Stripe Subscriptions in ASP.NET Web Forms Application built with C# and JavaScript

Receive fixed-price/per-seat subscriptions payments from all cards (credit, debit and prepaid) with Elements or Payment Request Button (Apple Pay, Google Pay, Microsoft Pay, and the browser Payment Request API) via Stripe.

Use Stripe Subscriptions Payment Gateway in ASP.NET with integrating and customizing this application to your ASP.NET Web Application.

Stripe for ASP.NET allows you to accept subscription payments directly on your store for web and mobile web. With Stripe, customers stay on your store for card payments during subscription checkout instead of being redirected to an externally hosted checkout page, which has been proven to lead to higher conversion rates.

Fixed-Price Subscriptions: Charge customers a fixed amount each month. The Quantity is set to 1.

Per-Seat Subscriptions: Charge customers based on how many units of your product or service they purchase. You must set the Quantity variable to the number chosen by your customer.

The application uses the Payment Intents API for cards.

The application uses Stripe Card Element and Stripe Payment Request Button.

The application supports 3D Secure 2.

Full source code is included.

Target Framework: .NET Framework 4.7.2 – Language: c#

Payment Request Button

Stripe Subscriptions in ASP.NET Web Forms Application built with C# and JavaScript - 2

Collect payment and address information from customers who use Apple Pay, Google Pay, Microsoft Pay, and the browser Payment Request API (Chrome, Opera, Edge, Safari).

Customers see a “Pay now” button or an Apple Pay button, depending on what their device and browser combination supports. If neither option is available, they don’t see the button.

To use Apple Pay on Safari, you need to register with Apple all of your web domains that will show an Apple Pay button.

Stripe Google Pay Stripe Apple Pay

Strong Customer Authentication

Strong Customer Authentication (SCA) is a new European regulatory requirement to reduce fraud and make online payments more secure. To accept payments and meet SCA requirements, you need to build additional authentication into your checkout flow.

Banks will need to start declining payments that require SCA and don’t meet these criteria. Although the regulation was introduced on 14 September 2019, we expect these requirements to be enforced by regulators over the course of 2020 and 2021.

3D Secure 2—the new version of the authentication protocol rolling out in 2019—will be the main method for authenticating online card payments and meeting the new SCA requirements. This new version introduces a better user experience that will help minimise some of the friction that authentication adds into the checkout flow.

The application supports 3D Secure 2

The Payment Intents API that uses Stripe’s SCA logic to apply the right exemption and trigger 3D Secure when necessary.

The application uses the Payment Intents API for card payments

How to model subscriptions

Products and Prices are the primary objects used to model subscriptions. Products define what you’re selling and prices define how to charge for the product. For example, if you offer photo hosting for 15 USD a month, photo hosting is your product and the 15 USD a month is your price. Or, maybe you offer physical goods like a weekly produce box for 10 USD per week. The produce box is your product and the 10 USD is your price.

Products can have multiple prices so you can vary pricing by billing interval, currency, or amount. You can also use multiple prices to phase out old prices that you no longer offer.

In a fixed-price model, customers are charged the same amount every billing period. For example, a photo hosting company that offers basic and premium options might have:

One product for the basic option
One product for the premium option
One price for the basic option (15 USD per month)
One price for the premium option (25 USD per month)

In a per-seat model, customers are charged based on the number of seats or units that they purchase. For example, a messaging service that offers basic and premium options might have:

One product for the basic option
One product for the premium option
One price for the basic option that charges the same amount per seat, regardless of the number of seats (5 USD per seat)
One price for the premium option that includes tiers so that the price per-seat goes down the more seats that are purchased (tier one: 15 USD per seat for 1–100 seats, tier two: 10 USD for 101+ seats)

Deploy Stripe while keeping your core product team focused.

Techtolia brings experience working with Stripe’s Payments as well as expertise in Product Development, DevOps, and User Experience to quickly deploy Stripe integrations at scale.

As a partner, we can increase velocity while keeping your core team focused on your product. Partnering with an outside team means that your core product team can prioritize features tied to customer value or competitive differentiation.

Stripe Subscriptions in ASP.NET Web Forms Application built with C# and JavaScript - 3

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