I have a use case called “RegisterDeviceUseCase” with a function “execute()”.
I want this function to call a bluetooth adapter to get some information from the peripheral, and with the result, call a rest api and make execute() return the result from the rest call.

Something like:

suspend fun execute(): RestResult {
        val bluetoothData = bluetoothAdapter.getData() //<-- wrong, getData() can't return anything

        val restResult = api.call(bluetoothData)
        
        return restResult
    }

The problem is that the operations from the bluetoothAdapter are callback-based apis, and I can’t directly get a result from the methods, i will get them in the bluetooth callback:

class BluetoothAdapter {

        fun getData() {
            bluetooth.sendRequest()
        }

        private val gattCallback = object : BluetoothGattCallback() {
            
            fun onDataReceived(data: Data){
                //response received here, send this to usecase "execute" method
            }

            .
            .
            .
            
            //more callback methods

        }

    }

Is there a way to call the bluetoothadapter, wait for the response in the callback and then make the rest call with it?

I know there is callbackFlow but I think it only works with one-method callbacks, which is not the case with the bluetooth callback.

Maybe getData() could return a flow and I could collect the result in the usecase, but at some point I would need to stop collecting, since I don’t want the use case to be collecting forever and I don’t know if that’s possible.

Thanks!