Future Payment - Setting up Payment Method with Flutter

[sk92129]

Describe the bug
I have my java springboot server create the "create-setup-intent" and returns the clientSecret and customerId.

Here is a snippet of the logs:
I/flutter (19491): url :: http://MyserverIP:8080/payment/create-setup-intent ::
I/flutter (19491): value :: {clientSecret: seti_1QTdC2KKI1hVOxLkYg328iJV_secret_RMLtEVrhFMpLubyXLZgTa2zy6LMT7QY, customerId: cus_RMLtOk04Iyv2Ef}

When the flutter app get this, i was temporarily able to display the payment bottom sheet for a few times.

But now it stopped.

This is now the error that I see as a toast message.

I was using the code from the example "add_payment_method_button.dart" and the related files.
Since my flutter app is using BLOC, I fetch the clientSecret and customerId from the server and pass those two strings into AddPaymentMethodScreenLoader

Here is the mobile version

To Reproduce
Steps to reproduce the behavior:

1. ) I fetch the clientSecret and customerId from my springboot server.
2. ) I pass those two values to the AddPaymentMethodButton class from the example.

Expected behavior
I expect the payment method entry bottom sheet to appear consistently. Now it fails about 99% of the time.

Smartphone / tablet

• Device: Android Pixel Simulator
• OS: API 35
• Package version: flutter
• Flutter version 3.24.5

Additional context
Add any other context about the problem here.

[sk92129]

looking at the clientSecret carefully, it looks like two parts concatenated together.
Is this correct?

seti_1QTdC2KKI1hVOxLkYg328iJV_secret_RMLtEVrhFMpLubyXLZgTa2zy6LMT7QY

I am putting the clientSecret and the customerId into a java POJO object to send back via springboot.

    SetupIntent intent = StripeCustomer.createSetupIntent(stripeApiKey);
    SetupIntentResponse response = new SetupIntentResponse();
    response.setClientSecret(intent.getClientSecret());
    response.setCustomerId(stripeCustomerId);
    return response ;

[remonh87]

Make sure that you use the clientsecret that you get from the backend for your setupintent. Do not use the stripe publishablekey for it

[sk92129]

To confirm that I was doing the correct set up and steps, I went thru your example again.
The example app for iOS and Android for "payment sheet: setup future payments" does not work either.
The android app:

Using LadyBug, and my JDK locally having JDK21, I had to fix Android to work on Android15:

 compileSdk 34

 compileOptions {

•    sourceCompatibility JavaVersion.VERSION_17
  

•    targetCompatibility JavaVersion.VERSION_17
  

•    sourceCompatibility JavaVersion.VERSION_1_8 
  

•    targetCompatibility JavaVersion.VERSION_1_8
  

• }
• kotlinOptions {

•    jvmTarget = JavaVersion.VERSION_1_8 
  

  }

Otherwise, I got this error:
https://stackoverflow.com/questions/79012911/unknown-kotlin-jvm-target-21-flutter-build-error-in-beginner-project

[remonh87]

there is an issue with ladybug currently that we will look into. I had to revert to the previous android studio. I hope to have time to look into it but it will be challenging around the holidays