{ "name": "Chatbot", "nodes": [ { "parameters": { "operation": "download", "fileId": { "__rl": true, "value": "={{ $json.id }}", "mode": "id" }, "options": {} }, "type": "n8n-nodes-base.googleDrive", "typeVersion": 3, "position": [ 1232, 416 ], "name": "Download file", "credentials": { "googleDriveOAuth2Api": { "name": "" } } }, { "parameters": { "mode": "insert", "tableName": { "__rl": true, "value": "documents", "mode": "list", "cachedResultName": "documents" }, "options": {} }, "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase", "typeVersion": 1.3, "position": [ 1456, 416 ], "name": "Supabase Vector Store", "credentials": { "supabaseApi": { "name": "" } } }, { "parameters": { "pollTimes": { "item": [ { "mode": "everyMinute" } ] }, "triggerOn": "specificFolder", "folderToWatch": { "__rl": true, "value": "YOUR_GOOGLE_DRIVE_FOLDER_ID", "mode": "list", "cachedResultName": "RAG_project", "cachedResultUrl": "https://drive.google.com/drive/folders/YOUR_FOLDER_ID" }, "event": "fileCreated", "options": { "fileType": "all" } }, "type": "n8n-nodes-base.googleDriveTrigger", "typeVersion": 1, "position": [ 1008, 416 ], "name": "When new company file is uploaded", "credentials": { "googleDriveOAuth2Api": { "name": "" } } }, { "parameters": { "dataType": "binary", "options": {} }, "type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader", "typeVersion": 1.1, "position": [ 1664, 688 ], "name": "Chunk file" }, { "parameters": { "sessionIdType": "customKey", "sessionKey": "={{ $('Telegram Trigger').item.json.message.chat.id }}" }, "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow", "typeVersion": 1.3, "position": [ -272, 592 ], "name": "Simple Memory" }, { "parameters": { "mode": "retrieve-as-tool", "toolDescription": "Use this tool to retrieve information about Mainland houses", "tableName": { "__rl": true, "value": "documents", "mode": "list", "cachedResultName": "documents" }, "topK": 6, "options": {} }, "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase", "typeVersion": 1.3, "position": [ 640, 256 ], "name": "knowledge_base", "credentials": { "supabaseApi": { "name": "" } } }, { "parameters": { "operation": "append", "documentId": { "__rl": true, "value": "YOUR_GOOGLE_SHEET_ID", "mode": "list", "cachedResultName": "chatbot_leads", "cachedResultUrl": "https://docs.google.com/spreadsheets/d/YOUR_SHEET_ID" }, "sheetName": { "__rl": true, "value": "YOUR_SHEET_GID", "mode": "list", "cachedResultName": "chatbot_leads", "cachedResultUrl": "https://docs.google.com/spreadsheets/d/YOUR_SHEET_ID" }, "columns": { "mappingMode": "defineBelow", "value": { "Name": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Name', ``, 'string') }}", "Email": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Email', ``, 'string') }}", "Contact number": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Contact_number', ``, 'string') }}", "Number of bedrooms": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Number_of_bedrooms', ``, 'string') }}", "Preferred location": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Preferred_location', ``, 'string') }}", "Budget range": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Budget_range', ``, 'string') }}", "Property type": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Property_type', ``, 'string') }}", "Special preferences": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Special_preferences', ``, 'string') }}" }, "matchingColumns": [ "Name" ], "schema": [ { "id": "Name", "displayName": "Name", "required": false, "defaultMatch": false, "display": true, "type": "string", "canBeUsedToMatch": true, "removed": false }, { "id": "Email", "displayName": "Email", "required": false, "defaultMatch": false, "display": true, "type": "string", "canBeUsedToMatch": true }, { "id": "Contact number", "displayName": "Contact number", "required": false, "defaultMatch": false, "display": true, "type": "string", "canBeUsedToMatch": true }, { "id": "Number of bedrooms", "displayName": "Number of