To launch the checkout, follow these steps:
  1. From your server, call the Create Checkout Session API to create a checkout session.
    Make this API call from your server to ensure session integrity and security. Never invoke this endpoint from your client-side code.
  2. After receiving the API response on your server, extract the relevant values and pass them to the openCheckout method on the client:
    ParameterDescription
    checkoutSessionTokenA unique token to identify and validate the checkout session.
    purchaseIdID to track the purchase.
    urlThe base URL of the Appcharge checkout page.
    ACBridgeAPI.openCheckout(
    sessionToken: "SESSION_TOKEN",
    purchaseId: "SESSION_PURCHASE_ID",
    url: "CHECKOUT_URL"
)
  3. Configure how the checkout page is opened by setting the useExternalBrowser flag:

    ​
    External browser

    • Set useExternalBrowser = true to open the checkout in the device’s default browser. This flow will use the redirectUrl provided in the initialization to return back to the app.

    ​
    Non-external browser (default)

    • When useExternalBrowser = false, the checkout opens in the device’s internal browser or SFSafariViewController. This flow will use the url schema provided in the plist file to return back to the app.
    For more information, see Sell Outside IAP.