mattiaferrari_code | Stripe Developers | Page 1

sage lindenBOT Jun 25, 2025, 9:01 AM

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mattiaferrari_code, 1 day ago, 49 messages

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slender spruce Jun 25, 2025, 9:01 AM

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The code that creates the exception is this

    public void discoverReaderAndConnectHandoff() {
        Terminal instance = Terminal.getInstance();

        instance.discoverReaders(
            new DiscoveryConfiguration.HandoffDiscoveryConfiguration(),
            new CustomDiscoveryListener(reader -> {
                instance.connectReader(
                    reader,
                    new ConnectionConfiguration.HandoffConnectionConfiguration(
                        new HandoffReaderListener() {
                            @Override
                            public void onDisconnect(@NonNull DisconnectReason reason) {
                                HandoffReaderListener.super.onDisconnect(reason);
                            }
                        }
                    ),
                    new ReaderCallback() {
                        @Override
                        public void onSuccess(@NonNull Reader reader) {
                            System.out.println("FATTO " + reader.toString());
                        }

                        @Override
                        public void onFailure(@NonNull TerminalException e) {

                        }
                    }
                );
            }),
            new com.stripe.stripeterminal.external.callable.Callback() {
                @Override
                public void onSuccess() {
                    System.out.println("SUCCESS");
                }

                @Override
                public void onFailure(@NonNull TerminalException e) {
                    System.out.println(e.getMessage());
                }
            }
        );
    }

sage lindenBOT Jun 25, 2025, 9:02 AM

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slender spruce Jun 25, 2025, 9:02 AM

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after that it seems that the connection still goes through successfully

lofty salmon Jun 25, 2025, 9:02 AM

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👋 Happy to help!

slender spruce Jun 25, 2025, 9:02 AM

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Hi

lofty salmon Jun 25, 2025, 9:03 AM

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What Stripe SDK version are you using ?

slender spruce Jun 25, 2025, 9:03 AM

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4.5.0.

lofty salmon Jun 25, 2025, 9:05 AM

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Are you able to reproduce on our official sample ?
https://github.com/stripe/stripe-terminal-android/tree/master/Example

slender spruce Jun 25, 2025, 9:05 AM

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Is there also an example repo with the actual code to implement correclty? I tried this
https://github.com/stripe-samples/terminal-apps-on-devices
https://github.com/stripe/stripe-terminal-android

but they don't use so much that implementation("com.stripe:stripeterminal-handoffclient:4.5.0")

lofty salmon Jun 25, 2025, 9:05 AM

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What guide are you following exactly between ?

slender spruce Jun 25, 2025, 9:05 AM

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A bit of both

lofty salmon Jun 25, 2025, 9:06 AM

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That's not supposed to work like that, these are two different integration flows...

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You can't have both on the same app

slender spruce Jun 25, 2025, 9:07 AM

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https://docs.stripe.com/terminal/features/apps-on-devices/build

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Well i'm taking every piece of code that can help.

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In majority i followed this

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i did the same thing as here from what i can tell https://docs.stripe.com/terminal/features/apps-on-devices/build

lofty salmon Jun 25, 2025, 9:10 AM

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First what integration you are trying to follow there:
https://docs.stripe.com/terminal/features/apps-on-devices/overview#supported-integrations

slender spruce Jun 25, 2025, 9:10 AM

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app on device with handoff

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Ok sorry

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Point-of-sale app on a Stripe smart reader

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I'm trying out deploying on the s700 devkit

lofty salmon Jun 25, 2025, 9:12 AM

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https://github.com/stripe-samples/terminal-apps-on-devices
Here it uses handoff actually:
https://github.com/stripe-samples/terminal-apps-on-devices/blob/main/app/build.gradle.kts#L67

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What was the missing part of your reproduction ?

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Sorry I need to understand how exactly you are facing this issue

slender spruce Jun 25, 2025, 9:13 AM

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I called initTerminal with this

public void initTerminal(Context context) {
        TerminalListener listener = new TerminalListener() {
            @Override
            public void onConnectionStatusChange(ConnectionStatus status) {
                System.out.printf("onConnectionStatusChange: %s\n", status);
            }

            @Override
            public void onPaymentStatusChange(PaymentStatus status) {
                System.out.printf("onPaymentStatusChange: %s\n ", status);
            }
        };
        
        LogLevel logLevel = LogLevel.VERBOSE;

        // Create your token provider.
        ConnectionTokenProvider tokenProvider = new ConnectionTokenProvider() {
            @Override
            public void fetchConnectionToken(@NonNull ConnectionTokenCallback callback) {
                try {
                    OkHttpClient client = new OkHttpClient();

                    Request request = new Request.Builder()
                        .url("")
                        .post(RequestBody.create(null, new byte[0])) // Empty body
                        .build();

                   // ecc ecc
                    });
                } catch (Exception e) {
                    callback.onFailure(
                        new ConnectionTokenException("Failed to fetch connection token", e));
                }
            }
        };

        try {
            if (!Terminal.isInitialized()) {
                Terminal.initTerminal(context, logLevel, tokenProvider, listener);
            }
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }


    }

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Here it uses handoff actually:
well yes but it isn't imported anywhere

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Maybe i should pass somewhere an instance HandoffRpcCallbackListener

lofty salmon Jun 25, 2025, 9:21 AM

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well yes but it isn't imported anywhere
It is actually:
https://github.com/stripe-samples/terminal-apps-on-devices/blob/main/app/build.gradle.kts#L67

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Could you try remove HandoffReaderListener.super.onDisconnect(reason); from your HandoffReaderListener?

slender spruce Jun 25, 2025, 9:24 AM

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Yeah but the thing that i intended was that if i was supposed to use any of this

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Could you try remove HandoffReaderListener.super.onDisconnect(reason); from your HandoffReaderListener?
Ok let me try

lofty salmon Jun 25, 2025, 9:29 AM

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slender spruce Yeah but the thing that i intended was that if i was supposed to use any of this

No you shouldn't, that's used internally by the SDK I think.

slender spruce Jun 25, 2025, 9:30 AM

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Nope still getting the error

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Let me try deploying the example app to see if i get the error

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Yeah

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This is the logcat from the example app

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The flow still work but i get this error

lofty salmon Jun 25, 2025, 9:37 AM

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Ah wait, so this isn't blocking ? the app doesn't crush ?

slender spruce Jun 25, 2025, 9:38 AM

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Nono i was just wondering

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my integration is a bit wacky so im investigating on every error that i see

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maybe i was missing something that should be integrated

lofty salmon Jun 25, 2025, 9:48 AM

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Well this seems to be just a false alarm...

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And you said that you aren't able to reproduce on our official sample ?
https://github.com/stripe-samples/terminal-apps-on-devices

slender spruce Jun 25, 2025, 10:13 AM

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No

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Wait

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The screenshot above is made using the example app

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The error is print out also in the example app

lofty salmon Jun 25, 2025, 10:25 AM

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Ok then yeah that could be expected then...

#mattiaferrari_code