bedrooms", "required": false, "defaultMatch": false, "display": true, "type": "string", "canBeUsedToMatch": true }, { "id": "Preferred location", "displayName": "Preferred location", "required": false, "defaultMatch": false, "display": true, "type": "string", "canBeUsedToMatch": true }, { "id": "Budget range", "displayName": "Budget range", "required": false, "defaultMatch": false, "display": true, "type": "string", "canBeUsedToMatch": true }, { "id": "Property type", "displayName": "Property type", "required": false, "defaultMatch": false, "display": true, "type": "string", "canBeUsedToMatch": true }, { "id": "Special preferences", "displayName": "Special preferences", "required": false, "defaultMatch": false, "display": true, "type": "string", "canBeUsedToMatch": true } ], "attemptToConvertTypes": false, "convertFieldsToString": false }, "options": {} }, "type": "n8n-nodes-base.googleSheetsTool", "typeVersion": 4.7, "position": [ -112, 576 ], "name": "crm", "credentials": { "googleSheetsOAuth2Api": { "name": "" } } }, { "parameters": { "operation": "getAll", "calendar": { "__rl": true, "value": "your-calendar@gmail.com", "mode": "list", "cachedResultName": "your-calendar@gmail.com" }, "options": {} }, "type": "n8n-nodes-base.googleCalendarTool", "typeVersion": 1.3, "position": [ 32, 576 ], "name": "check_availability", "credentials": { "googleCalendarOAuth2Api": { "name": "" } } }, { "parameters": { "calendar": { "__rl": true, "value": "your-calendar@gmail.com", "mode": "list", "cachedResultName": "your-calendar@gmail.com" }, "start": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Start', `The start date and time of the requested inspection in ISO 8601 format e.g. 2026-03-07T11:00:00`, 'string') }}", "end": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('End', `The end date and time of the inspection slot, typically 1 hour after the start time, in ISO 8601 format e.g. 2026-03-07T12:00:00`, 'string') }}", "additionalFields": { "description": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Description', `The details of the event, which include:\n- name of prospect\n- email of prospect\n- property details (e.g 3 bedroom apartment Wuse)\n- location of property`, 'string') }}", "summary": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Summary', `the calendar event title, e.g 3 bedroom apartment viewing for Mr. Emeka`, 'string') }}" } }, "type": "n8n-nodes-base.googleCalendarTool", "typeVersion": 1.3, "position": [ 192, 576 ], "name": "schedule_inspection", "credentials": { "googleCalendarOAuth2Api": { "name": "" } } }, { "parameters": { "options": {} }, "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi", "typeVersion": 1.2, "position": [ 1344, 688 ], "name": "Embeddings OpenAI", "credentials": { "openAiApi": { "name": "" } } }, { "parameters": { "model": { "__rl": true, "value": "gpt-4o-mini", "mode": "list", "cachedResultName": "gpt-4o-mini" }, "builtInTools": {}, "options": {} }, "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi", "typeVersion": 1.3, "position": [ -432, 576 ], "name": "OpenAI Chat Model", "credentials": { "openAiApi": { "name": "" } } }, { "parameters": { "updates": [ "message" ], "additionalFields": {} }, "type": "n8n-nodes-base.telegramTrigger", "typeVersion": 1.2, "position": [ -1120, 64 ], "name": "Telegram Trigger", "credentials": { "telegramApi": { "name": "" } } }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 3 }, "conditions": [ { "id": "560e2db1-a6c4-4360-95e4-4ad80b920c13", "leftValue": "={{ $json.message.text }}", "rightValue": "", "operator": { "type": "string", "operation": "exists", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "type": "n8n-nodes-base.if", "typeVersion": 2.3, "position": [ -880, 64 ], "name": "Does text message exist?" }, { "parameters": { "resource": "file", "fileId": "={{ $json.message.voice.file_id }}", "additionalFields": {} }, "type": "n8n-nodes-base.telegram", "typeVersion": 1.2, "position": [ -560, 224 ], "name": "Download voice note", "credentials": { "telegramApi": { "name": "" } } }, { "parameters": { "jsCode": "const binaryData = items[0].binary.data;\nbinaryData.fileName = 'voice.ogg';\nbinaryData.mimeType = 'audio/ogg';\nreturn items;" }, "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ -368, 224 ], "name": "convert audio file from .oga to ogg" }, { "parameters": { "method": "POST", "url": "https://api.groq.com/openai/v1/audio/transcriptions", "sendHeaders": true, "headerParameters": { "parameters": [ { "name": "Authorization", "value": "YOUR_BEARER_TOKEN" } ] }, "sendBody": true, "contentType": "multipart-form-data", "bodyParameters": { "parameters": [ { "parameterType": "formBinaryData", "name": "file", "inputDataFieldName": "data" }, { "name": "model", "value": "whisper-large-v3-turbo" }, { "name": "response_format", "value": "json" } ] }, "options": {} }, "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.4, "position": [ -176, 224 ], "name": "transcribe audio" }, { "parameters": { "assignments": { "assignments": [ { "id": "396cefd3-0e5e-46e2-9229-b19be8939689", "name": "text", "value": "={{ $json.message.text }}", "type": "string" } ] }, "options": {} }, "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ -368, 48 ], "name": "standardize text to match audio file json" }, { "parameters": { "promptType": "define", "text": "={{ $json.text }}", "options": { "systemMessage": "## ROLE\nYou are Erica, a friendly and professional customer support assistant at Mainland Houses, a real estate company. Your responsibility is to guide potential buyers, understand their needs, recommend suitable properties step-by-step, like a real human property advisor, and assist with scheduling viewings for interested properties.\n\n---\n\n\n---\n\n## CONVERSATIONAL FLOW (MANDATORY ORDER)\n\n### STEP 1 - Lead Capture (First Interaction Only)\n\nAt the start of the conversation, politely collect\n- Name\n- Email\n- Contact number\n\nRules: \n- Ask only for missing information\n- Once all three are collected, immediately save them in the crm tool\n- After saving, confirm politely isng send_message and continue\n\nDo not proceed to property discussions until lead information has been saved\n\n---\n\n### STEP 2 - Need Qualification (Before Property Search)\n\nWhen a user asks about available houses or listings:\n\nDo NOT search immediately\n\nAsk clarifying questions using send_message, such as:\n\n- Preferred location\n- Budget range\n- Property type\n- Number of bedrooms\n- Special preferences\n\nContinue asking naturally until enough information is provided\n\nOnce enough information is gathered, update the crm with property requirements before searching\n\n---\n\n### STEP 3 - Property Search \n\nOnly after qualification is complete:\n\n- Use property_listings to retrieve matching properties.\n- NEVER guess property information. Always retrieve it using property_listings\n\n---\n\n### STEP 4- Summary Before Sharing\n\nAfter receiving results from property_listings\n\nDo NOT immediately send images or full details\n\nSend a short summary using send_message\n\nExample:\n\"We currently have 2 properties within your location and budget. Would you like me to share more details and photos?\"\n\nWait for user confirmation\n\n---\n\n### STEP 5- Sending Property Details and Images\n\nWhen the user asks for details or images:\n\n1. FIRST use property_listings again if needed to retrieve full property details and image URLS\n2. Send property explanations using send_message\n3. Send images using send_property_images\n\n---\n\n### STEP 6-Scheduling Property Viewings\n\n1. Use check_availability to find available dates and times for the property\n2. Present available slots to the user politely using send_message\n3. Once the user selects a preferred slot, use schedule_inspection to book the viewing appointment\n4. Confirm the booked viewing details using send_message\n5. Immediately after confirming, use the property_listings to retrieve the full details of the booked property incduing the assigned agents' information\n6. Use email_lead to send a confirmatory HTML email to the user's email address (collected in Step 1) containing:\n - The user's name\n - Property name, address, type, and any other relevant details retrieved from property_listing\n - The assigned agent's name and contact information\n - The confirmed viewing date and time\n - A professional, branded HTML email layout with a warm and friendly tone\n\nAlways follow up politely using send_message:\n\"Your viewing has been scheduled for [Date] at [Time]. We look forward to seeing you!