{
  "id": "klsAKNm0Q07J8RXY",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "Build RAG Chatbot for Your Website Using Supabase",
  "tags": [],
  "nodes": [
    {
      "id": "c2c34da8-27e8-4881-a3fd-3b5f6987e0bf",
      "name": "When chat message received",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "position": [
        500,
        -580
      ],
      "parameters": {
        "mode": "webhook",
        "public": true,
        "options": {}
      },
      "typeVersion": 1.1
    },
    {
      "id": "31f5d600-1694-4d50-a581-0880f65a7755",
      "name": "HTML Extract",
      "type": "n8n-nodes-base.htmlExtract",
      "position": [
        -460,
        -540
      ],
      "parameters": {
        "options": {},
        "extractionValues": {
          "values": [
            {
              "key": "title",
              "cssSelector": "title, h1"
            },
            {
              "key": "content",
              "cssSelector": "p, article, .content, .post-content, main"
            },
            {
              "key": "meta_description",
              "attribute": "content",
              "cssSelector": "meta[name='description']",
              "returnValue": "attribute"
            },
            {
              "key": "links",
              "attribute": "href",
              "cssSelector": "a[href]",
              "returnValue": "attribute"
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "id": "d48d0d67-cfb6-4058-96e2-4198b40650bc",
      "name": "Default Data Loader",
      "type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
      "position": [
        20,
        -360
      ],
      "parameters": {
        "loader": "jsonLoader",
        "options": {
          "metadata": {
            "metadataValues": [
              {
                "name": "website_url",
                "value": "={{ $('Enter Website Url').item.json['Website Url'] }}"
              }
            ]
          }
        },
        "dataType": "binary"
      },
      "typeVersion": 1
    },
    {
      "id": "32b79786-e8d1-4083-80e9-4d2eada2c46b",
      "name": "Recursive Character Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
      "position": [
        120,
        -160
      ],
      "parameters": {
        "options": {},
        "chunkSize": 3000,
        "chunkOverlap": 500
      },
      "typeVersion": 1
    },
    {
      "id": "b7541584-131f-4868-b8dd-053ab509ab1b",
      "name": "Supabase Vector Store",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "position": [
        -40,
        -540
      ],
      "parameters": {
        "mode": "insert",
        "options": {},
        "tableName": {
          "__rl": true,
          "mode": "list",
          "value": "documents",
          "cachedResultName": "documents"
        },
        "embeddingBatchSize": 100
      },
      "credentials": {
        "supabaseApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "7b923d0f-c803-4b3c-afd8-ee680793c955",
      "name": "Enter Website Url",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        -820,
        -540
      ],
      "parameters": {
        "options": {},
        "formTitle": "Form",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Website Url",
              "placeholder": "Enter Website Url"
            }
          ]
        },
        "formDescription": "Enter Website Url"
      },
      "typeVersion": 2.2
    },
    {
      "id": "9e961fc5-b937-4f0e-b9f5-8ada4f3598f5",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -180,
        -680
      ],
      "parameters": {
        "color": 3,
        "width": 520,
        "height": 100,
        "content": "## Generating Embeddings from Website Content"
      },
      "typeVersion": 1
    },
    {
      "id": "7f4feec8-62a8-47a0-a8d6-9bce01261b1a",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        380,
        -680
      ],
      "parameters": {
        "width": 300,
        "height": 80,
        "content": "## User-Initiated Question"
      },
      "typeVersion": 1
    },
    {
      "id": "1c11199e-d217-4f2d-8afe-913f902ef47c",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        700,
        -680
      ],
      "parameters": {
        "color": 3,
        "width": 540,
        "height": 80,
        "content": "## Vector-Based Answer Retrieval"
      },
      "typeVersion": 1
    },
    {
      "id": "ddb37d99-4e8d-4eef-83da-6b3088360062",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -840,
        -680
      ],
      "parameters": {
        "width": 640,
        "height": 100,
        "content": "## Website Data Extraction\n\n"
      },
      "typeVersion": 1
    },
    {
      "id": "eeffcae9-2e9c-48f2-ad13-2b75b7218fe2",
      "name": "Website Data Scrapping",
      "type": "n8n-nodes-base.httpRequest",
      "maxTries": 3,
      "position": [
        -640,
        -540
      ],
      "parameters": {
        "url": "={{ $json['Website Url'] }}",
        "options": {
          "timeout": 30000,
          "redirect": {
            "redirect": {
              "maxRedirects": 5
            }
          }
        }
      },
      "retryOnFail": true,
      "typeVersion": 4.1
    },
    {
      "id": "df8e6032-41f2-4f95-8906-7150ce565d8a",
      "name": "Convert to File",
      "type": "n8n-nodes-base.convertToFile",
      "position": [
        -320,
        -540
      ],
      "parameters": {
        "options": {},
        "operation": "toJson"
      },
      "typeVersion": 1.1
    },
    {
