Chatbot WhatsApp piloté par IA prenant en charge le texte, la voix, les images et les PDF (RAG)
Avancé
Ceci est unEngineering, Building Blocks, AIworkflow d'automatisation du domainecontenant 35 nœuds.Utilise principalement des nœuds comme Set, Code, Switch, WhatsApp, GoogleDocs, combinant la technologie d'intelligence artificielle pour une automatisation intelligente. Robot de chat WhatsApp piloté par l'IA prenant en charge le texte, la voix, les images et les PDF (RAG)
Prérequis
- •Peut nécessiter les informations d'identification d'authentification de l'API cible
- •Clé API OpenAI
- •Chaîne de connexion MongoDB
Nœuds utilisés (35)
Aperçu du workflow
Visualisation des connexions entre les nœuds, avec support du zoom et du déplacement
Exporter le workflow
Copiez la configuration JSON suivante dans n8n pour importer et utiliser ce workflow
{
"meta": {
"instanceId": "074f90e2bb5206c5f405a8aac6551497c72005283a5405fb08207b1b3a78c2b8",
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "d1b47f60-5a4d-4629-a18d-b3c6ec0c972c",
"name": "Agent de Base de Connaissances",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
3720,
400
],
"parameters": {
"text": "={{ $json.text }}",
"options": {
"systemMessage": ""
},
"promptType": "define"
},
"typeVersion": 1.9
},
{
"id": "c36731ce-5086-4a2f-8c3a-63be150fb8ae",
"name": "Modèle de Chat OpenAI",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
3720,
580
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "cJRah9hGPQ7eX4jd",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "53c2496a-0737-452c-b49c-ca0afa9c0073",
"name": "Embeddings OpenAI",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
4060,
740
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "cJRah9hGPQ7eX4jd",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "54697b14-28a0-4572-b17e-328a7b52cc90",
"name": "Au clic sur \"Exécuter le Workflow\"",
"type": "n8n-nodes-base.manualTrigger",
"position": [
1380,
-560
],
"parameters": {},
"typeVersion": 1
},
{
"id": "a79b9b58-0211-4570-af84-64db8bef9de3",
"name": "Mémoire Simple",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
3820,
580
],
"parameters": {
"sessionKey": "=memory_{{ $('WhatsApp Trigger').item.json.contacts[0].wa_id }}",
"sessionIdType": "customKey"
},
"typeVersion": 1.3
},
{
"id": "fda97aec-70be-4611-94a3-7816e384c76b",
"name": "Recherche Vectorielle MongoDB",
"type": "@n8n/n8n-nodes-langchain.vectorStoreMongoDBAtlas",
"position": [
3940,
580
],
"parameters": {
"mode": "retrieve-as-tool",
"options": {},
"toolName": "productDocs",
"mongoCollection": {
"__rl": true,
"mode": "list",
"value": "n8n-template",
"cachedResultName": "n8n-template"
},
"toolDescription": "retreive documentation",
"vectorIndexName": "data_index"
},
"credentials": {
"mongoDb": {
"id": "7riubYENUDZsmjyK",
"name": "MongoDB account 2"
}
},
"typeVersion": 1.1
},
{
"id": "8cf54cb6-7247-4036-b1e4-9a28650d700a",
"name": "Chargeur de Sections de Document",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"position": [
1920,
-400
],
"parameters": {
"options": {
"metadata": {
"metadataValues": [
{
"name": "doc_id",
"value": "={{ $json.documentId }}"
}
]
}
},
"jsonData": "={{ $json.content }}",
"jsonMode": "expressionData"
},
"typeVersion": 1
},
{
"id": "4e93e3c3-1847-483a-b6a7-67ff2cff294f",
"name": "Découpeur de Document",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"position": [
1920,
-260
],
"parameters": {
"options": {
"splitCode": "markdown"
},
"chunkSize": 3000,
"chunkOverlap": 200
},
"typeVersion": 1
},
{
"id": "4f616bfc-4ec7-4c88-8a63-cb2c47655680",
"name": "Insertion de Stockage Vectoriel MongoDB",
"type": "@n8n/n8n-nodes-langchain.vectorStoreMongoDBAtlas",
"position": [
1820,
-560
],
"parameters": {
"mode": "insert",
"options": {},
"mongoCollection": {
"__rl": true,
"mode": "list",
"value": "n8n-template",
"cachedResultName": "n8n-template"
},
"vectorIndexName": "data_index"
},
"credentials": {
"mongoDb": {
"id": "7riubYENUDZsmjyK",
"name": "MongoDB account 2"
}
},
"typeVersion": 1.1
},
{
"id": "cc9a0766-69a4-4745-97f5-4c4c5e156c91",
"name": "Générateur d'Embeddings OpenAI",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
1820,
-400
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "cJRah9hGPQ7eX4jd",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "a9368d23-e35f-4986-8060-30a05f3f9c05",
"name": "Importateur de Docs Google",
"type": "n8n-nodes-base.googleDocs",
"position": [
1600,
-560
],
"parameters": {
"operation": "get",
"documentURL": "https://docs.google.com/document/d/1gvgp71e9edob8WLqFIYCdzC7kUq3pLO37VKb-a-vVW4/edit?tab=t.0"
},
"credentials": {
"googleDocsOAuth2Api": {
"id": "FNXMwqMf7vl1WUFj",
"name": "Google Docs account"
}
},
"typeVersion": 2
},
{
"id": "1fb0f8a3-9113-4185-a935-0fc327f70881",
"name": "Note Adhésive",
"type": "n8n-nodes-base.stickyNote",
"position": [
1000,
-580
],
"parameters": {
"color": 5,
"content": "Run this workflow manually to import and index Google Docs product documentation into MongoDB with vector embeddings for fast search."
