LangChain - Example - Code Node Example

Self-coded LLM Chain Node

Integrations Used (4)

Lmopenai

Lmchatopenai

Code

Agent

Workflow Structure (8 nodes)

100%

Manual Trigger

When clicking "Execute Workflow"

Set

Langchain.code

Custom - LLM Chain Node

Langchain.lm Open Ai

OpenAI

Set

Set1

Langchain.lm Chat Open Ai

Chat OpenAI

Langchain.agent

Agent

Langchain.code

Custom - Wikipedia

Node Types:

default

trigger

transform

code

Requires credentials

Prerequisites

Required Credentials (1)

OpenAI

Used by: OpenAI, Chat OpenAI

Docs

Complexity

Complex

Advanced features used. Requires n8n experience.

Setup time: ~30 min

Score: 37/100

Custom Code

When to Use This Workflow

AI-Powered Content Creation

Automate content generation, summarization, or analysis using AI capabilities.

Save hours of manual work while maintaining quality and consistency.

Real-time Response

React instantly when events happen - new orders, form submissions, or API calls.

Zero delay between trigger and action for time-sensitive workflows.

Error Reduction

Eliminate human error from routine processes with consistent automation.

Improve accuracy and reliability across your workflows.

workflow.json

{
  "id": "q2MJWAqpKF2BCJkq",
  "meta": {
    "instanceId": "021d3c82ba2d3bc090cbf4fc81c9312668bcc34297e022bb3438c5c88a43a5ff"
  },
  "name": "LangChain - Example - Code Node Example",
  "tags": [
    {
      "id": "snf16n0p2UrGP838",
      "name": "LangChain - Example",
      "createdAt": "2023-09-25T16:21:55.962Z",
      "updatedAt": "2023-09-25T16:21:55.962Z"
    }
  ],
  "nodes": [
    {
      "id": "ad1a920e-1048-4b58-9c4a-a0469a1f189d",
      "name": "OpenAI",
      "type": "@n8n/n8n-nodes-langchain.lmOpenAi",
      "position": [
...