simple_auth_flutter 0.0.1

Simple Auth is the simplest way to authenticate your users/apis. This plugin will securely store tokens/credentials as well as automatically present login UI when needed.

Simple Auth for Dart/Flutter

Most apps need to make API calls. Every API needs authentication, yet no developer wants to deal with authentication. Simple Auth embeds authentication into the API so you dont need to deal with it.

This is a port of Clancey.SimpleAuth for Dart and Flutter

The network/api part including the generator was based off of Chopper by Hadrien Lejard

iOS:

Android:

Providers

Current Built in Providers

• Azure Active Directory
• Amazon
• Dropbox
• Facebook
• Github
• Google
• Instagram
• Linked In
• Microsoft Live Connect
• And of course any standard OAuth2/Basic Auth server.

Usage

var api = new simpleAuth.GoogleApi(
      "google", "client_id",clientSecret: "clientSecret",
      scopes: [
        "https://www.googleapis.com/auth/userinfo.email",
        "https://www.googleapis.com/auth/userinfo.profile"
      ]);
var request = new Request(HttpMethod.Get, "https://www.googleapis.com/oauth2/v1/userinfo?alt=json");
var userInfo = await api.send<UserInfo>(request);

That's it! If the user is not logged in, they will automatically be prompted. If their credentials are cached from a previous session, the api call proceeds! Expired tokens even automatically refresh.

Flutter Setup

Call SimpleAuthFlutter.init(); in your Main.Dart. Now Simple Auth can automatically present your login UI

Android Manifest

Android requires you to add the callback scheme:

<activity android:name="clancey.simpleauth.simpleauthflutter.SimpleAuthCallbackActivity" >
    <intent-filter android:label="simple_auth">
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="com.googleusercontent.apps.992461286651-k3tsbcreniknqptanrugsetiimt0lkvo" />
    </intent-filter>
</activity>

iOS

To use the Native Safari Authenticator, you are required to add the following snippet in your AppDelegate.

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{
    return [SimpleAuthFlutterPlugin checkUrl:url];
}

You are also required to add the following to add a CFBundleURLSchemes to your info.plist

For Google: com.googleusercontent.apps.YOUR_CLIENT_ID

	<key>CFBundleURLTypes</key>
	<array>
		<dict>
			<key>CFBundleURLSchemes</key>
			<array>
				<string>com.googleusercontent.apps.YOURCLIENTID</string>
			</array>
			<key>CFBundleURLName</key>
			<string>googleLogin</string>
		</dict>
	</array>
	

Serialization

Json objects will automatically serialize if you conform to JsonSerializable

If you use the generator and you objects have the factory factory JsonSerializable.fromJson(Map<String, dynamic> json) your api calls will automatically Serialize/Deserialize

Or you can pass your own Converter to the api and handle conversion yourself.

Generator

flutter

flutter packages pub run build_runner build

Add the following to your pubspec.yaml

dev_dependencies:
  simple_auth_generator: 
  build_runner: ^0.8.0

The Generator is not required, however it will make things magical.

@GoogleApiDeclaration("GoogleTestApi","client_id",clientSecret: "client_secret", scopes: ["TestScope", "Scope2"])
abstract class GoogleTestDefinition {
  @Get(url: "https://www.googleapis.com/oauth2/v1/userinfo?alt=json")
  Future<Response<GoogleUser>> getCurrentUserInfo();
}

will generate a new Api for you that is easy to use!

var api = new GoogleTestApi("google");
var user = await getCurrentUserInfo();

For more examples, check out the example project

TODO

• Add more documentation
• Add native flutter providers for google