},
"typeVersion": 1
},
{
"id": "62e13275-6f92-4799-9cbe-e0064ceb5140",
"name": "Note Adhésive1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1000,
360
],
"parameters": {
"color": 4,
"height": 280,
"content": "This workflow listens for WhatsApp messages (text, audio, image, documents), converts them into embeddings, searches MongoDB, and uses GPT-4o-mini to provide context-aware answers with conversation memory."
},
"typeVersion": 1
},
{
"id": "d21fc408-f66d-4b07-972a-811aa420b4ce",
"name": "Note Adhésive2",
"type": "n8n-nodes-base.stickyNote",
"position": [
2220,
-580
],
"parameters": {
"height": 540,
"content": "Search Index Example \n\n{\n \"mappings\": {\n \"dynamic\": false,\n \"fields\": {\n \"_id\": {\n \"type\": \"string\"\n },\n \"text\": {\n \"type\": \"string\"\n },\n \"embedding\": {\n \"type\": \"knnVector\",\n \"dimensions\": 1536,\n \"similarity\": \"cosine\"\n },\n \"source\": {\n \"type\": \"string\"\n },\n \"doc_id\": {\n \"type\": \"string\"\n }\n }\n }\n}\n"
},
"typeVersion": 1
},
{
"id": "ddc0fdb7-bacc-4f41-87bf-48bb714a404d",
"name": "Déclencheur WhatsApp",
"type": "n8n-nodes-base.whatsAppTrigger",
"position": [
1380,
400
],
"webhookId": "ab09ca3e-53b2-4079-9ddc-bccb2f69551b",
"parameters": {
"options": {},
"updates": [
"messages"
]
},
"credentials": {
"whatsAppTriggerApi": {
"id": "eb1MSQfEla9dGghs",
"name": "WhatsApp OAuth account"
}
},
"typeVersion": 1
},
{
"id": "8842d0c7-082e-4b4e-b350-a8bb8f47c390",
"name": "OpenAI",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
2460,
160
],
"parameters": {
"options": {},
"resource": "audio",
"operation": "translate"
},
"credentials": {
"openAiApi": {
"id": "cJRah9hGPQ7eX4jd",
"name": "OpenAi account"
}
},
"typeVersion": 1.8
},
{
"id": "a342dc14-0ffe-41ba-a3e9-853fe043f4fb",
"name": "OpenAI1",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
2460,
400
],
"parameters": {
"modelId": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini",
"cachedResultName": "GPT-4O-MINI"
},
"options": {
"detail": "auto"
},
"resource": "image",
"inputType": "base64",
"operation": "analyze"
},
"credentials": {
"openAiApi": {
"id": "cJRah9hGPQ7eX4jd",
"name": "OpenAi account"
}
},
"typeVersion": 1.8
},
{
"id": "b1220587-fadf-4b5b-944e-b6e60b64c141",
"name": "Extraire depuis PDF",
"type": "n8n-nodes-base.extractFromFile",
"position": [
3060,
860
],
"parameters": {
"options": {},
"operation": "pdf"
},
"typeVersion": 1
},
{
"id": "b02474a0-be6a-4591-a10c-abc2f597a3e6",
"name": "Extraire depuis XLS",
"type": "n8n-nodes-base.extractFromFile",
"position": [
2960,
1060
],
"parameters": {
"options": {},
"operation": "xls"
},
"typeVersion": 1
},
{
"id": "1012f8a7-9fcb-4d80-ad5f-bfaa31eddf7d",
"name": "Extraire depuis XLSX",
"type": "n8n-nodes-base.extractFromFile",
"position": [
2960,
1220
],
"parameters": {
"options": {},
"operation": "xlsx",
"binaryPropertyName": "=data"
},
"typeVersion": 1
},
{
"id": "8891a2eb-16d6-471a-803e-df1789a336f3",
"name": "Map JSON",
"type": "n8n-nodes-base.set",
"position": [
3200,
980
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "72ae0d20-616a-4a65-9b14-53bf53656091",
"name": "data",
"type": "string",
"value": "={{ $json }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "a0920bc7-71bd-4803-bbce-4cef14cac5ee",
"name": "Map des extensions de fichier",
"type": "n8n-nodes-base.code",
"position": [
2420,
740
],
"parameters": {
"jsCode": "let requests = $(\"Download Document\").all()\n\nrequests.forEach((request) => {\n let mime_type = request.json.mime_type\n\n if (\n mime_type === \"text/calendar\" || \n mime_type === \"application/ics\" || \n mime_type === \"text/x-calendar\"\n ) {\n request.json.mime_type = \"mapped/calendar\"\n }\n\n if (\n mime_type === \"application/xml\" || \n mime_type === \"text/xml\") {\n request.json.mime_type = \"mapped/xml\"\n }\n\n if (!mime_type) {\n request.json.mime_type = $('Gets WhatsApp Document Source URL').first().json.mime_type\n }\n})\n\nreturn requests;"
