cktap_transport 0.1.0

Contains an interface for NFC operations when using the cktap_protocol plugin

NFC Transport Interface for the Coinkite Tap Protocol

Provides an interface for the cktap_protocol plugin to perform NFC operations. Using a separate package allows the protocol to be decoupled from specific NFC plugins. It also means the user can provide their own implementation if desired.

Features

• Transport base class
• TransportException base class

Getting Started

Add one of the following dependencies to your pubspec.yaml:

dependencies:
  # Only when implementing your own transport class
  cktap_transport: ^0.0.1

  # An implementation using the nfc_manager plugin
  cktap_transport_nfc_manager: ^0.0.1

Usage

Here's an example of implementing your own transport function:

import 'dart:typed_data';

import 'package:cktap_transport/cktap_transport.dart';

/// Implement the sendBytes function
class MyTransport extends Transport {
  @override
  Future<Uint8List> sendBytes(Uint8List bytes) async {
    try {
      // Send data here and return the response as bytes
    }
    catch (_) {
      throw const MyTransportException();
    }
  }
}

/// Create an exception
class MyTransportException implements TransportException {
  const MyTransportException();

  @override
  String toString() => "blah";
}

Additional Information

Concrete implementations exist for the following plugins:

• nfc_manager v3.3.0
  • Available here: https://pub.dev/packages/cktap_transport_nfc_manager
  • A rewrite will be required for v4.0.0 as it introduces a completely different API