Automate Notion API Updates with Webhooks and Langchain
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This workflow leverages n8n's Webhook Trigger and Langchain nodes to process incoming data, generate embeddings, and update a Supabase vector store. It then utilizes a RAG Agent for contextual processing before updating a Google Sheet and sending Slack alerts on errors.
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About This Workflow
Overview
This n8n workflow is designed to automate updates related to the Notion API by triggering an automated process via a webhook. It integrates with Langchain for advanced natural language processing capabilities, including text splitting, embedding generation using OpenAI, and vector storage and retrieval with Supabase. The core logic involves receiving data through a webhook, processing it with a RAG (Retrieval-Augmented Generation) Agent that can leverage contextual information from Supabase and an Anthropic Chat Model, and then updating a Google Sheet with the processed results. Error handling is included to send alerts to Slack.
Key Features
- Webhook Trigger: Initiates the workflow when new data is sent to a specific endpoint.
- Langchain Integration: Utilizes Text Splitter, Embeddings (OpenAI), Vector Store (Supabase), Chat Model (Anthropic), and RAG Agent for sophisticated text processing and AI interaction.
- Supabase Vector Store: Stores and retrieves text embeddings for contextual understanding.
- RAG Agent: Empowers the workflow to perform complex natural language tasks by retrieving relevant context.
- Google Sheets Integration: Appends processed data to a specified Google Sheet.
- Error Alerting: Sends notifications to Slack in case of workflow failures.
How To Use
- Set up the "Webhook Trigger" node with your desired path (e.g.,
notion-api-update). - Configure the "Text Splitter" node to define how incoming text should be chunked.
- Connect "Embeddings" (OpenAI) and "Supabase Insert" to create and store vector representations of the data.
- Set up "Supabase Query" to retrieve relevant context.
- Configure the "Chat Model" (Anthropic) and "RAG Agent" for advanced AI processing, ensuring correct prompt and system message setup.
- Link the "Append Sheet" node to your Google Sheets credentials and specify the target Sheet ID and Log sheet.
- Configure the "Slack Alert" node with your Slack credentials and channel for error notifications.
Apps Used
Workflow JSON
{
"id": "5d97aa7d-0f4d-4adf-abc5-11d6e0094642",
"name": "Automate Notion API Updates with Webhooks and Langchain",
"nodes": 0,
"category": "Misc",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
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ID: 5d97aa7d-0f4d...
About the Author
Crypto_Watcher
Web3 Developer
Automated trading bots and blockchain monitoring workflows.
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