Скачать или смотреть WhatsApp AI Agent using n8n | Full Workflow Tutorial 🤖💬

Ready to build an intelligent WhatsApp bot that processes text, audio, and images and responds using OpenAI? In this step-by-step tutorial, you'll learn how to:

✅ Connect Wassenger with n8n
✅ Use OpenAI to transcribe audio & analyse images
✅ Reply to customers via WhatsApp with text or audio
✅ Upload media to Google Drive for public access
✅ Clean up your storage automatically

🔗 GET STARTED

🔐 Sign up for Wassenger (7-day free trial):
👉 https://wassenger.com/register

🧠 Create your OpenAI API key: https://platform.openai.com/account/a...
⚙️ n8n: https://n8n.io/
📽️ How to connect Google Drive to n8n:    • Set up Google Credentials in n8n in 5 minu...  

🛠️ WORKFLOW STEPS

1. 🚀 Create a New Workflow

In n8n, go to Workflows ➡️ Create Workflow

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2. 🔔 Add Wassenger Trigger

➡️ Module: Wassenger Trigger

🛠️ Trigger Type: On new inbound message
🔌 API Key: https://app.wassenger.com/developers/...
📱 WhatsApp Number: https://app.wassenger.com/device

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3. 🌐 Setup Webhook in Wassenger

➡️ Go to: Wassenger Webhooks

SET UP LIKE THIS:

🖊️ Name: n8n Webhook
🌐 URL: (copy from your n8n Trigger node)
✍️ Number: (Same as above)
🆔 Event: message:in:new

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4. 🧠 Add Switch Node to Detect Message Type

USE THESE EXPRESSIONS:

📝 Text: {{ $json.data.type }}
🔊 Audio: {{ $json.data.media.type }}
🖼️ Image: {{ $json.data.media.type }}

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5. 🧠 Add AI Agent (Custom Prompt)

➡️ Module: SET

🧾 Name: data.body
🔡 Value: {{ $json.data.body }}

➡️ Then send it to: AI Agent (Chat Model)

SYSTEM PROMPT: You are a helpful assistant named Sam. Respond with a friendly and kind tone. You are currently talking to: {{ $('Switch').item.json.data.chat.name }} The current time is: {{ $now.toISO() }}
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6. 🎙️ Transcribe Audio Messages

➡️ Module: Wassenger ➡️ Chat Files ➡️ Get File Details

📲 WhatsApp Number: {{ $json.device.id }}
🆔 File ID: {{ $json.data.media.id }}

➡️ HTTP Module to Download File

1. Method: GET
2. URL: https://api.wassenger.com{{ $('Wassenger Trigger').item.json.data.media.links.download }}
3. Header: Token: YOUR_WASSENGER_API_KEY

➡️ Module: OpenAI ➡️ Transcribe Recording

➡️ SET Module

data.body (String): {{ $json.text }}
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7. 🖼️ Analyze Images

➡️ Same process as audio:

🆔 File ID: {{ $json.data.media.id }}
📩 Download URL: https://api.wassenger.com{{ $('Wassenger Trigger').item.json.data.media.links.download }}

➡️ Module: OpenAI ➡️ Analyze Image

🤖 Model: gpt-4o
🔡 Input: Binary File
🆗 Field Name: data

PROMPT: The user provided the following image and text.

🖼️ Image Description: {{ $json.content }}
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8. 🔁 Response Logic (IF Node)

➡️ Module: IF

Condition: {{ $('Switch').item.json.data.media.type }} is equal to 'audio'
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9. 🔊 Generate Audio Response (OpenAI)

➡️ Model: TTS-1
➡️ Input Text: {{ $('AI Agent').item.json.output }}
🔄 Convert Audio Format to WhatsApp Compatible
➡️ Find the Code Node here (JavaScript):   / create-a-full-featured-whatsapp-ai-chatbot...  

☁️ Upload to Google Drive
➡️ Module: Google Drive ➡️ Upload File

➡️ File Name: {{ $json.fileName }}
➡️ Parent Drive: My Drive
➡️ Parent Folder: (Create one and set sharing to Anyone with the link)
➡️ Get public link: {{ $json.webContentLink }}
📤 Send Audio via Wassenger
➡️ Module: Wassenger ➡️ Send Multimedia Message

WhatsApp Number: (Your Number)

➡️ Recipient: {{ $('Switch').item.json.data.fromNumber }}
➡️ File URL: {{ $json.webContentLink }}
🧹 (Optional) Delete File from Google Drive
➡️ Module: Google Drive ➡️ Delete File
➡️ File ID: {{ $('Google Drive').item.json.id }}
💬 Send Text Response
➡️ Module: Wassenger ➡️ Send Text Message

➡️ Recipient: {{ $('Wassenger Trigger').item.json.data.fromNumber }}
➡️ Message: {{ $json.output }}

🧪 Time to Test!
➡️ Send a text, audio, or image to your connected WhatsApp number.

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💡 Pro Tips
✅ Always test with Test Step in n8n
✅ Use folders in Drive with public access
✅ Add error handling for missing data
✅ Use Context Memory node for smarter AI memory

If this helped you, please 👍 like the video, 💬 comment your use case, and 🔁 share this with your team!

🔗 Useful Links
Wassenger Docs: https://app.wassenger.com/docs

API Tester: https://app.wassenger.com/help/api-te...

API Examples: https://app.wassenger.com/help/api-ex...

n8n Docs: https://docs.n8n.io/

OpenAI API: https://platform.openai.com/

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