The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"id": "mjCQV12PbF6fw8hR",
"name": "LangChain - Example - Workflow Retriever",
"tags": [
{
"id": "snf16n0p2UrGP838",
"name": "LangChain - Example",
"createdAt": "2023-09-25T16:21:55.962Z",
"updatedAt": "2023-09-25T16:21:55.962Z"
}
],
"nodes": [
{
"id": "efdc3050-6c68-4419-9f12-f37d6fefb276",
"name": "When clicking \"Execute Workflow\"",
"type": "n8n-nodes-base.manualTrigger",
"position": [
460,
200
],
"parameters": {},
"typeVersion": 1
},
{
"id": "e0edb9ab-c59f-4d34-983d-861bb2df4f01",
"name": "Workflow Retriever",
"type": "@n8n/n8n-nodes-langchain.retrieverWorkflow",
"position": [
1120,
440
],
"parameters": {
"workflowId": "QacfBRBnf1xOyckC"
},
"typeVersion": 1
},
{
"id": "ba47dd13-67d0-499a-b9a2-16928099efce",
"name": "Retrieval QA Chain2",
"type": "@n8n/n8n-nodes-langchain.chainRetrievalQa",
"position": [
900,
200
],
"parameters": {},
"typeVersion": 1
},
{
"id": "f6d16571-0573-4860-aed9-611f93b050ad",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
800,
480
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "4fd00751-3db0-489b-8c7f-4ee0fb32fb51",
"name": "Example Prompt",
"type": "n8n-nodes-base.set",
"position": [
680,
200
],
"parameters": {
"fields": {
"values": [
{
"name": "input",
"stringValue": "What notes can you find for Jay Gatsby and what is his email address?"
}
]
},
"options": {}
},
"typeVersion": 3
},
{
"id": "732b6277-cb4d-4586-ab95-778ac9473fe5",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
860,
140
],
"parameters": {
"width": 363,
"height": 211.90203341144422,
"content": "### Q&A on data returned from a workflow"
},
"typeVersion": 1
},
{
"id": "f09583a3-78e3-4888-8251-2148ffb7ab18",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1040,
400
],
"parameters": {
"width": 262.67019427016413,
"height": 255.8330939602389,
"content": "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nReplace \"Workflow ID\" with the ID the Subworkflow got saved as"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "48d3bdae-4cec-4b18-b92a-89215def0c68",
"connections": {
"Example Prompt": {
"main": [
[
{
"node": "Retrieval QA Chain2",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Retrieval QA Chain2",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Workflow Retriever": {
"ai_retriever": [
[
{
"node": "Retrieval QA Chain2",
"type": "ai_retriever",
"index": 0
}
]
]
},
"When clicking \"Execute Workflow\"": {
"main": [
[
{
"node": "Example Prompt",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
openAiApi
About this workflow
LangChain - Example - Workflow Retriever. Uses manualTrigger, retrieverWorkflow, chainRetrievalQa, lmChatOpenAi. Event-driven trigger; 7 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →