yaboi_api | Stripe Developers | Page 1

lethal relicBOT Oct 1, 2025, 11:01 PM

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tribal sleet Oct 1, 2025, 11:05 PM

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import StripeTerminal
import SwiftUI

@Observable
class LocalReaderController {
    func connectTapToPay(_ reader: Reader) throws {
        #if DEBUG
            let locationId = "XXXXXXXX"
        #else
            let locationId = "XXXXXXXX"
        #endif
        let connectionConfig = try TapToPayConnectionConfigurationBuilder(
            delegate: ReaderDelegate(),
            locationId: locationId
         )
        .setAutoReconnectOnUnexpectedDisconnect(true)
        .build()
        
        Terminal.shared.connectReader(
            reader,
            connectionConfig: connectionConfig
        ) { reader, error in
            if let reader = reader {
                print("[STRIPE] Successfully connected to reader: \(reader)")
            } else if let error = error {
                print("[STRIPE] connectLocalMobileReader failed: \(error)")
            } else {
                print("[STRIPE] No error returned, but also no reader...")
            }
        }
    }
}

This is the connection function

copper cairn Oct 1, 2025, 11:07 PM

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Hi 👋

Where does this error get thrown. When you call the connectToReader function?

tribal sleet Oct 1, 2025, 11:08 PM

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yes, it's throwing in

Terminal.shared.connectReader(
            reader,
            connectionConfig: connectionConfig
        ) { reader, error in
            if let reader = reader {
                print("[STRIPE] Successfully connected to reader: \(reader)")
            } else if let error = error {
                print("[STRIPE] connectLocalMobileReader failed: \(error)") // HERE
            } else {
                print("[STRIPE] No error returned, but also no reader...")
            }
        }

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well, obviously it's not throwing there, it's printing there, it's throwing in the connectReader()

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this is the tutorial code. It has 2 errors:
Value of type 'TapToPayConnectionConfigurationBuilder' has no member 'delegate'

Missing argument for parameter 'delegate' in call

copper cairn Oct 1, 2025, 11:13 PM

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I'm not sure which tutorial you are referring to here

tribal sleet Oct 1, 2025, 11:13 PM

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https://docs.stripe.com/terminal/payments/connect-reader?terminal-sdk-platform=ios&reader-type=tap-to-pay#connect-reader

Connect to a reader

Connect your application to a Stripe Terminal reader.

copper cairn Oct 1, 2025, 11:24 PM

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Okay so trying to track down the wording in the error. I'm not seeing anything jumping out at me

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But you are saying you could not add a delegate using the method outlined in the doc?

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Can you share what version of the SDK you are using?

tribal sleet Oct 1, 2025, 11:26 PM

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I can’t add it via .delegate.
It forces me to put in in the init params.

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And I’m using the newest version of the SDK upgrading in a new app whereas my previous iteration was using one from November 2022 so that’s pretty old

copper cairn Oct 1, 2025, 11:28 PM

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Can you please provide specific version numbers

tribal sleet Oct 1, 2025, 11:29 PM

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Yeah gimme a sec to check

copper cairn Oct 1, 2025, 11:30 PM

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Great, thanks!

tribal sleet Oct 1, 2025, 11:35 PM

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Version 4.7.2

copper cairn Oct 1, 2025, 11:44 PM

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Okay thank you.

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I'm looking for this error text and any existing GH Issues for this part of the SDK

tribal sleet Oct 1, 2025, 11:52 PM

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Is there potentially a safer version I should try dropping back to?

copper cairn Oct 1, 2025, 11:55 PM

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Well I haven't found anything about this issue that suggests it's version related. Was your TTP app working in an earlier version?

tribal sleet Oct 1, 2025, 11:57 PM

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Kind of…

Technically this is a “new” integration, but really it’s a rewrite of an existing app that, yes, was working with TTP. But that one was one the 2022 SDK version (sorry don’t have version number) so idk how relevant that one will be other than to say it’s not my phone.

copper cairn Oct 1, 2025, 11:58 PM

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And are you re-writing the reader discovery/connection or has that code remained the same?

tribal sleet Oct 2, 2025, 12:00 AM

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Enough of its rewritten to say it’s rewritten at this point.

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Thank you for the help btw. Really appreciate that you guys do this.

lethal relicBOT Oct 2, 2025, 12:06 AM

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sturdy vault Oct 2, 2025, 12:10 AM

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hello! taking over from snufkin, but give us a while to get back to you as we're currently in a meeting!

tribal sleet Oct 2, 2025, 12:11 AM

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No worries, I appreciate all the help

vague kraken Oct 2, 2025, 12:22 AM

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Hi @tribal sleet Can you share with me the code you wrote for creating the connectionConfig? I want to see if you implemented TapToPayReaderDelegate

tribal sleet Oct 2, 2025, 12:25 AM

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let connectionConfig = try TapToPayConnectionConfigurationBuilder(
            delegate: ReaderDelegate(),
            locationId: locationId
         )
        .setAutoReconnectOnUnexpectedDisconnect(true)
        .build()

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📎 message.txt

vague kraken Oct 2, 2025, 12:32 AM

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Are you also using the latest Stripe Terminal iOS SDK?

tribal sleet Oct 2, 2025, 12:33 AM

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yes.