},
"typeVersion": 2
},
{
"id": "77302aa3-6e87-4de6-9ec7-387ddb76fc84",
"name": "Map d'invite document",
"type": "n8n-nodes-base.set",
"position": [
3440,
800
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "da68bcca-a2a6-4676-8649-6fb1b664e44c",
"name": "text",
"type": "string",
"value": "=Parsed text: {{ $json.text || $json.data || $json }}\n\nCaption text: {{ $('Route Types').item.json.messages[0].document.caption }}\n\nMimeType: {{ $('Gets WhatsApp Document Source URL').item.json.mime_type }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "90821e49-c98d-4617-8289-1be6d3aeb087",
"name": "Map d'invite image",
"type": "n8n-nodes-base.set",
"position": [
2680,
400
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "48af2dcc-4ce9-45fc-abfc-54f803930092",
"name": "text",
"type": "string",
"value": "=User image description: {{ $json.content }}\n\nUser image caption: {{ $('Route Types').item.json.messages[0].image.caption }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "cf603f5c-0a6e-4cdd-846b-738ed417daa2",
"name": "Map d'invite texte",
"type": "n8n-nodes-base.set",
"position": [
2020,
-40
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "38aec976-a32c-4b0e-85f4-c90adc16abc9",
"name": "text",
"type": "string",
"value": "={{ $json.messages[0].text.body }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "7727e89d-cf21-4440-ab7f-85594eb1ec44",
"name": "Obtient l'URL source du message vocal WhatsApp",
"type": "n8n-nodes-base.whatsApp",
"position": [
2020,
160
],
"webhookId": "bbe62f3d-8788-49d4-aae6-9e9411446d44",
"parameters": {
"resource": "media",
"operation": "mediaUrlGet",
"mediaGetId": "={{ $json.messages[0].audio.id}}"
},
"credentials": {
"whatsAppApi": {
"id": "HuYOJ00weACKEFR6",
"name": "WhatsApp account"
}
},
"typeVersion": 1
},
{
"id": "08b938a1-d32e-4aa1-958f-bdabd3dfec13",
"name": "Obtient l'URL source de l'image WhatsApp",
"type": "n8n-nodes-base.whatsApp",
"position": [
2020,
400
],
"webhookId": "c2982df4-1d8d-4669-a724-44ae17d11e6c",
"parameters": {
"resource": "media",
"operation": "mediaUrlGet",
"mediaGetId": "={{ $json.messages[0].image.id }}"
},
"credentials": {
"whatsAppApi": {
"id": "HuYOJ00weACKEFR6",
"name": "WhatsApp account"
}
},
"typeVersion": 1
},
{
"id": "d934ce80-cdb0-476d-8896-b8c226086933",
"name": "Obtient l'URL source du document WhatsApp",
"type": "n8n-nodes-base.whatsApp",
"position": [
2020,
740
],
"webhookId": "c2982df4-1d8d-4669-a724-44ae17d11e6c",
"parameters": {
"resource": "media",
"operation": "mediaUrlGet",
"mediaGetId": "={{ $json.messages[0].document.id }}"
},
"credentials": {
"whatsAppApi": {
"id": "HuYOJ00weACKEFR6",
"name": "WhatsApp account"
}
},
"typeVersion": 1
},
{
"id": "aad1b221-0985-43e7-bc0b-312436171abe",
"name": "Télécharger Message Vocal",
"type": "n8n-nodes-base.httpRequest",
"position": [
2240,
160
],
"parameters": {
"url": "={{ $json.url }}",
"options": {},
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "VZo8qdSLzpZ3qRlq",
"name": "Header Auth account"
}
},
"typeVersion": 4.2
},
{
"id": "dfd08bec-9d30-4125-b167-7feaeefd7afa",
"name": "Télécharger Image",
"type": "n8n-nodes-base.httpRequest",
"position": [
2240,
400
],
"parameters": {
"url": "={{ $json.url }}",
"options": {},
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "VZo8qdSLzpZ3qRlq",
"name": "Header Auth account"
}
},
"typeVersion": 4.2
},
{
"id": "ba3d221f-ce5c-4105-82cf-fbd11c2c0e2f",
"name": "Télécharger Document",
"type": "n8n-nodes-base.httpRequest",
"position": [
2240,
740
],
"parameters": {
"url": "={{ $json.url }}",
"options": {
"response": {
"response": {}
}
},
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "VZo8qdSLzpZ3qRlq",
"name": "Header Auth account"
}
},
"typeVersion": 4.2
},
{
"id": "87ecc44f-cc1f-47e0-b995-079230be118d",
