PayPal iOS SDK Demo App

This repository contains a SwiftUI demo app that simulates a real-world merchant application, featuring a store, cart, and checkout process.
The goal of this app is to showcase core features of the PayPal iOS SDK, providing merchants with sample code and implementation patterns to simplify integration.

🚀 Version 1.0 Features

Checkout with PayPal
Seamless PayPal checkout experience
Checkout with Cards

🎯 Purpose This demo app serves as a reference for merchants, aligning with real-world patterns and code structures they are likely to adopt.
By providing a practical and easy-to-follow example, we aim to make PayPal SDK integration smoother and faster for developers.

📂 Project Structure

• Where to find key logic
  If you are just interested in code to implement server side and SDK API calls, you can skip to CardPaymentViewModel or PayPalViewModel

• CheckoutFlow
  SwiftUI view that is the entry point for the checkout process. It sets up the overall navigation structure using a NavigationStack, so users can move from cart checkout and finally OrderCompletion

• CheckoutCoordinator (Navigation and Flow Manager)
  Handles navigation logic and handles loading and error states of flows that do not have a dedicated SwiftUI view (e.g., PayPal Web Checkout)

• CartView
  Displays items in the cart and total amount
  Buttons to initiate Card or PayPalWeb checkout
  Tapping either calls into a CheckoutCoordinator that starts the respective flow

• Card Checkout
  This uses a SwiftUI screen called CardCheckoutView which references a CardPaymentViewModel
  The view model handles network calls for creating order, approving the card and final capture
  When complete, the user is navigated to OrderCompleteView

• PayPal Web Checkout
  No dedicated SwiftUI screen - once triggered, it opens a web flow
  Becuase there is no dedicated PayPal view, we handle loading and errors in a CheckoutCoordinator
  If the user completes the PayPal flow, we capture the order and show OrderCompleteView

🔧 Requirements

Xcode 15.0+ iOS 15.0+ PayPal iOS SDK

🛠 Setup

Clone this repository: bash Copy code git clone https://github.com/paypal-examples/paypal-ios-sdk-demo-app.git cd paypal-ios-sdk-demo-app Open the project in Xcode. Run the app on a simulator or device.