LangChain - Example - Workflow Retriever
Answer questions about your n8n workflows by retrieving relevant workflow data from your n8n instance. This workflow connects to your n8n instance to fetch workflow definitions, which are then processed by OpenAI's chat model to answer your queries. Developers can use this to quickly understand a workflow's purpose, troubleshoot issues, or find examples of specific node configurations.
Workflow JSON
{"id": "mjCQV12PbF6fw8hR", "meta": {"instanceId": "021d3c82ba2d3bc090cbf4fc81c9312668bcc34297e022bb3438c5c88a43a5ff"}, "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": {"id": "", "name": "[Your openAiApi]"}}, "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, "pinData": {}, "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}]]}}}How to Import This Workflow
- 1Copy the workflow JSON above using the Copy Workflow JSON button.
- 2Open your n8n instance and go to Workflows.
- 3Click Import from JSON and paste the copied workflow.
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