### IPlayerAccountService.StartSignInAsync(bool)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.PlayerAccounts.IPlayerAccountService.html

Starts the sign in flow by launching the system browser to sign in the current player or sign them up.

```APIDOC
## Method: StartSignInAsync(bool)

### Description
Starts the sign in flow by launching the system browser to sign in the current player or sign them up.

### Declaration
```csharp
Task StartSignInAsync(bool isSigningUp = false)
```

### Parameters
| Type | Name | Description |
|------|------|-------------|
| bool | isSigningUp | If set to `true`, the method initiates the sign-up flow. By default, it initiates the sign-in flow. |

### Returns
| Type | Description |
|------|-------------|
| Task | A task representing the asynchronous operation. |

### Remarks
To be notified of the sign-in outcome, including the retrieval of tokens, the developer must subscribe to the SignedIn event.
```

--------------------------------

### GetOpenIdConnectIdProviders()

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.PlayerInfo.html

Get all OpenID Connect id providers linked to the player.

```APIDOC
## GetOpenIdConnectIdProviders()

### Description
Get all OpenID Connect id providers linked to the player.

### Declaration
```csharp
public List<Identity> GetOpenIdConnectIdProviders()
```

### Returns
- List<Identity> - A list of all OpenID Connect id providers.
```

--------------------------------

### Waiting Event

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.Editor.IdProviderCustomSettingsElement.html

Event triggered when the IdProviderCustomSettingsElement starts or finishes waiting for a task. The first parameter of the callback is the sender. The second parameter is true if it starts waiting, and false if it finishes waiting.

```APIDOC
## Waiting Event

### Description
Event triggered when the IdProviderCustomSettingsElement starts or finishes waiting for a task. The first parameter of the callback is the sender. The second parameter is true if it starts waiting, and false if it finishes waiting.

### Declaration
```csharp
public abstract event Action<IdProviderCustomSettingsElement, bool> Waiting
```

### Event Type
- **Type**: `Action<IdProviderCustomSettingsElement, bool>`
- **Description**: The callback receives the sender and a boolean indicating waiting state.
```

--------------------------------

### SignUpWithUsernamePasswordAsync(string, string)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign up using Username and Password credentials.

```APIDOC
## SignUpWithUsernamePasswordAsync(string, string)

### Description
Sign up using Username and Password credentials.

### Method
SignUpWithUsernamePasswordAsync

### Parameters
- **username** (string) - Required - Username of the player. Note that it must be unique per project and contains 3-20 characters of alphanumeric and/or these special characters [. - @ _].
- **password** (string) - Required - Password of the player. Note that it must contain 8-30 characters with at least 1 upper case, 1 lower case, 1 number, and 1 special character.

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### IPlayerAccountService.IdToken

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.PlayerAccounts.IPlayerAccountService.html

Gets the ID token that was obtained during sign-in.

```APIDOC
## Property: IdToken

### Description
Gets the ID token that was obtained during sign-in.

### Declaration
```csharp
string IdToken { get; }
```

### Property Value
| Type | Description |
|------|-------------|
| string | The ID token. |
```

--------------------------------

### IPlayerAccountService.AccountPortalUrl

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.PlayerAccounts.IPlayerAccountService.html

Get the player account portal URL.

```APIDOC
## Property: AccountPortalUrl

### Description
Get the player account portal URL.

### Declaration
```csharp
string AccountPortalUrl { get; }
```

### Property Value
| Type | Description |
|------|-------------|
| string | The player account portal URL. |
```

--------------------------------

### SignInWithSteamAsync(string sessionTicket, string identity, string appId, SignInOptions options = null)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign in using Steam's session ticket. If no options are used, this will create an account if none exist.