"name": "Router les Types",
"type": "n8n-nodes-base.switch",
"position": [
1600,
380
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "Text",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "2fc5c912-629b-4cbe-b5e3-7e3f0651c628",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.messages[0].type }}",
"rightValue": "text"
}
]
},
"renameOutput": true
},
{
"outputKey": "Audio",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "26a3d85c-0815-48ff-85ce-713129a1107c",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.messages[0].type }}",
"rightValue": "audio"
}
]
},
"renameOutput": true
},
{
"outputKey": "Image",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "840b95b8-6559-4fb7-b32c-651451d6d0d2",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.messages[0].type }}",
"rightValue": "image"
}
]
},
"renameOutput": true
},
{
"outputKey": "Document",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "3e7a07f9-b785-450c-8c68-f6b276838503",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.messages[0].type }}",
"rightValue": "document"
}
]
},
"renameOutput": true
}
]
},
"options": {}
},
"typeVersion": 3.2
},
{
"id": "ce3d08ce-4445-4473-90b2-227ba065c4d8",
"name": "Router les Types de Document",
"type": "n8n-nodes-base.switch",
"position": [
2680,
580
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "CSV",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "14e23243-cd44-4cb1-99bd-9e6905d511ad",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.mime_type }}",
"rightValue": "text/csv"
}
]
},
"renameOutput": true
},
{
"outputKey": "HTML",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "6d7616c5-6bdd-47b7-923e-639491d15a4e",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.mime_type }}",
"rightValue": "text/html"
}
]
},
"renameOutput": true
},
{
"outputKey": "Calendar",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "a2174e02-378a-41ff-b269-61f4fc3f1de9",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.mime_type }}",
"rightValue": "=mapped/calendar"
}
]
},
"renameOutput": true
},
{
"outputKey": "RTF",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "f3b406d7-362d-473e-8edd-c3e5f2d9c44c",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.mime_type }}",
"rightValue": "text/rtf"
}
]
},
"renameOutput": true
},
{
"outputKey": "TXT",
"conditions": {
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},
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},
{
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},
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1380
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}Foire aux questions
Comment utiliser ce workflow ?
Copiez le code de configuration JSON ci-dessus, créez un nouveau workflow dans votre instance n8n et sélectionnez "Importer depuis le JSON", collez la configuration et modifiez les paramètres d'authentification selon vos besoins.
Dans quelles scénarios ce workflow est-il adapté ?
Avancé - Ingénierie, Blocs de construction, Intelligence Artificielle
Est-ce payant ?
Ce workflow est entièrement gratuit et peut être utilisé directement. Veuillez noter que les services tiers utilisés dans le workflow (comme l'API OpenAI) peuvent nécessiter un paiement de votre part.
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NovaNode
@thomasgptNovaNode is a software factory building scalable AI for modern businesses. We specialize in omni-channel AI agents that automate customer support, sales, and operations across voice, WhatsApp, email, and chat. We serve both enterprise clients and SMEs, balancing deep integrations with speed and cost-efficiency. By combining automation with adaptability, we help companies scale faster and operate smarter. NovaNode is where AI meets execution.
Liens externes
Voir sur n8n.io →
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