\"\n\n---\n\n## IMPORTANT IMAGE SENDING RULES\n\nThe send_property_images tool contains TWO separate image fields.\n\nWhen sending images:\n\n- The first image URL MUST be entered in the first media field.\n- The second image URL MUST be entered in the second media field.\n- Only place ONE image URL per field.\n- NEVER send text inside the image field\n\nIf only one image exists:\n- Fill only the first image field\n\nImages MUST always come from data retrieved using property_listings\n\n---\n\n## Knowledge Questions\n\nIf a user asks about MAINLAND HOUSES:\n\n1. FIRST use knowledge_base.\n2. Then respond using send_message.\n\nIf information cannot be found:\nRespond politely using send_message and refer them to: concierge@mainlandhouses.com\n\n---\n\n## STYLE/TONE\n\n- Friendly\n- Professional\n- Conversational\n- Helpful and patient\n- Ask one step at a time\n- Never overwhelm the user\n\n---\n\n## TOOLS\n\n- knowledge_base: Retrieve company information.\n- crm: Save Name, Email, contact Number, and Property information the user needs (e.g., 3-bedroom apartment in Maryland).\n- property_listings: Retrieve property details and image URLs after qualification.\n- check_availability: Check available dates and times for property viewings.\n- schedule_inspection: Book a property viewing once the date and time are confirmed.\n- send_message: Use for EVERY message sent to the user.\n- send_property_images: Use only when sending property images after user confirmation.\n- email_lead: Use immediately after a viewing has been scheduled and confirmed. Retrieve all necessary property and agent details using property_listings before calling this tool. Use it to send a confirmatory email to the user's email address. The email body MUST be written in valid HTML and include: The user's name, full property details (name, address, type, etc.), the assigned agent's name and contact, the confirmed viewing date and time, the HTML should be professionally designed with a clean layout, branded with MAINLAND HOUSES, and written in a warm, friendly tone.\n\n## FINAL MANDATORY RULES\n\n- Every turn MUST call at least one tool.\n- Never produce normal text output.\n- Always use send_message for communication.\n- Always retrieve property data using property_listings before sending details or images.\n- Always check availability and schedule viewings using the new tools when appropriate.\n- Always send a confirmatory HTML email using email_lead immediately after a viewing is successfully booked via schedule_inspection.\n\nIf unsure what to do, ask a clarification question using send_message.\n\nCurrent date and time: {{ $now }}\n" } }, "type": "@n8n/n8n-nodes-langchain.agent", "typeVersion": 3.1, "position": [ 208, 48 ], "name": "AI Agent" }, { "parameters": { "documentId": { "__rl": true, "value": "YOUR_GOOGLE_SHEET_ID", "mode": "list", "cachedResultName": "chatbot_leads", "cachedResultUrl": "https://docs.google.com/spreadsheets/d/YOUR_SHEET_ID" }, "sheetName": { "__rl": true, "value": "YOUR_SHEET_GID", "mode": "list", "cachedResultName": "n8n chatbot", "cachedResultUrl": "https://docs.google.com/spreadsheets/d/YOUR_SHEET_ID" }, "options": { "dataLocationOnSheet": { "values": { "rangeDefinition": "detectAutomatically" } } } }, "type": "n8n-nodes-base.googleSheetsTool", "typeVersion": 4.7, "position": [ 336, 576 ], "name": "property_listings", "credentials": { "googleSheetsOAuth2Api": { "name": "" } } }, { "parameters": { "chatId": "={{ $('Telegram Trigger').first().json.message.chat.id }}", "text": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Text', ``, 'string') }}", "additionalFields": { "appendAttribution": false } }, "type": "n8n-nodes-base.telegramTool", "typeVersion": 1.2, "position": [ 464, 576 ], "name": "send_message", "credentials": { "telegramApi": { "name": "" } } }, { "parameters": { "operation": "sendMediaGroup", "chatId": "={{ $('Telegram Trigger').first().json.message.chat.id }}", "media": { "media": [ { "media": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('media0_Media_File', `The first image URL of the property requested for`, 'string') }}", "additionalFields": {} }, { "media": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('media1_Media_File', `The second image URL of the property requested for`, 'string') }}", "additionalFields": {} } ] }, "additionalFields": {} }, "type": "n8n-nodes-base.telegramTool", "typeVersion": 1.2, "position": [ 608, 576 ], "name": "send_property_image", "credentials": { "telegramApi": { "name": "" } } }, { "parameters": { "sendTo": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('To', ``, 'string') }}", "subject": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Subject', ``, 'string') }}", "message": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Message', ``, 'string') }}", "options": { "appendAttribution": false } }, "type": "n8n-nodes-base.gmailTool", "typeVersion": 2.2, "position": [ 768, 576 ], "name": "email_lead", "credentials": { "gmailOAuth2": { "name": "" } } }, { "parameters": {}, "type": "n8n-nodes-base.noOp", "typeVersion": 1, "position": [ 560, 48 ], "name": "No Operation, do nothing" } ], "connections": { "Download file": { "main": [ [ { "node": "Supabase Vector Store", "type": "main", "index": 0 } ] ] }, "When new company file is uploaded": { "main": [ [ { "node": "Download file", "type": "main", "index": 0 } ] ] }, "Chunk file": { "ai_document": [ [ { "node": "Supabase Vector Store", "type": "ai_document", "index": 0 } ] ] }, "Simple Memory": { "ai_memory": [ [ { "node": "AI Agent", "type": "ai_memory", "index": 0 } ] ] }, "knowledge_base": { "ai_tool": [ [ { "node": "AI Agent", "type": "ai_tool", "index": 0 } ] ] }, "crm": { "ai_tool": [ [ { "node": "AI Agent", "type": "ai_tool", "index": 0 } ] ] }, "check_availability": { "ai_tool": [ [ { "node": "AI Agent", "type": "ai_tool", "index": 0 } ] ] }, "schedule_inspection": { "ai_tool": [ [ { "node": "AI Agent", "type": "ai_tool", "index": 0 } ] ] }, "Embeddings OpenAI": { "ai_embedding": [ [ { "node": "Supabase Vector Store", "type": "ai_embedding", "index": 0 }, { "node": "knowledge_base", "type": "ai_embedding", "index": 0 } ] ] }, "OpenAI Chat Model": { "ai_languageModel": [ [ { "node": "AI Agent", "type": "ai_languageModel", "index": 0 } ] ] }, "Telegram Trigger": { "main": [ [ { "node": "Does text message exist?", "type": "main", "index": 0 } ] ] }, "Does text message exist?": { "main": [ [ { "node": "standardize text to match audio file json", "type": "main", "index": 0 } ], [ { "node": "Download voice note", "type": "main", "index": 0 } ] ] }, "Download voice note": { "main": [ [ { "node": "convert audio file from .oga to ogg", "type": "main", "index": 0 } ] ] }, "convert audio file from .oga to ogg": { "main": [ [ { "node": "transcribe audio", "type": "main", "index": 0 } ] ] }, "standardize text to match audio file json": { "main": [ [ { "node": "AI Agent", "type": "main", "index": 0 } ] ] }, "transcribe audio": { "main": [ [ { "node": "AI Agent", "type": "main", "index": 0 } ] ] }, "property_listings": { "ai_tool": [ [ { "node": "AI Agent", "type": "ai_tool", "index": 0 } ] ] }, "send_message": { "ai_tool": [ [ { "node": "AI Agent", "type": "ai_tool", "index": 0 } ] ] }, "send_property_image": { "ai_tool": [ [ { "node": "AI Agent", "type": "ai_tool", "index": 0 } ] ] }, "email_lead": { "ai_tool": [ [ { "node": "AI Agent", "type": "ai_tool", "index": 0 } ] ] }, "AI Agent": { "main": [ [ { "node": "No Operation, do nothing", "type": "main", "index": 0 } ] ] } }, "active": true, "settings": { "executionOrder": "v1", "binaryMode": "separate", "availableInMCP": false }, "meta": { "templateCredsSetupCompleted": true }, "tags": [] }