```APIDOC
## SignInWithSteamAsync(string sessionTicket, string identity, string appId, SignInOptions options = null)

### Description
Sign in using Steam's session ticket. If no options are used, this will create an account if none exist.

### Method
SignInWithSteamAsync

### Parameters
- **sessionTicket** (string) - Required - Steam's session ticket
- **identity** (string) - Required - The identity of the calling service
- **appId** (string) - Required - App Id that was used to generate the ticket. Only required for additional app ids (e.g.: PlayTest, Demo, etc)
- **options** (SignInOptions) - Optional - Options for the operation

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` InvalidToken if the server side returned an invalid access token.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### IPlayerAccountService.AccessToken

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.PlayerAccounts.IPlayerAccountService.html

Gets the access token that was obtained during sign-in.

```APIDOC
## Property: AccessToken

### Description
Gets the access token that was obtained during sign-in.

### Declaration
```csharp
string AccessToken { get; }
```

### Property Value
| Type | Description |
|------|-------------|
| string | The access token. |
```

--------------------------------

### SignInWithAppleAsync(string, SignInOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign in using Apple's ID token. If no options are used, this will create an account if none exist.

```APIDOC
## SignInWithAppleAsync(string, SignInOptions)

### Description
Sign in using Apple's ID token. If no options are used, this will create an account if none exist.

### Method
SignInWithAppleAsync

### Declaration
```
Task SignInWithAppleAsync(string idToken, SignInOptions options = null)
```

### Parameters
- **idToken** (string) - Required - Apple's ID token
- **options** (SignInOptions) - Optional - Options for the operation

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` InvalidToken if the server side returned an invalid access token.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### SignInWithGoogleAsync(string, SignInOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign in using Google's ID token. If no options are used, this will create an account if none exist.

```APIDOC
## SignInWithGoogleAsync(string, SignInOptions)

### Description
Sign in using Google's ID token. If no options are used, this will create an account if none exist.

### Declaration
```csharp
Task SignInWithGoogleAsync(string idToken, SignInOptions options = null)
```

### Parameters
- **idToken** (string) - Required - Google's ID token
- **options** (SignInOptions) - Optional - Options for the operation

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` InvalidToken if the server side returned an invalid access token.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### IPlayerAccountService.IdTokenClaims

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.PlayerAccounts.IPlayerAccountService.html

Gets the claims from the ID token that was obtained during sign-in.

```APIDOC
## Property: IdTokenClaims

### Description
Gets the claims from the ID token that was obtained during sign-in.

### Declaration
```csharp
IdToken IdTokenClaims { get; }
```

### Property Value
| Type | Description |
|------|-------------|
| IdToken | The claims from the ID token. |
```

--------------------------------

### SignInWithSteamAsync(string, string, SignInOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Signs in using Steam's session ticket with an identity parameter. If no options are used, this will create an account if none exist.

```APIDOC
## SignInWithSteamAsync(string, string, SignInOptions)

### Description
Sign in using Steam's session ticket. If no options are used, this will create an account if none exist.

### Method
SignInWithSteamAsync

### Parameters
- **sessionTicket** (string) - Required - Steam's session ticket
- **identity** (string) - Required - The identity of the calling service
- **options** (SignInOptions) - Optional - Options for the operation

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - Thrown when the task cannot complete successfully due to Authentication specific errors. Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid. Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - Thrown when the task cannot complete successfully. Throws with `ErrorCode` InvalidToken if the server side returned an invalid access token. Throws with `ErrorCode` TransportError if the API call failed due to network error. Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server.
```

--------------------------------

### GatewayToken

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.Editor.IdProviderCustomSettingsElement.html

Gets the service gateway token. This property is read-only and returns a string.

```APIDOC
## GatewayToken

### Description
Property to get a service gateway token.

### Declaration
```csharp
public string GatewayToken { get; }
```

### Property Value
- **Type**: string

