Apple, Facebook and Google authentication

CHANGELOG.md

@@ -9,6 +9,7 @@
 * Support `Configuration.defaultRealmPath` for setting a custom default path for realms. ([#665](https://github.com/realm/realm-dart/pull/665))
 * Support `Configuration.defaultStoragePath ` for getting the platform specific storage paths. ([#665](https://github.com/realm/realm-dart/pull/665))
 * Support `App.deleteUser ` for deleting user accounts. ([#679](https://github.com/realm/realm-dart/pull/679))
+* Support Apple, Facebook and Google authentication. ([#740](https://github.com/realm/realm-dart/pull/740))
 
 ### Internal
 * Added a command to `realm_dart` for deleting Atlas App Services applications. Usage: `dart run realm_dart delete-apps`. By default it will delete apps from `http://localhost:9090` which is the endpoint of the local docker image. If `--atlas-cluster` is provided, it will authenticate, delete the application from the provided cluster. (PR [#663](https://github.com/realm/realm-dart/pull/663))

lib/src/credentials.dart

@@ -28,11 +28,17 @@ enum AuthProviderType {
   /// For authenticating without credentials.
   anonymous,
 
-  _facebook,
-  _google,
-  _apple,
-  _custom,
+  /// Authenticate with Apple Id
+  apple,
+
+  /// Authenticate with Facebook account.
+  facebook,
+
+  /// Authenticate with Google account
+  google,
 
+  _custom,
+
   /// For authenticating with an email and a password.
   emailPassword,
 
@@ -44,8 +50,7 @@ enum AuthProviderType {
 /// A class, representing the credentials used for authenticating a [User]
 /// {@category Application}
 class Credentials {
-  late final RealmAppCredentialsHandle _handle;
-
+  final RealmAppCredentialsHandle _handle;
   final AuthProviderType provider;
 
   /// Returns a [Credentials] object that can be used to authenticate an anonymous user.
@@ -54,13 +59,33 @@ class Credentials {
       : _handle = realmCore.createAppCredentialsAnonymous(),
         provider = AuthProviderType.anonymous;
 
+  /// Returns a [Credentials] object that can be used to authenticate a user with a Google account using an id token.
+  Credentials.apple(String idToken)
+      : _handle = realmCore.createAppCredentialsApple(idToken),
+        provider = AuthProviderType.apple;
+
   /// Returns a [Credentials] object that can be used to authenticate a user with their email and password.
   /// A user can login with email and password only after they have registered their account and verified their
   /// email.
   /// [Email/Password Authentication Docs](https://docs.mongodb.com/realm/authentication/email-password)
   Credentials.emailPassword(String email, String password)
       : _handle = realmCore.createAppCredentialsEmailPassword(email, password),
         provider = AuthProviderType.emailPassword;
+
+  /// Returns a [Credentials] object that can be used to authenticate a user with a Facebook account.
+  Credentials.facebook(String accessToken)
+      : _handle = realmCore.createAppCredentialsFacebook(accessToken),
+        provider = AuthProviderType.facebook;
+
+  /// Returns a [Credentials] object that can be used to authenticate a user with a Google account using an authentication code.
+  Credentials.googleAuthCode(String authCode)
+      : _handle = realmCore.createAppCredentialsGoogleAuthCode(authCode),
+        provider = AuthProviderType.google;
+
+  /// Returns a [Credentials] object that can be used to authenticate a user with a Google account using an id token.
+  Credentials.googleIdToken(String idToken)
+      : _handle = realmCore.createAppCredentialsGoogleIdToken(idToken),
+        provider = AuthProviderType.google;
 }
 
 /// @nodoc

lib/src/native/realm_core.dart

@@ -930,6 +930,34 @@ class _RealmCore {
     });
   }
 
+  RealmAppCredentialsHandle createAppCredentialsApple(String idToken) {
+    return using((arena) {
+      final idTokenPtr = idToken.toCharPtr(arena);
+      return RealmAppCredentialsHandle._(_realmLib.realm_app_credentials_new_apple(idTokenPtr));
+    });
+  }
+
+  RealmAppCredentialsHandle createAppCredentialsFacebook(String accessToken) {
+    return using((arena) {
+      final accessTokenPtr = accessToken.toCharPtr(arena);
+      return RealmAppCredentialsHandle._(_realmLib.realm_app_credentials_new_facebook(accessTokenPtr));
+    });
+  }
+
+  RealmAppCredentialsHandle createAppCredentialsGoogleIdToken(String idToken) {
+    return using((arena) {
+      final idTokenPtr = idToken.toCharPtr(arena);
+      return RealmAppCredentialsHandle._(_realmLib.realm_app_credentials_new_google_id_token(idTokenPtr));
+    });
+  }
+
+  RealmAppCredentialsHandle createAppCredentialsGoogleAuthCode(String authCode) {
+    return using((arena) {
+      final authCodePtr = authCode.toCharPtr(arena);
+      return RealmAppCredentialsHandle._(_realmLib.realm_app_credentials_new_google_auth_code(authCodePtr));
+    });
+  }
+
   RealmHttpTransportHandle _createHttpTransport(HttpClient httpClient) {
     final requestCallback = Pointer.fromFunction<Void Function(Handle, realm_http_request, Pointer<Void>)>(_request_callback);
     final requestCallbackUserdata = _realmLib.realm_dart_userdata_async_new(httpClient, requestCallback.cast(), scheduler.handle._pointer);