WhatsApp product catalog bot with PostgreSQL database
Who is this for?
This workflow is designed for businesses or developers who want to integrate product information into a WhatsApp bot and allow users to retrieve details about products from a database.
What problem is this workflow solving?
This workflow automates the process of managing and retrieving product information via WhatsApp, allowing businesses to easily share product details with customers without manual interaction.
What this workflow does
Basis version:
- It adds product data to a Postgres database.
- It enables a WhatsApp bot to retrieve a list of products.
- Users can select a product to receive detailed information about it.
Additional version:
- All features from Basis Version.
- Get a list of product categories.
- Get a list of products in a category.
- Add product to cart.
- Go to the cart or select more products.
- Remove unnecessary items in the cart or clear the entire cart.
- When all the desired items are in the cart, click Buy.
- The bot will send you a payment link.
Setup
-
Create Tables in Postgres DB
- Modify the SQL script to replace "n8n" with your schema name.
- Run the provided SQL script in your database (available in the workflow).
-
Add Credentials
- Add WhatsApp credentials (OAuth, Account).
- Add Postgres credentials to connect the bot to your database.
How to customize this workflow to your needs
- Update the database schema or table structure if you need additional product information.
- Modify the bot interaction to suit your specific product listing and display preferences.
WhatsApp Product Catalog Bot with PostgreSQL Database
This n8n workflow automates a WhatsApp bot that interacts with a PostgreSQL database to retrieve and display product information. It allows users to query a product catalog directly through WhatsApp messages.
What it does
This workflow simplifies customer interaction by providing an automated way to access product details.
- Listens for WhatsApp messages: The workflow is triggered by incoming messages to a configured WhatsApp Business Cloud account.
- Filters messages: It checks if the incoming message contains specific keywords or patterns to determine if it's a product catalog query.
- Queries PostgreSQL: If a product query is detected, it connects to a PostgreSQL database to fetch relevant product information.
- Formats product data: The retrieved product data is then summarized and formatted for a clear response.
- Responds via WhatsApp: Finally, the workflow sends the formatted product information back to the user on WhatsApp.
Prerequisites/Requirements
To use this workflow, you will need:
- WhatsApp Business Cloud Account: Configured and connected to n8n.
- PostgreSQL Database: Access credentials (host, port, database, user, password) for a PostgreSQL database containing your product catalog.
- n8n Instance: A running n8n instance to host and execute the workflow.
Setup/Usage
- Import the workflow: Download the provided JSON and import it into your n8n instance.
- Configure WhatsApp Business Cloud Credentials:
- Add your WhatsApp Business Cloud credentials to n8n.
- Configure the "WhatsApp Trigger" node with your WhatsApp Business Cloud account.
- Configure PostgreSQL Credentials:
- Add your PostgreSQL credentials to n8n.
- Configure the "Postgres" node with your database connection details.
- Customize Logic (Optional):
- Adjust the "If" and "Switch" nodes to modify the message filtering logic and how product queries are interpreted.
- Modify the SQL query in the "Postgres" node to match your database schema and retrieve the desired product fields.
- Update the "Edit Fields" and "Summarize" nodes to format the product information as you want it to appear in the WhatsApp response.
- Activate the workflow: Once configured, activate the workflow to start listening for incoming WhatsApp messages.
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