```

--------------------------------

### AuthenticationService

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.AuthenticationService.html

Documentation for the AuthenticationService class, which serves as the entry point to the Authentication Service. It provides a static Instance property to access the default singleton instance.

```APIDOC
## Class AuthenticationService

### Description
The entry class to the Authentication Service. Provides access to the default singleton instance of the authentication service.

### Inheritance
object -> AuthenticationService

### Namespace
Unity.Services.Authentication

### Assembly
Unity.Services.Authentication.dll

### Syntax
```csharp
public static class AuthenticationService
```

### Properties

#### Instance

The default singleton instance to access the Authentication service.

##### Declaration
```csharp
public static IAuthenticationService Instance { get; }
```

##### Property Value
| Type | Description |
|------|-------------|
| IAuthenticationService | The authentication service instance. |

##### Exceptions
| Type | Condition |
|------|-----------|
| ServicesInitializationException | Thrown if `UnityServices.InitializeAsync()` has not finished before accessing the singleton. |
```

--------------------------------

### SignInWithOculusAsync(string nonce, string userId, SignInOptions options = null)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign in using an Oculus account userId and nonce key. If no options are used, this will create an account if none exists.

```APIDOC
## SignInWithOculusAsync(string nonce, string userId, SignInOptions options = null)

### Description
Sign in using an Oculus account userId and nonce key. If no options are used, this will create an account if none exists.

### Method
SignInWithOculusAsync

### Parameters
- **nonce** (string) - Required - Client provided nonce key used by the server to verify that the provided Oculus userId is valid
- **userId** (string) - Required - Oculus account userId
- **options** (SignInOptions) - Optional - Options for the operation

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` InvalidToken if the server side returned an invalid access token.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### SignInFromServerAsync()

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.Server.IServerAuthenticationService.html

Asynchronously retrieves a token to authorize server operations from a hosted server.

```APIDOC
## SignInFromServerAsync()

### Description
Retrieve a token to authorize server operations from a hosted server. Must be running on a multiplay server or with the server local proxy activated.

### Declaration
```csharp
Task SignInFromServerAsync()
```

### Returns
| Type | Description |
|------|-------------|
| Task | Task for the operation |

### Exceptions
| Type | Condition |
|------|-----------|
| ServerAuthenticationException | The task fails with the exception when the task cannot complete successfully. |
```

--------------------------------

### SignInWithServiceAccountAsync(string, string)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.Server.IServerAuthenticationService.html

Asynchronously signs in using service account credentials with all scopes.

```APIDOC
## SignInWithServiceAccountAsync(string, string)

### Description
Trusted sign-in using service account credentials. Assigns all scopes associated to the service account.

### Declaration
```csharp
Task SignInWithServiceAccountAsync(string apiKeyIdentifier, string apiKeySecret)
```

### Parameters
| Type | Name | Description |
|------|------|-------------|
| string | apiKeyIdentifier | The service account key id |
| string | apiKeySecret | The service account key secret |

### Returns
| Type | Description |
|------|-------------|
| Task | Task for the operation |

### Exceptions
| Type | Condition |
|------|-----------|
| ServerAuthenticationException | The task fails with the exception when the task cannot complete successfully. |
```

--------------------------------

### SignInWithUsernamePasswordAsync(string, string)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign in using Username and Password credentials.

```APIDOC
## SignInWithUsernamePasswordAsync(string, string)

### Description
Sign in using Username and Password credentials.

### Method
SignInWithUsernamePasswordAsync

### Parameters
- **username** (string) - Required - Username of the player. Note that it must be unique per project and contains 3-20 characters of alphanumeric and/or these special characters [. - @ _].
- **password** (string) - Required - Password of the player. Note that it must contain 8-30 characters with at least 1 upper case, 1 lower case, 1 number, and 1 special character.

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### PlayerAccountService

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.PlayerAccounts.PlayerAccountService.html

Documentation for the PlayerAccountService class, including its Instance property.

```APIDOC
## Class PlayerAccountService

### Description
The entry class to the Player Account Service. Provides access to the default singleton instance of the service.

### Inheritance
object -> PlayerAccountService

### Namespace
Unity.Services.Authentication.PlayerAccounts

### Assembly
Unity.Services.Authentication.PlayerAccounts.dll

### Syntax
```csharp
public static class PlayerAccountService
```

### Properties

#### Instance

The default singleton instance to access the Player Account service.

##### Declaration
```csharp
public static IPlayerAccountService Instance { get; }
```

##### Property Value
| Type | Description |
| --- | --- |
| IPlayerAccountService | The singleton instance of the Player Account service. |

##### Exceptions
| Type | Condition |
| --- | --- |
| ServicesInitializationException | Thrown if `UnityServices.InitializeAsync()` has not finished before accessing the singleton. |
```

