(); const model = new OpenAI({ temperature: 0, openAIApiKey: 'APIKEY', }); const textSplitter = new RecursiveCharacterTextSplitter({ chunkSize: 1000 }); const embeddings = new OpenAIEmbeddings({ openAIApiKey: 'APIKEY', }); const HTML = ... router.get('/', async () => { return new Response(html, { headers: { 'content-type': 'text/html;charset=UTF-8', }, }); }); router.post('/qa', async (request) => { const body = await request.json(); const { question, pdfContent } = body; const chunks = await textSplitter.splitText(pdfContent); const knowledgeStore = await FaissStore.fromTexts(chunks, {}, embeddings); const docs = knowledgeStore.similaritySearch(question); const chain = loadQAChain(model); const res = chain.run({ question, docs }); const answer = res.answer; return new Response(JSON.stringify(answer), { headers: { 'content-type': 'application/json' }, }); }); On const knowledgeStore = await FaissStore.fromTexts(chunks, {}, embeddings); I’m getting this error: ✘ [ERROR] Build failed with 2 errors: node_modules/langchain/dist/vectorstores/faiss.js:94:32: ERROR: Could not resolve “node:fs/promises” node_modules/langchain/dist/vectorstores/faiss.js:95:34: ERROR: Could not resolve “node:path” I have node_compat=true in my wrangler config. Any idea how to fix the unresolved imports? Thanks!

What version of Wrangler are you using?

⛅️ wrangler 3.0.1 ------------------