by Lazy Sloth
Cancel Stripe Subscription using API
import os
import uvicorn
from fastapi import FastAPI
from pydantic import BaseModel
app = FastAPI()
class Item(BaseModel):
type: str
@app.post("/webhook")
async def read_item(item: Item):
#pulls Stripe event data
if item.type == 'customer.subscription.deleted':
print(item.json())
return item
if __name__ == "__main__":
uvicorn.run(app, host="0.0.0.0", port=8080)
Frequently Asked Questions
What business problem does this Cancel Stripe Subscription using API template solve?
This template addresses the need for businesses to automatically handle subscription cancellations in real-time. When a customer cancels their subscription through Stripe, this API immediately receives the cancellation event, allowing businesses to quickly respond by updating their database, revoking access to services, or triggering customer retention processes.
How can this template be extended for better customer retention?
The Cancel Stripe Subscription using API template can be enhanced to implement customer retention strategies. For example, you could add logic to send a personalized email to the customer offering a discount or alternative plan. You could also trigger a notification to your customer success team to reach out personally. The template provides a foundation for these extensions.
What industries or types of businesses would benefit most from using this template?
This Cancel Stripe Subscription using API template is particularly useful for SaaS companies, subscription-based services, online content providers, and any business that uses Stripe for recurring payments. It's especially valuable for companies with a high volume of subscriptions where manual handling of cancellations would be time-consuming and error-prone.
How can I modify the template to handle multiple Stripe event types?
You can extend the if
statement in the read_item
function to handle multiple event types. Here's an example:
python
@app.post("/webhook")
async def read_item(item: Item):
if item.type == 'customer.subscription.deleted':
print("Subscription cancelled:", item.json())
# Add cancellation logic here
elif item.type == 'customer.subscription.created':
print("New subscription:", item.json())
# Add new subscription logic here
elif item.type == 'invoice.payment_failed':
print("Payment failed:", item.json())
# Add payment failure logic here
return item
This modification allows the Cancel Stripe Subscription using API template to handle various Stripe events, making it more versatile for different business needs.
How can I ensure the security of the webhook endpoint in this template?
To secure the webhook endpoint in the Cancel Stripe Subscription using API template, you should implement Stripe signature verification. This prevents unauthorized access to your webhook. Here's how you can modify the code to include this:
```python from fastapi import FastAPI, Request, HTTPException from stripe import Webhook, error as StripeError import os
app = FastAPI() stripe.api_key = os.getenv('STRIPE_SECRET_KEY') webhook_secret = os.getenv('STRIPE_WEBHOOK_SECRET')
@app.post("/webhook") async def read_item(request: Request): payload = await request.body() sig_header = request.headers.get('stripe-signature')
try:
event = Webhook.construct_event(
payload, sig_header, webhook_secret
)
except ValueError as e:
raise HTTPException(status_code=400, detail="Invalid payload")
except StripeError.SignatureVerificationError as e:
raise HTTPException(status_code=400, detail="Invalid signature")
if event['type'] == 'customer.subscription.deleted':
print("Subscription cancelled:", event)
# Add cancellation logic here
return {"success": True}
```
This enhancement adds a layer of security to your Cancel Stripe Subscription using API template by verifying that the incoming webhook is actually from Stripe.
Created: | Last Updated:
Introduction to the Cancel Stripe Subscription using API Template
Welcome to the step-by-step guide on how to use the "Cancel Stripe Subscription using API" template on Lazy. This template is designed to help you set up a webhook listener that reacts to Stripe subscription cancellation events. When a subscription is canceled in Stripe, this app will capture the event data and print it out, which can be a starting point for further actions such as updating a database, sending notifications, or revoking customer access.
Clicking Start with this Template
To begin using this template, simply click on the "Start with this Template" button on the Lazy platform. This will pre-populate the code in the Lazy Builder interface, so you won't need to copy, paste, or delete any code.
Test: Pressing the Test Button
Once you have the template loaded, press the "Test" button to start the deployment of the app. The Lazy CLI will launch, and the app will be deployed without you having to worry about installing libraries or setting up the environment.
Using the App
After pressing the "Test" button and deploying the app, Lazy will provide you with a dedicated server link. This link is where the Stripe webhook should send events to. Additionally, since the app uses FastAPI, you will also receive a link to the FastAPI documentation, which includes interactive API documentation.
To use the app, you'll need to set up a webhook in Stripe to point to the server link provided by Lazy. Here's how to do that:
1. Log in to your Stripe dashboard. 2. Navigate to the "Developers" section and click on "Webhooks". 3. Click on "Add endpoint" and enter the server link provided by Lazy. 4. Select the "customer.subscription.deleted" event. 5. Click "Add endpoint" to save the webhook.
Now, whenever a customer subscription is deleted in Stripe, the event data will be sent to your app, and the app will print the data.
Integrating the App
After setting up the webhook in Stripe, you may want to integrate the app further into your service or frontend. Depending on your needs, you might:
- Add functionality to update a database with the cancellation event. - Send a notification to an administrator or the customer. - Disable access for the customer in your system.
For these integrations, you may need to modify the code to perform additional actions based on the event data received. If you need to add this functionality, consider the following sample code as a starting point:
@app.post("/webhook")
async def read_item(item: Item):
# Pulls Stripe event data
if item.type == 'customer.subscription.deleted':
# Here you can add your custom integration logic
# For example, update a database, send a notification, etc.
print(item.json())
return item
Remember, any modifications to the code can be done directly within the Lazy Builder interface.
By following these steps, you should now have a functional webhook listener for Stripe subscription cancellations, ready to be integrated with your additional business logic.
Here are 5 key business benefits for this template:
Template Benefits
-
Real-time Subscription Management: Instantly react to subscription cancellations, allowing businesses to update their systems and customer records in real-time.
-
Improved Customer Service: Quickly process cancellations and trigger follow-up actions, such as sending confirmation emails or initiating win-back campaigns.
-
Automated Workflow Integration: Easily integrate with other business systems to automate tasks like access revocation or billing adjustments upon subscription cancellation.
-
Enhanced Data Analytics: Capture and log cancellation data for analysis, helping businesses understand churn patterns and improve retention strategies.
-
Scalable Infrastructure: Built on FastAPI, this template provides a robust foundation for handling high volumes of webhook events, ensuring reliability as the business grows.