--------------------------------

### LinkOptions

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.LinkOptions.html

Documentation for the LinkOptions class, including its ForceLink property.

```APIDOC
## Class LinkOptions

### Description
Options for account linking operations.

### Inheritance
object -> LinkOptions

### Namespace
Unity.Services.Authentication

### Assembly
Unity.Services.Authentication.dll

### Syntax
```csharp
public sealed class LinkOptions
```

### Properties

#### ForceLink

Option to force a link if one already exists. Using this option will remove the initial link if there is one.

##### Declaration
```csharp
public bool ForceLink { get; set; }
```

##### Property Value
| Type | Description |
|------|-------------|
| bool | Indicates whether to force the link. |
```

--------------------------------

### SignInWithServiceAccountAsync(string, string, List<string>)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.Server.IServerAuthenticationService.html

Asynchronously signs in using service account credentials with specified scopes.

```APIDOC
## SignInWithServiceAccountAsync(string, string, List<string>)

### Description
Trusted sign-in using service account credentials.

### Declaration
```csharp
Task SignInWithServiceAccountAsync(string apiKeyIdentifier, string apiKeySecret, List<string> scopes)
```

### Parameters
| Type | Name | Description |
|------|------|-------------|
| string | apiKeyIdentifier | The service account key id |
| string | apiKeySecret | The service account key secret |
| List<string> | scopes | The scopes to request |

### Returns
| Type | Description |
|------|-------------|
| Task | Task for the operation |

### Exceptions
| Type | Condition |
|------|-----------|
| ServerAuthenticationException | The task fails with the exception when the task cannot complete successfully. |
```

--------------------------------

### SignInWithUnityAsync(string, SignInOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Signs in using a Unity Player Accounts access token. The token needs to be retrieved using the PlayerAccountService API.

```APIDOC
## SignInWithUnityAsync(string, SignInOptions)

### Description
Sign in using a Unity Player Accounts access token. The token needs to be retrieved using the PlayerAccountService API.

### Method
SignInWithUnityAsync

### Parameters
- **token** (string) - Required - Unity Player Accounts access token
- **options** (SignInOptions) - Optional - Options for the operation

### Returns
- **Task** - Task for the async operation

### Exceptions
- **AuthenticationException** - Thrown when the task cannot complete successfully due to Authentication specific errors. Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid. Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or sign-in in progress.
- **RequestFailedException** - Thrown when the task cannot complete successfully. Throws with `ErrorCode` InvalidToken if the server side returned an invalid access token. Throws with `ErrorCode` TransportError if the API call failed due to network error. Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server.
```

