add Cost Subscriptions with Stripe in Django

Integrating Stripe subscriptions into your Django web site includes a number of steps. Right here’s a high-level overview of the method. Please observe that the precise implementation can range based mostly in your particular necessities.

Steps concerned

Signal Up and Set Up Stripe Account

In the event you haven’t already, join a Stripe account at https://stripe.com. When you’ve signed up, you’ll want your API keys: a Publishable Key (for the client-side) and a Secret Key (for server-side interactions).

Set up the Stripe Python Library

Set up the stripe Python library utilizing pip:

pip set up stripe

Create Subscription Plans on Stripe Dashboard

Log in to your Stripe dashboard and create subscription plans (month-to-month, yearly, and many others.) that customers can subscribe to. Observe down the Plan IDs.

Configure Stripe Keys

In your Django undertaking’s settings, add your Stripe API keys:

STRIPE_PUBLISHABLE_KEY = 'your-publishable-key'
STRIPE_SECRET_KEY = 'your-secret-key'

Create Views and Templates

Create views and templates for the subscription movement, together with pages for choosing a subscription plan, dealing with cost particulars, and displaying subscription standing.

Create a Subscription Administration Mannequin

Create a Django mannequin to handle person subscriptions. This may embrace fields like person, subscription_id, plan_id, standing, start_date, end_date, and many others.

Create Subscription Views

Implement views for the subscription movement:

• Show obtainable subscription plans and let customers select.
• Gather cost particulars (utilizing Stripe Parts or Checkout).
• Deal with the subscription creation course of utilizing the Stripe API.

Deal with Webhooks

Stripe sends occasions to your server (webhooks) for essential subscription-related occasions. Implement webhook handlers to deal with occasions like subscription cancellation, renewal, cost failures, and many others.

Defend Views with Person Authentication

Make certain to guard subscription-related views utilizing Django’s authentication system to make sure solely logged-in customers can entry them.

Testing

Check your subscription movement completely in each improvement and testing environments. You should utilize Stripe’s take a look at mode to keep away from actual fees throughout testing.

Safety

Make sure you’re following safety greatest practices, particularly when dealing with delicate knowledge like cost info.

Documentation

Present clear documentation for customers on the way to subscribe, handle their subscriptions, and what to do in case of points.

The above steps present a normal guideline for integrating Stripe subscriptions into your Django web site. It’s essential to seek the advice of the official Stripe documentation as effectively, because it gives detailed info on the API endpoints, authentication, webhooks, and greatest practices.

Stripe API Reference: https://stripe.com/docs/api
Stripe Python Library Documentation: https://stripe.com/docs/api/python

Present me some Python code

Under is an instance of the way you may implement a primary subscription movement utilizing Stripe in a Django undertaking. This instance focuses on the backend code and assumes you’ve arrange the required templates, views, and fashions by yourself.

Make certain to put in the stripe library utilizing pip set up stripe and configure your Stripe API keys in your Django settings earlier than continuing.

import stripe
from django.conf import settings
from django.contrib.auth.decorators import login_required
from django.shortcuts import render, redirect
from django.urls import reverse
from .fashions import Subscription

stripe.api_key = settings.STRIPE_SECRET_KEY

@login_required
def subscription_plans(request):
    # Fetch obtainable subscription plans from Stripe
    plans = stripe.Plan.record()
    return render(request, 'subscriptions/subscription_plans.html', {'plans': plans})

@login_required
def create_subscription(request, plan_id):
    person = request.person
    plan = stripe.Plan.retrieve(plan_id)

    # Create a subscription on Stripe
    subscription = stripe.Subscription.create(
        buyer=person.stripe_customer_id,  # Assuming you retailer buyer IDs
        gadgets=[{'plan': plan.id}],
        payment_behavior='default_incomplete',  # Change based mostly in your necessities
        develop=['latest_invoice.payment_intent']
    )

    # Save subscription particulars to your database
    Subscription.objects.create(
        person=person,
        subscription_id=subscription.id,
        plan_id=plan.id,
        standing=subscription.standing,
        current_period_start=subscription.current_period_start,
        current_period_end=subscription.current_period_end
    )

    return redirect(reverse('subscription_success'))

# webhook_handlers.py
from django.http import HttpResponse
import json
import stripe
from django.conf import settings

stripe.api_key = settings.STRIPE_SECRET_KEY

def handle_subscription_webhook(request):
    payload = request.physique
    occasion = None

    strive:
        occasion = stripe.Occasion.construct_from(
            json.masses(payload), stripe.api_key
        )
    besides ValueError as e:
        # Invalid payload
        return HttpResponse(standing=400)

    # Deal with particular occasions
    if occasion.kind == 'bill.payment_failed':
        # Deal with cost failure
        # Replace person's subscription standing or take vital actions

    return HttpResponse(standing=200)

Please observe that it is a simplified instance. In a real-world state of affairs, you’d have to deal with error circumstances, add correct person authentication, implement webhook safety, deal with cost affirmation, and combine this together with your templates and frontend parts.

Make certain to seek the advice of Stripe’s official documentation for complete info on their API, safety practices, and webhook dealing with: https://stripe.com/docs/api

Another issues

Listed here are some superior issues and suggestions when implementing Stripe subscriptions in your Django undertaking:

Authentication and Person Expertise

• Make the most of Django’s authentication system to handle person accounts and periods.
• Present clear directions and a user-friendly interface for managing subscriptions.
• Implement password-protected account entry and two-factor authentication (2FA) for added safety.

Webhooks and Occasion Dealing with

• Arrange webhook endpoints to obtain and deal with Stripe occasions. Safe your webhook endpoint by verifying the Stripe signature.
• Implement retry and error dealing with for webhook occasions to make sure knowledge consistency.

Subscription Administration

• Enable customers to improve, downgrade, or cancel their subscriptions out of your web site.
• Implement logic to deal with prorated fees when altering subscription plans.

Cost Strategies and Cost Intent

• Implement a cost technique administration system that enables customers so as to add, take away, or replace cost strategies.
• Use Cost Intents when coping with subscription funds to deal with potential authentication necessities.

Bill Administration

• Hold monitor of invoices and bill gadgets in your database for higher record-keeping.
• Enable customers to view and obtain their invoices out of your web site.

Grace Intervals and Dunning Administration

• Implement grace durations for subscription renewals to permit customers a while to replace their cost info.
• Arrange methods for dealing with dunning administration (failed cost restoration).

Localized Pricing and Currencies

• In case your service caters to worldwide clients, think about offering localized pricing and accepting a number of currencies.

Testing and Staging Environments

• Use Stripe’s testing mode and take a look at playing cards for thorough testing of your subscription movement in a staging setting.
• Check numerous eventualities, similar to trial durations, upgrades, downgrades, and cancellations.

Documentation and Assist

• Present detailed documentation for customers relating to subscription administration, billing, and customary points.
• Provide buyer help channels to help customers with subscription-related queries.

Logging and Monitoring

• Implement logging to trace essential actions, errors, and occasions associated to subscriptions.
• Use monitoring instruments to trace the well being of your subscription system and detect anomalies.

Compliance and Authorized Concerns

• Guarantee your subscription setup adheres to related authorized and compliance necessities, similar to GDPR.

Scalability

• Design your subscription system to deal with elevated site visitors and rising person bases.
• Monitor efficiency and scalability as your person base grows.

Safety

• Implement safety greatest practices, similar to enter validation, knowledge sanitization, and avoiding direct entry to delicate endpoints.
• Defend delicate person knowledge utilizing encryption and comply with greatest practices for knowledge safety.