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actually, my web sdk is likely way out of date. would that matter if it's returning a valid token?

vague kraken Oct 2, 2025, 12:34 AM

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What web sdk do you refer to?

tribal sleet Oct 2, 2025, 12:34 AM

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whatever is on the server kicking out the stripetoken. (ie the one I haven't looked at since I wrote it 3+ years ago)

vague kraken Oct 2, 2025, 12:35 AM

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by stripe token, do you mean connection tokens?

tribal sleet Oct 2, 2025, 12:37 AM

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yes

vague kraken Oct 2, 2025, 12:42 AM

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Ok, the error that you encountered occurs when reaeer delegate is missing. Can you double check your Stripe Terminal iOS SDK and see if it's the latest verison (i.e., 4.7.2)

tribal sleet Oct 2, 2025, 12:43 AM

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It is. Should there be a class that is explicitly conforming to ReaderDelegate?

vague kraken Oct 2, 2025, 12:43 AM

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Can you DM me the xcode project so that I can run and reproduce the issue?

tribal sleet Oct 2, 2025, 12:44 AM

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yes, let me package it

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sent.

vague kraken Oct 2, 2025, 1:05 AM

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Received. Let me try to run it

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Hi @tribal sleet Looks like I need a login credential to use you app.

Anyway I'm able to use TapToPayConnectionConfigurationBuilder.init in your project. Here's my code

        let connectionConfig = try TapToPayConnectionConfigurationBuilder
            .init(delegate: LocalReaderDelegate(), locationId: locationId)
            .setAutoReconnectOnUnexpectedDisconnect(true)
            .build()
        ````

tribal sleet Oct 2, 2025, 1:18 AM

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I think that’s the same connectionConfig I’m already using. Let me make a quick user.

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Ok, really easy one:

example@example.com
password: example

vague kraken Oct 2, 2025, 1:22 AM

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Getting couldn't sign in error

tribal sleet Oct 2, 2025, 1:23 AM

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Oh, I think I need to add that uid to a valid user. One moment

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Should work now. You’re me now.

vague kraken Oct 2, 2025, 1:24 AM

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11.11.0 - [FirebaseAuth][I-AUT000018] Error getting App Check token; using placeholder token instead. Error: Error Domain=com.google.app_check_core Code=4 "The attestation provider DeviceCheckProvider is not supported on current platform and OS version." UserInfo={NSLocalizedFailureReason=The attestation provider DeviceCheckProvider is not supported on current platform and OS version.}
[AUTH][ERROR] AUTHKIT ERROR: The supplied auth credential is malformed or has expired.```

tribal sleet Oct 2, 2025, 1:25 AM

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Hmmm. Ok, I’m not 100% sure how to fix that. If you’re getting even that far though, the call is actually made in the AppDelegate so you should be seeing logs from it already.

vague kraken Oct 2, 2025, 1:32 AM

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Ok, let me dig further. I'll let you know if I find anything

vague kraken Oct 2, 2025, 1:55 AM

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I'm having some problems in getting TapToPay working in my iOS phone due to provisioning profile issue, and iOS simulator doesn't support TapToPay.

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Can I suggest you to write in so that we can continue helping you through emails?

lethal relicBOT Oct 2, 2025, 1:55 AM

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Hello @tribal sleet, we have sent you a direct message, please check it at https://discord.com/channels/@me/1423126332979806330

🔗The message has instructions on how to open a direct support case with our Developer Support team, in order to help you more effectively.

vague kraken Oct 2, 2025, 1:56 AM

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You'll receive a link in your DM, you can click on the link to create a support case with Stripe support.

tribal sleet Oct 2, 2025, 1:56 AM

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thank you so much

tribal sleet Oct 2, 2025, 2:57 AM

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UPDATE: This is fixed. I do not really know why this fixed it, but it did. Instead of building the TapToPayConnectionConfiguration in the same function as the reader connection, I moved it inside of the TerminalDelegate class which houses a shared instance of each of the delegates, etc and passed that copy into the config, then passed that config to the reader connection.

I then tried moving it back to its original class, but passed in the shared LocalReaderDelegate and building the config from there, which again, worked.

It seems that Terminal realizes when there are multiple instances of a LocalReaderDelegate in use and throws that error when one of them is attempting use. Certainly not the most obvious error!

Thank you @vague kraken. @sturdy vault, and @copper cairn for all of your help tonight, it's greatly appreciated.

sturdy vault Oct 2, 2025, 3:01 AM

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yay! great that it's fixed and thanks for sharing how you fixed it!

#yaboi_api

Hello @tribal sleet, we have sent you a direct message, please check it at https://discord.com/channels/@me/1423126332979806330