--------------------------------

### TargetingComponent

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.TargetingComponent.html

Documentation for the TargetingComponent class, including its properties and methods.

```APIDOC
## TargetingComponent

### Description
Manages targeting state, attributes, and release context for the current player session.

### Properties

#### Attributes
- **Type**: Attributes
- **Description**: The targeting attributes that will be sent with the next sign-in or refresh request.

#### Enabled
- **Type**: bool
- **Description**: Whether targeting is currently enabled. Returns the value set by SetEnabled(bool) if called, otherwise returns `true` when one or more packages have registered as targeting consumers.

#### VariantTags
- **Type**: string[]
- **Description**: The variant tags assigned to this session by the server, or `null` if no release has been resolved.

### Methods

#### ClearAppAttributes()
- **Signature**: `public void ClearAppAttributes()`
- **Description**: Clears any custom application attributes previously set by SetAppAttributes(object).

#### ClearEnabled()
- **Signature**: `public void ClearEnabled()`
- **Description**: Clears any value set by SetEnabled(bool), restoring the default behavior where targeting is enabled automatically when registered consumers exist.

#### ClearUserAttributes()
- **Signature**: `public void ClearUserAttributes()`
- **Description**: Clears any custom user attributes previously set by SetUserAttributes(object).

#### RefreshAsync()
- **Signature**: `public Task RefreshAsync()`
- **Description**: Refreshes the current session using the stored session token, sending targeting attributes if targeting is enabled.
- **Returns**: Task - A task for the refresh operation.
- **Exceptions**: AuthenticationException - The task fails with the exception when the session token does not exist.

#### SetAppAttributes(object)
- **Signature**: `public void SetAppAttributes(object appAttributes)`
- **Parameters**:
  - **appAttributes** (object) - An object whose properties will be serialized as application attributes.
- **Description**: Sets custom application-scoped attributes to be included in targeting requests.

#### SetEnabled(bool)
- **Signature**: `public void SetEnabled(bool enabled)`
- **Parameters**:
  - **enabled** (bool) - Set to `true` to enable targeting, or `false` to disable it.
- **Description**: Explicitly enables or disables targeting, overriding the default behavior. By default, targeting is enabled automatically when any package registers as a consumer. Calling this method overrides that behavior. If set to `false` while registered consumers exist, a warning is logged. Call ClearEnabled() to restore the default consumer-based behavior.

#### SetUserAttributes(object)
- **Signature**: `public void SetUserAttributes(object userAttributes)`
- **Parameters**:
  - **userAttributes** (object) - An object whose properties will be serialized as user attributes.
- **Description**: Sets custom user-scoped attributes to be included in targeting requests.
```

--------------------------------

### AuthenticationException

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.AuthenticationException.html

Documentation for the AuthenticationException class, including its properties and methods.

```APIDOC
## Class AuthenticationException

### Description
Represents a runtime exception from authentication. See AuthenticationErrorCodes for possible error codes.

### Inheritance
object -> Exception -> RequestFailedException -> AuthenticationException

### Implements
ISerializable

### Namespace
Unity.Services.Authentication

### Assembly
Unity.Services.Authentication.dll

### Syntax
```csharp
public sealed class AuthenticationException : RequestFailedException, ISerializable
```

### Remarks
See AuthenticationErrorCodes for possible error codes. Consult the service documentation for specific error codes various APIs can return.

### Properties

#### Notifications
Caches the player's notifications if any are available or null if none are available.

##### Declaration
```csharp
public List<Notification> Notifications { get; }
```

##### Property Value
| Type | Description |
|------|-------------|
| List<Notification> | The player's notifications, or null if none are available. |

### Methods

#### Create(int, string, Exception)
Creates the exception based on errorCode range. If the errorCode is less than AuthenticationErrorCodes.MinValue it creates a Unity.Services.Core.RequestFailedException. Otherwise it creates an AuthenticationException.

##### Declaration
```csharp
public static RequestFailedException Create(int errorCode, string message, Exception innerException = null)
```

##### Parameters
| Type | Name | Description |
|------|------|-------------|
| int | errorCode | Gets the error code for the current exception. |
| string | message | Gets a message that describes the current exception. |
| Exception | innerException | Gets the Exception instance that caused the current exception. |

##### Returns
| Type | Description |
|------|-------------|
| RequestFailedException | The built exception, either an AuthenticationException or a RequestFailedException. |
```

--------------------------------

### LinkWithGoogleAsync(string, LinkOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Links the current player with a Google account using Google's ID token.

```APIDOC
## LinkWithGoogleAsync(string, LinkOptions)

### Description
Link the current player with the Google account using Google's ID token.

### Method
LinkWithGoogleAsync

### Signature
```csharp
Task LinkWithGoogleAsync(string idToken, LinkOptions options = null)
```

### Parameters
- **idToken** (string) - Required - Google's ID token
- **options** (LinkOptions) - Optional - Options for the link operations.

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` AccountAlreadyLinked if the player tries to link a social account while the social account is already linked with another player.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player is not authorized to perform this operation.
  - Throws with `ErrorCode` AccountLinkLimitExceeded if the player has already reached the limit of links for this provider type.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` InvalidToken if access token is invalid/expired. The access token is refreshed before it expires. This may happen if the refresh fails, or the app is unpaused with an expired access token while the refresh hasn't finished.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### LinkWithAppleAsync(string, LinkOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Links the current player with an Apple account using Apple's ID token.

