AliPay+ via Onerway: Headless Guide

Before you begin

This guide assumes that you know how to:

Initialize Headless Universal Checkout

Accept payments with AliPay+ via Onerway

Prepare the client session

AliPay+ via Onerway requires the following data to process a payment successfully. Pass the following data in the client session, or in the payment request (for manual payment creation).

Parameter Name	Required	Description
currencyCode	✓	3-letter currency code in ISO 4217 format, e.g. `USD` for US dollars
order ↳ lineItems	✓	Details of the line items of the order

Prepare the SDK for payments

Handle payment method

AliPay+ via Onerway requires instance of Redirect Manager in order to be presented to the user:

Typescript

const manager = await headless.createPaymentMethodManager('PACYPAY_ALIPAY_PLUS')

PACYPAY_ALIPAY_PLUS must be returned as PaymentMethod.type in the onAvailablePaymentMethodsLoad callback.

When the user has selected the payment method, call the start function. This function automatically:

opens a popup to present a loading indicator, then the payment method web page
shows an overlay on top of your page that prompts the user to focus on the popup

Typescript

myButton.addEventListener('click', () => {
    manager.start()
})

Handle payment method

AliPay+ via Onerway requires instance of Redirect Manager in order to be presented to the user:

Typescript

const manager = await headless.createPaymentMethodManager('PACYPAY_ALIPAY_PLUS')

PACYPAY_ALIPAY_PLUS must be returned as PaymentMethod.type in the onAvailablePaymentMethodsLoad callback.

When the user has selected the payment method, call the start function. This function automatically:

opens a popup to present a loading indicator, then the payment method web page
shows an overlay on top of your page that prompts the user to focus on the popup

Typescript

myButton.addEventListener('click', () => {
    manager.start()
})

Pre-requisites
Handling redirects is required for Payment Methods that present a webpage or open a 3rd party application for the customer to enter their credentials and validate their payment.

To enable this feature, ensure that you include the urlScheme parameter when configuring the PrimerPaymentMethodOptions object.

Set up redirects

SWIFT

let settings = PrimerSettings(
  // ...
  paymentMethodOptions: PrimerPaymentMethodOptions(
    urlScheme: "{url scheme}", // e.g. primer://, yourscheme://
  ),
  // ...
)

Handle redirects
When the user is redirected back to the main app, the function application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool is automatically called by iOS. Make sure to call Primer.shared.application... to forward this information to the SDK so that Universal Checkout can continue the flow.

SWIFT

import PrimerSDK
import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
  // ...
  func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool {
    return Primer.shared.application(application, continue: userActivity, restorationHandler: restorationHandler)
  }
}

Handle payment method

AliPay+ via Onerway requires a Native UI Manager in order to be presented to the user:

SWIFT

// 👇 Create the payment method manager
let nativeUIPaymentMethodManager = try PrimerHeadlessUniversalCheckout.NativeUIManager(paymentMethodType: "PACYPAY_ALIPAY_PLUS")
// 👇 Show the payment method
try nativeUIPaymentMethodManager.showPaymentMethod(intent: .checkout)

Handle payment method

AliPay+ via Onerway requires a Native UI Manager in order to be presented to the user:

KOTLIN

// 👇 Create the payment method manager
val nativeUiManager = PrimerHeadlessUniversalCheckoutNativeUiManager.newInstance("PACYPAY_ALIPAY_PLUS")
// 👇 Show the payment method
nativeUiManager.showPaymentMethod(this, PrimerSessionIntent.CHECKOUT)

Handle payment method
AliPay+ via Onerway requires a Native UI Manager in order to be presented to the user:

Typescript

// 👇 Create the payment method manager
const nativeUIManager = new NativeUIManager()
// 👇 Configure the payment method manager
await nativeUIManager.configure({ paymentMethodType: 'PACYPAY_ALIPAY_PLUS' })
// 👇 Show the payment method
await nativeUIManager.showPaymentMethod(SessionIntent.CHECKOUT)

This code is intended solely for illustrative purposes. As many payment methods share a common approach, it is recommended to centralize the implementation of these methods within your codebase. For a practical demonstration of how to achieve this, please refer to the guide on how to handle Native UI payment methods.

Go live

You don’t need to do anything particular to go live — just make sure to use production credentials.

Payment methods

​Before you begin

​Accept payments with AliPay+ via Onerway

​Prepare the client session

​Prepare the SDK for payments

​Go live

Before you begin

Accept payments with AliPay+ via Onerway

Prepare the client session

Prepare the SDK for payments

Go live