Flutter HarmonyOS Plugin Development Tutorial (Part 2)

ohpm install @cashier_alipay/cashiersdk

{
  "module": {
    ...
    "querySchemes": ["alipays"]
  }
}

new Pay().pay(orderInfo, true).then((payResult) => {
  const message = `resultStatus: ${payResult.get('resultStatus')} memo: ${payResult.get('memo')} result: ${payResult.get('result')}`;
  console.log("Payment result:", message);
}).catch((error: BusinessError) => {
  console.error("Payment error:", error.message);
});

onMethodCall(call: MethodCall, result: MethodResult): void {
  console.log("onMethodCall ==> ", call.method);
  if (call.method === "getPlatformVersion") {
    result.success("HarmonyOS ^ ^");
  } else if (call.method === "aliPayAuth") {
    const orderInfo = call.args as string;
    console.log("Received order info:", orderInfo);

    new Pay().pay(orderInfo, true).then((payResult) => {
      const response = {
        resultStatus: payResult.get('resultStatus'),
        memo: payResult.get('memo'),
        result: payResult.get('result')
      };
      console.log("Payment response:", response);
      result.success(response);
    }).catch((error) => {
      console.error("Payment failed:", error);
      result.success({ resultStatus: "-1", errorMsg: error.message });
    }).finally(() => {
      console.log("Payment process completed.");
    });
  }
}

String orderInfoString = ""; // Sign data from backend

ExamOhosUtils().aliPayAuth(orderInfoString).then((value) {
  if (value["resultStatus"] == "9000") {
    // Payment success
    Toast.show(context, "Payment successful!");
    goToPaymentSuccess();
    eventBus.fire(RefreshUserCardEvent());
  } else {
    // Payment failed
    Toast.show(context, "Payment failed");
    _retryPayment(orderId);
  }
}).catchError((error) {
  print("Error: $error");
});