```APIDOC
## LinkWithAppleAsync(string, LinkOptions)

### Description
Link the current player with the Apple account using Apple's ID token.

### Declaration
```csharp
Task LinkWithAppleAsync(string idToken, LinkOptions options = null)
```

### Parameters
- **idToken** (string) - Required - Apple's ID token.
- **options** (LinkOptions) - Optional - Options for the link operations.

### Returns
- **Task** - Task for the operation.

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors. Throws with `ErrorCode` AccountAlreadyLinked if the player tries to link a social account while the social account is already linked with another player. Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid. Throws with `ErrorCode` ClientInvalidUserState if the player is not authorized to perform this operation. Throws with `ErrorCode` AccountLinkLimitExceeded if the player has already reached the limit of links for this provider type.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully. Throws with `ErrorCode` InvalidToken if access token is invalid/expired. Throws with `ErrorCode` TransportError if the API call failed due to network error. Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server.
```

--------------------------------

### OnServicesReady()

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.Components.PlayerAuthentication.html

Called when the services registry is set and ready to be used. This method is a protected override of ServicesBehaviour.OnServicesReady().

```APIDOC
## OnServicesReady()

### Description
Called when the services registry is set and ready to be used.

### Declaration
```
protected override void OnServicesReady()
```

### Overrides
Unity.Services.Core.Components.ServicesBehaviour.OnServicesReady()
```

--------------------------------

### LinkWithUnityAsync(string, LinkOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Links the current player with a Unity Player Accounts account using the Unity Player Accounts access token.

```APIDOC
## LinkWithUnityAsync(string, LinkOptions)

### Description
Links the current player with a Unity Player Accounts account using the Unity Player Accounts access token. The token needs to be retrieved using the PlayerAccountService API.

### Method
LinkWithUnityAsync

### Signature
Task LinkWithUnityAsync(string token, LinkOptions options = null)

### Parameters
- **token** (string) - Required - Unity Player Accounts access token
- **options** (LinkOptions) - Optional - Options for the link operations

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` AccountAlreadyLinked if the player tries to link a social account while the social account is already linked with another player.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player is not authorized to perform this operation.
  - Throws with `ErrorCode` AccountLinkLimitExceeded if the player has already reached the limit of links for this provider type.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` InvalidToken if access token is invalid/expired. The access token is refreshed before it expires. This may happen if the refresh fails, or the app is unpaused with an expired access token while the refresh hasn't finished.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### SignInWithOpenIdConnectAsync(string idProviderName, string idToken, SignInOptions options = null)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign in using a custom openID Connect id provider account. If no options are used, this will create an account if none exist.

```APIDOC
## SignInWithOpenIdConnectAsync(string idProviderName, string idToken, SignInOptions options = null)

### Description
Sign in using a custom openID Connect id provider account. If no options are used, this will create an account if none exist.

### Method
SignInWithOpenIdConnectAsync

### Parameters
- **idProviderName** (string) - Required - the name of the id provider created. Note that it must start with _"oidc-"_ and have between 1 and 20 characters
- **idToken** (string) - Required - Id Token for the custom id provider
- **options** (SignInOptions) - Optional - Options for the operation

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` InvalidToken if the server side returned an invalid access token.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### AddUsernamePasswordAsync(string, string)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign up with a new Username/Password and add it to the current logged in user.

```APIDOC
## AddUsernamePasswordAsync(string, string)

### Description
Sign up with a new Username/Password and add it to the current logged in user.

### Declaration
```
Task AddUsernamePasswordAsync(string username, string password)
```

### Parameters
- **username** (string) - Required - Username of the player. Note that it must be unique per project and contains 3-20 characters of alphanumeric and/or these special characters [. - @ _].
- **password** (string) - Required - Password of the player. Note that it must contain 8-30 characters with at least 1 upper case, 1 lower case, 1 number, and 1 special character.

