OhAuth2

OhAuth2 is a Flutter library for the industry-standard protocol for authorization.

Disclaimer: This library has been tested with a few services like Reddit and Strava. If you find OhAuth2 to be incompatible with a service you're trying to use this library with, please open an Issue or create a PR

Installation

Installing OhAuth2 is simple using Dart's package management system https://pub.dartlang.org/packages/oh_auth_2.

Getting Started

(Assuming you already have your OAuth credentials)

To retrieve the access token:

import 'dart:async';
import 'package:oh_auth_2/authenticator.dart';
import 'package:oh_auth_2/models/token.dart';

Future<Token> tokenResult = Authenticator(context)
    .getAccessToken(
        AuthenticationConfig.REDIRECT_URI,
        AuthenticationConfig.AUTH_URL,
        AuthenticationConfig.ACCESS_TOKEN_URL,
        AuthenticationConfig.CLIENT_ID,
        userAgent: AuthenticationConfig.USER_AGENT, //optional
        clientSecret: AuthenticationConfig.CLIENT_SECRET, //optional
)
    .then((token) {
  this.token = token;
  debugPrint(token.toJson().toString());
});

To refresh the access token:

import 'dart:async';
import 'package:oh_auth_2/authenticator.dart';
import 'package:oh_auth_2/models/token.dart';

Token token = await Authenticator(context).refreshAccessToken(
    AuthenticationConfig.ACCESS_TOKEN_URL,
    this.token.refreshToken,
    AuthenticationConfig.CLIENT_ID,
    userAgent: AuthenticationConfig.USER_AGENT, //optional
    clientSecret: AuthenticationConfig.CLIENT_SECRET, //optional
);
this.token.accessToken = token.accessToken;
debugPrint("Refreshed access token " + token.accessToken);

To revoke the access/refresh token:

import 'dart:async';
import 'package:oh_auth_2/authenticator.dart';
import 'package:oh_auth_2/models/token.dart';

bool isRevoked = await Authenticator(context).revokeAccessToken(
    AuthenticationConfig.REVOKE_TOKEN_URL,
    token.refreshToken,
    AuthenticationConfig.CLIENT_ID,
    userAgent: AuthenticationConfig.USER_AGENT, //optional
    clientSecret: AuthenticationConfig.CLIENT_SECRET //optional
);
debugPrint("Revoked access token " + (isRevoked.toString()));

License

OhAuth2 is provided under a MIT License. Copyright (c) 2018 Murtaza Akbari.

Libraries

access_token_response_listener
access_token_service
auth_view
authenticator
exceptions
token

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]