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N8N RAG KNOWLEDGE BASE

RAG knowledge assistant

14 actual nodes · 12 connections · Drive + chat trigger

Problem

Business knowledge stored in documents needed to stay searchable and useful in chat.

Solution

Connected Google Drive changes, document loading, embeddings, Supabase vector storage, and an AI chat agent.

Outcome

A document-aware assistant that can answer from current knowledge sources.

For

Teams maintaining internal knowledge bases.

Graph
File CreatedgoogleDriveTriggerFile CreatedDownload filegoogleDriveDownload fileSupabase Vector …vectorStoreSupabaseSupabase Vector StoreDefault Data Loa…documentDefaultDataLoaderDefault Data LoaderEmbeddings Googl…embeddingsGoogleVertexEmbeddings Google VertexWhen chat messag…chatTriggerWhen chat message receivedAI AgentagentAI AgentSupabase Vector …vectorStoreSupabaseSupabase Vector Store1File UpdatedgoogleDriveTriggerFile UpdatedDelete a rowsupabaseDelete a rowDownload file1googleDriveDownload file1File DeletedgoogleDriveTriggerFile DeletedDelete a row1supabaseDelete a row1OpenAI Chat ModellmChatOpenAiOpenAI Chat Model

14 nodes · 12 connections from the original workflow. Teal lines show the main flow; purple lines connect AI models, memory, and tools. Drag to pan; use + to inspect larger workflows.