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### LinkWithSteamAsync(string, string, LinkOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Links the current player with a Steam account using a session ticket and identity.

```APIDOC
## LinkWithSteamAsync(string, string, LinkOptions)

### Description
Link the current player with the Steam account using Steam's session ticket.

### Declaration
```csharp
Task LinkWithSteamAsync(string sessionTicket, string identity, LinkOptions options = null)
```

### Parameters
- **sessionTicket** (string) - Steam's session ticket
- **identity** (string) - The identity of the calling service
- **options** (LinkOptions) - Options for the link operations. Optional.

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - Thrown when the task cannot complete successfully due to Authentication specific errors.
  - `ErrorCode.AccountAlreadyLinked` if the player tries to link a social account while the social account is already linked with another player.
  - `ErrorCode.InvalidParameters` if parameter is empty or invalid.
  - `ErrorCode.ClientInvalidUserState` if the player is not authorized to perform this operation.
  - `ErrorCode.AccountLinkLimitExceeded` if the player has already reached the limit of links for this provider type.
- **RequestFailedException** - Thrown when the task cannot complete successfully.
  - `ErrorCode.InvalidToken` if access token is invalid/expired. The access token is refreshed before it expires. This may happen if the refresh fails, or the app is unpaused with an expired access token while the refresh hasn't finished.
  - `ErrorCode.TransportError` if the API call failed due to network error. Check Unity logs for more debugging information.
  - `ErrorCode.Unknown` if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### LinkWithOculusAsync(string, string, LinkOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Links the current player with an Oculus account using a nonce and user ID.

```APIDOC
## LinkWithOculusAsync(string, string, LinkOptions)

### Description
Link the current player with an Oculus account.

### Method
LinkWithOculusAsync

### Signature
```csharp
Task LinkWithOculusAsync(string nonce, string userId, LinkOptions options = null)
```

### Parameters
- **nonce** (string) - Required - Client provided nonce key used by the server to verify that the provided Oculus userId is valid.
- **userId** (string) - Required - Oculus account userId.
- **options** (LinkOptions) - Optional - Options for the operation.

### Returns
- **Task** - Task for the operation.

### Exceptions
- **AuthenticationException** - Thrown when the task cannot complete successfully due to Authentication specific errors.
  - `ErrorCode.AccountAlreadyLinked` if the player tries to link a social account while the social account is already linked with another player.
  - `ErrorCode.InvalidParameters` if parameter is empty or invalid.
  - `ErrorCode.ClientInvalidUserState` if the player is not authorized to perform this operation.
  - `ErrorCode.AccountLinkLimitExceeded` if the player has already reached the limit of links for this provider type.
- **RequestFailedException** - Thrown when the task cannot complete successfully.
  - `ErrorCode.InvalidToken` if access token is invalid/expired. The access token is refreshed before it expires. This may happen if the refresh fails, or the app is unpaused with an expired access token while the refresh hasn't finished.
  - `ErrorCode.TransportError` if the API call failed due to network error. Check Unity logs for more debugging information.
  - `ErrorCode.Unknown` if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### IdProviderOptions.CreateCustomSettingsElementDelegate

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.Editor.IdProviderOptions.CreateCustomSettingsElementDelegate.html

Delegate signature for creating a custom settings UI element for an ID provider.

```APIDOC
## Delegate IdProviderOptions.CreateCustomSettingsElementDelegate

### Description
The delegate to create custom settings UI element for the ID provider.

### Namespace
Unity.Services.Authentication.Editor

### Assembly
Unity.Services.Authentication.Editor.dll

### Syntax
```csharp
public delegate IdProviderCustomSettingsElement IdProviderOptions.CreateCustomSettingsElementDelegate(string projectId, Func<string> servicesGatewayTokenCallback, bool skipConfirmation)
```

### Parameters
- **projectId** (string) - The project ID
- **servicesGatewayTokenCallback** (Func<string>) - The callback action to get the service gateway token. It makes sure the token is up to date.
- **skipConfirmation** (bool) - Whether or not to skip the UI confirmation.

### Returns
- **IdProviderCustomSettingsElement** - The additional ID provider settings element.
```

