whoami•2y ago

Langchain + convex action

While langchain's pdf-loader works with use node directive, my following code won't work in both js and node env.

import { v } from "convex/values"
import { ChatOpenAI } from "langchain/chat_models/openai"
import { HumanChatMessage } from "langchain/dist/schema"

import { action } from "./_generated/server"

export const extract = action({
  args: {
    report: v.id("reports"),
  },
  handler: async ({ runMutation, runQuery }, { report }) => {
    const docs = "..."
    const chat = new ChatOpenAI({ temperature: 0 })

    const response = await chat.call([
      new HumanChatMessage(`Translate the doc: ${docs}`),
    ])

    runMutation("reports:patch", { id: report, insights: [response.text] })
  },
})

import { v } from "convex/values"
import { ChatOpenAI } from "langchain/chat_models/openai"
import { HumanChatMessage } from "langchain/dist/schema"

import { action } from "./_generated/server"

export const extract = action({
  args: {
    report: v.id("reports"),
  },
  handler: async ({ runMutation, runQuery }, { report }) => {
    const docs = "..."
    const chat = new ChatOpenAI({ temperature: 0 })

    const response = await chat.call([
      new HumanChatMessage(`Translate the doc: ${docs}`),
    ])

    runMutation("reports:patch", { id: report, insights: [response.text] })
  },
})

and the error is

✖ Error: Unable to bundle Convex modules
esbuild failed: Error: Build failed with 1 error:
convex/insights.ts:3:33: ERROR: Could not resolve "langchain/dist/schema"
✘ [ERROR] Could not resolve "langchain/dist/schema"

    convex/insights.ts:3:33:
      3 │ ... from "langchain/dist/schema"
        ╵          ~~~~~~~~~~~~~~~~~~~~~~~

  The path "./dist/schema" is not exported
  by package "langchain":

    node_modules/langchain/package.json:598:13:
      598 │   "exports": {
          ╵              ^

  You can mark the path
  "langchain/dist/schema" as external to
  exclude it from the bundle, which will
  remove this error.

✖ Error: Unable to bundle Convex modules
esbuild failed: Error: Build failed with 1 error:
convex/insights.ts:3:33: ERROR: Could not resolve "langchain/dist/schema"

✖ Error: Unable to bundle Convex modules
esbuild failed: Error: Build failed with 1 error:
convex/insights.ts:3:33: ERROR: Could not resolve "langchain/dist/schema"
✘ [ERROR] Could not resolve "langchain/dist/schema"

    convex/insights.ts:3:33:
      3 │ ... from "langchain/dist/schema"
        ╵          ~~~~~~~~~~~~~~~~~~~~~~~

  The path "./dist/schema" is not exported
  by package "langchain":

    node_modules/langchain/package.json:598:13:
      598 │   "exports": {
          ╵              ^

  You can mark the path
  "langchain/dist/schema" as external to
  exclude it from the bundle, which will
  remove this error.

✖ Error: Unable to bundle Convex modules
esbuild failed: Error: Build failed with 1 error:
convex/insights.ts:3:33: ERROR: Could not resolve "langchain/dist/schema"

any insights?

1 Reply

ballingt•2y ago

mentioned in other thread, I think langchain/dist/schema the wrong import path?

Langchain + convex action

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