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This video demonstrates how to use the Send Message with WhatsApp FastAPI template.
import logging
from fastapi import FastAPI, Depends, HTTPException
from fastapi.responses import RedirectResponse
from some_get_request_handler import handle_get_endpoint
from some_post_request_handler import handle_post_endpoint, Data
from whatsapp_api_handler import send_whatsapp_message
from pydantic import BaseModel
logger = logging.getLogger(__name__)
logging.basicConfig(level=logging.WARNING)
app = FastAPI()
class WhatsAppMessageRequest(BaseModel):
# No parameters required as per the latest update
pass
@app.post("/send-whatsapp-message/")
def send_message(request: WhatsAppMessageRequest):
try:
response = send_whatsapp_message()
return {"success": True, "response": response}
except HTTPException as e:
logger.error(f"Failed to send WhatsApp message: {e.detail}")Frequently Asked Questions
What are some business applications for this WhatsApp API messaging template?
The Send Message with WhatsApp API template has numerous business applications, including: - Customer support: Sending automated responses or updates to customer inquiries - Order notifications: Informing customers about order status, shipping, or delivery updates - Appointment reminders: Sending automated reminders for upcoming appointments or reservations - Marketing campaigns: Delivering personalized promotional messages or special offers to customers - Feedback collection: Sending follow-up messages to gather customer feedback after a purchase or service
How can this template improve customer engagement for businesses?
The Send Message with WhatsApp API template can significantly enhance customer engagement by: - Providing a direct and personal communication channel through WhatsApp - Enabling real-time, two-way conversations with customers - Offering a familiar and convenient messaging platform that customers already use - Allowing for quick response times, improving customer satisfaction - Facilitating the sending of rich media content like images, videos, and documents
What industries could benefit most from implementing this WhatsApp API messaging solution?
Several industries can benefit from the Send Message with WhatsApp API template, including: - E-commerce: For order updates, abandoned cart reminders, and product recommendations - Healthcare: For appointment reminders, medication alerts, and health tips - Travel and hospitality: For booking confirmations, check-in reminders, and travel updates - Financial services: For transaction notifications, fraud alerts, and account updates - Education: For class schedules, assignment reminders, and important announcements
How can I customize the message template in this WhatsApp API solution?
To customize the message template in the Send Message with WhatsApp API template, you'll need to modify the send_whatsapp_message() function in the whatsapp_api_handler.py file. Here's an example of how you can customize the template:
python
def send_whatsapp_message(template_name, language_code, parameters):
data = {
"messaging_product": "whatsapp",
"to": phone_number,
"type": "template",
"template": {
"name": template_name,
"language": { "code": language_code },
"components": [
{
"type": "body",
"parameters": parameters
}
]
}
}
# ... rest of the function
You can then call this function with custom parameters:
python
send_whatsapp_message("order_update", "en_US", [
{"type": "text", "text": "123456"},
{"type": "text", "text": "In Transit"}
])
How can I handle incoming messages using this WhatsApp API template?
The current Send Message with WhatsApp API template focuses on sending messages, but you can extend it to handle incoming messages by adding a new endpoint. Here's an example of how you could implement this:
```python @app.post("/webhook") async def webhook(request: Request): body = await request.json()
for entry in body['entry']:
for change in entry['changes']:
if change['field'] == 'messages':
for message in change['value']['messages']:
handle_incoming_message(message)
return {"status": "ok"}
def handle_incoming_message(message): # Process the incoming message sender = message['from'] text = message['text']['body'] # Implement your logic here print(f"Received message from {sender}: {text}") ```
Remember to set up a webhook URL in your WhatsApp Business API account and point it to this new endpoint to receive incoming messages.
Created: | Last Updated:
Introduction to the Send Message with WhatsApp API Template
Welcome to the "Send Message with WhatsApp API" template! This template is designed to help you quickly set up an application that can send WhatsApp messages using the WhatsApp API. It's perfect for businesses or individuals who want to automate their WhatsApp communication through a WhatsApp Business Account. The template uses FastAPI to create an endpoint that interacts with the WhatsApp API, allowing you to send templated messages to specified phone numbers.
Getting Started
To begin using this template, simply click on "Start with this Template" on the Lazy platform. This will set up the template in your Lazy Builder interface, and you can start customizing it to fit your needs.
Initial Setup: Adding Environment Secrets
Before you can test and use the application, you need to set up a few environment secrets. These are necessary for the WhatsApp API to authenticate your requests and send messages to the correct phone number. Here's what you need to do:
- Go to the Environment Secrets tab within the Lazy Builder.
- Add the following secrets with their respective values:
WHATSAPP_API_URL: The URL endpoint for the WhatsApp API.WHATSAPP_API_TOKEN: The access token for authenticating with the WhatsApp API.WHATSAPP_PHONE_NUMBER: The phone number to which you want to send messages, in international format.
- To obtain these values, you will need to set up a WhatsApp Business Account and follow the WhatsApp API documentation to generate your API URL and token.
Test: Pressing the Test Button
Once you have set up the environment secrets, you can press the "Test" button on the Lazy platform. This will deploy your app and launch the Lazy CLI. If the template requires any user input, you will be prompted to provide it at this stage.
Using the App
After deployment, Lazy will provide you with a dedicated server link to use the API. You can interact with your new WhatsApp messaging app via this link. Additionally, since the app uses FastAPI, you will also be provided with a "/docs" link where you can see the auto-generated documentation for your API endpoints and test them directly from your browser.
To send a WhatsApp message using the API, you can make a POST request to the "/send-whatsapp-message/" endpoint. The request doesn't require any parameters, as the phone number and message template are already configured in the environment secrets and the code.
Here's a sample request you might make using a tool like curl:
curl -X POST "http://your-server-link/send-whatsapp-message/" -H "accept: application/json" -H "Content-Type: application/json"
And here's a sample response you might receive:
{
"success": true,
"response": {
"messages": [
{
"id": "gBEGkYiEB1VXAglK1e3FZ3A3Dd"
}
]
}
}
Integrating the App
If you wish to integrate this WhatsApp messaging functionality into another service or frontend, you can use the server link provided by Lazy to make API requests from your external tool. Ensure that you handle the authentication and headers as shown in the provided code template.
For example, if you're integrating with a CRM system, you might add the server link as an endpoint in your CRM's webhook settings, allowing you to trigger WhatsApp messages in response to certain events.
Remember, all the heavy lifting is done by Lazy, so you don't need to worry about deployment details or environment setup. Just focus on how you want to use the WhatsApp messaging capability in your application or workflow.
That's it! You're now ready to send WhatsApp messages programmatically using the Lazy platform and the "Send Message with WhatsApp API" template. Happy building!
Here are 5 key business benefits for this WhatsApp API messaging template:
Template Benefits
-
Enhanced Customer Communication: Enables businesses to send instant, personalized messages to customers through WhatsApp, improving engagement and response rates.
-
Automated Notifications: Allows for the automation of important updates, reminders, and alerts, reducing manual workload and ensuring timely communication.
-
Scalable Messaging Solution: Provides a scalable infrastructure for sending messages to a large number of recipients efficiently, supporting business growth.
-
Integration Capabilities: The FastAPI framework allows for easy integration with other business systems and databases, enabling seamless data flow and process automation.
-
Improved Customer Service: Facilitates quick and direct communication with customers, enhancing support capabilities and potentially increasing customer satisfaction and loyalty.
Technologies
Streamline WhatsApp Workflows with Lazy AI: Automate Messaging, Notifications, API Integrations and More