--------------------------------

### SignInWithGooglePlayGamesAsync(string, SignInOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign in using Google Play Games' authorization code. If no options are used, this will create an account if none exist.

```APIDOC
## SignInWithGooglePlayGamesAsync(string, SignInOptions)

### Description
Sign in using Google Play Games' authorization code. If no options are used, this will create an account if none exist.

### Declaration
```csharp
Task SignInWithGooglePlayGamesAsync(string authCode, SignInOptions options = null)
```

### Parameters
- **authCode** (string) - Required - Google Play Games' authorization code
- **options** (SignInOptions) - Optional - Options for the operation

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` InvalidToken if the server side returned an invalid access token.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### LinkWithSteamAsync(string, string, string, LinkOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Links the current player with a Steam account using a session ticket, identity, and app ID.

```APIDOC
## LinkWithSteamAsync(string, string, string, LinkOptions)

### Description
Link the current player with the Steam account using Steam's session ticket.

### Declaration
```csharp
Task LinkWithSteamAsync(string sessionTicket, string identity, string appId, LinkOptions options = null)
```

### Parameters
- **sessionTicket** (string) - Steam's session ticket
- **identity** (string) - The identity of the calling service
- **appId** (string) - App Id that was used to generate the ticket. Only required for additional app ids (e.g.: PlayTest, Demo, etc)
- **options** (LinkOptions) - Options for the link operations. Optional.

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - Thrown when the task cannot complete successfully due to Authentication specific errors.
  - `ErrorCode.AccountAlreadyLinked` if the player tries to link a social account while the social account is already linked with another player.
  - `ErrorCode.InvalidParameters` if parameter is empty or invalid.
  - `ErrorCode.ClientInvalidUserState` if the player is not authorized to perform this operation.
  - `ErrorCode.AccountLinkLimitExceeded` if the player has already reached the limit of links for this provider type.
- **RequestFailedException** - Thrown when the task cannot complete successfully.
  - `ErrorCode.InvalidToken` if access token is invalid/expired. The access token is refreshed before it expires. This may happen if the refresh fails, or the app is unpaused with an expired access token while the refresh hasn't finished.
  - `ErrorCode.TransportError` if the API call failed due to network error. Check Unity logs for more debugging information.
  - `ErrorCode.Unknown` if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```

--------------------------------

### SignInWithFacebookAsync(string, SignInOptions)

Source: https://docs.unity3d.com/Packages/com.unity.services.authentication%403.8/api/Unity.Services.Authentication.IAuthenticationService.html

Sign in using Facebook's access token. If no options are used, this will create an account if none exist.

```APIDOC
## SignInWithFacebookAsync(string, SignInOptions)

### Description
Sign in using Facebook's access token. If no options are used, this will create an account if none exist.

### Declaration
```csharp
Task SignInWithFacebookAsync(string accessToken, SignInOptions options = null)
```

### Parameters
- **accessToken** (string) - Required - Facebook's access token
- **options** (SignInOptions) - Optional - Options for the operation

### Returns
- **Task** - Task for the operation

### Exceptions
- **AuthenticationException** - The task fails with the exception when the task cannot complete successfully due to Authentication specific errors.
  - Throws with `ErrorCode` InvalidParameters if parameter is empty or invalid.
  - Throws with `ErrorCode` ClientInvalidUserState if the player has already signed in or a sign-in operation is in progress.
- **RequestFailedException** - The task fails with the exception when the task cannot complete successfully.
  - Throws with `ErrorCode` InvalidToken if the server side returned an invalid access token.
  - Throws with `ErrorCode` TransportError if the API call failed due to network error. Check Unity logs for more debugging information.
  - Throws with `ErrorCode` Unknown if the API call failed due to unexpected response from the server. Check Unity logs for more debugging information.
```