      "id": "697c29c6-6bcd-4748-a874-3c754f9b034e",
      "name": "Embeddings Cohere",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "position": [
        -100,
        -360
      ],
      "parameters": {},
      "credentials": {
        "cohereApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "d8d3a79a-1ac2-42dd-b383-e39bbcbded75",
      "name": "Question & Answer Retrieve",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        820,
        -580
      ],
      "parameters": {
        "options": {
          "systemMessage": "=# Overview  \nYou are an AI agent that responds strictly using information from stored document embeddings in a supabase vector store.  \n\n## Context  \n- The agent is designed to provide accurate, document-based answers.  \n- It must avoid using external knowledge or assumptions.  \n\n## Instructions  \n1. Analyze the user's question.  \n2. Retrieve relevant content from the document embeddings using supabase.  \n3. Construct a response only from the matching document chunks.\n## Tools  \n- Vector store containing embedded documents\n- Embeddings Cohere  \n\n## SOP (Standard Operating Procedure)  \n1. Receive user query.  \n2. Search the vector store for relevant document chunks.  \n3. Extract and synthesize an answer using only that content.  \n4. If no matches, issue fallback message.  \n\n## Final Notes  \n- Do not rely on prior training or external facts.  \n- The response must remain strictly grounded in the documents.  "
        }
      },
      "typeVersion": 1.8
    },
    {
      "id": "65d51d86-cae3-4cdb-9d95-025962195953",
      "name": "Data From Supabase Vector Store",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "position": [
        1000,
        -360
      ],
      "parameters": {
        "mode": "retrieve-as-tool",
        "topK": null,
        "options": {},
        "toolName": "documents_knowledge_base",
        "tableName": {
          "__rl": true,
          "mode": "list",
          "value": "documents",
          "cachedResultName": "documents"
        },
        "toolDescription": "work with documents data in Supabase vector store",
        "includeDocumentMetadata": false
      },
      "credentials": {
        "supabaseApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "6ef28803-e21f-4733-a6a9-d894b97dbb35",
      "name": "Embeddings With Cohere",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "position": [
        1020,
        -140
      ],
      "parameters": {},
      "credentials": {
        "cohereApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "4796d1f3-ab76-4ed4-86b3-96bca2aae4e9",
      "name": "Chat Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryPostgresChat",
      "position": [
        900,
        -320
      ],
      "parameters": {
        "tableName": "chat_memory",
        "contextWindowLength": 3
      },
      "credentials": {
        "postgres": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.3
    },
    {
      "id": "2ce21a19-e586-4cc6-88ed-b1957b04a06a",
      "name": "OpenAI Chat Modell",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        760,
        -340
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.2
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "1fe65722-2127-4e4c-8af6-d8c967259653",
  "connections": {
    "Chat Memory": {
      "ai_memory": [
        [
          {
            "node": "Question & Answer Retrieve",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "HTML Extract": {
      "main": [
        [
          {
            "node": "Convert to File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Convert to File": {
      "main": [
        [
          {
            "node": "Supabase Vector Store",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Embeddings Cohere": {
      "ai_embedding": [
        [
          {
            "node": "Supabase Vector Store",
            "type": "ai_embedding",
            "index": 0
          }
        ]
      ]
    },
    "Enter Website Url": {
      "main": [
        [
          {
            "node": "Website Data Scrapping",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Modell": {
      "ai_languageModel": [
        [
          {
            "node": "Question & Answer Retrieve",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Default Data Loader": {
      "ai_document": [
        [
          {
            "node": "Supabase Vector Store",
            "type": "ai_document",
            "index": 0
          }
        ]
      ]
    },
    "Embeddings With Cohere": {
      "ai_embedding": [
        [
          {
            "node": "Data From Supabase Vector Store",
            "type": "ai_embedding",
            "index": 0
          }
        ]
      ]
    },
    "Website Data Scrapping": {
      "main": [
        [
          {
            "node": "HTML Extract",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When chat message received": {
      "main": [
        [
          {
            "node": "Question & Answer Retrieve",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Data From Supabase Vector Store": {
      "ai_tool": [
        [
          {
            "node": "Question & Answer Retrieve",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Recursive Character Text Splitter": {
      "ai_textSplitter": [
        [
          {
            "node": "Default Data Loader",
            "type": "ai_textSplitter",
            "index": 0
          }
        ]
      ]
    }
  }
}