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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 client-side code.
  2. After receiving the API response on your server, extract the values from the session object: 
    {
    "checkoutSessionToken": "session_token_identifier",
    "purchaseId": "pr_purchase_id",
    "url": "https://checkout-v2-sandbox.appcharge.com",
    "parsedUrl": "https://checkout-v2-sandbox.appcharge.com/session_token_identifier#boot=checkout_boot_data"
}
    ParameterDescription
    checkoutSessionTokenA unique token to identify and validate the checkout session.
    purchaseIdID to track the purchase.
    urlThe base URL of the Appcharge checkout page.
    parsedUrlThe base URL with data configurations.
  3. Use the values returned in the checkout session response to open the checkout on the client. Depending on your integration version, use one of the following methods:

    This method is deprecated and should not be used for new implementations.
    Use the following values from the session response:
    BridgeAPI.openCheckout(
    sessionToken: "CHECKOUT_SESSION_TOKEN",
    purchaseId: "PURCHASE_ID",
    url: "URL"
)
    The session response values must be passed exactly as received. Modifying them may result in the checkout failing to load.
  4. You can also configure how the checkout page is opened (optional): 
    // Open the checkout in the device’s default browser
BridgeAPI.setBrowserMode("external")

// Open the checkout with an internal custom Chrome tab
BridgeAPI.setBrowserMode("cct")

// Open the checkout with an internal Trusted Web Activity
BridgeAPI.setBrowserMode("twa") // <-- Default
    Running the checkout in an external browser may cause inconsistent behavior across devices and Android versions, including session loss, incomplete transactions, or app unexpected lifecycle behavior.