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Links an existing user account in a user pool (DestinationUser) to an identity
from an external IdP (SourceUser) based on a specified attribute name and value
from the external IdP. This allows you to create a link from the existing user account
to an external federated user identity that has not yet been used to sign in. You
can then use the federated user identity to sign in as the existing user account.
For example, if there is an existing user with a username and password, this API links that user to a federated user identity. When the user signs in with a federated user identity, they sign in as the existing user account.
The maximum number of federated identities linked to a user is five.
Because this API allows a user with an external federated identity to sign in as an existing user in the user pool, it is critical that it only be used with external IdPs and provider attributes that have been trusted by the application owner.
Amazon Cognito evaluates Identity and Access Management (IAM) policies in requests for this API operation. For this operation, you must use IAM credentials to authorize requests, and you must grant yourself the corresponding IAM permission in a policy.
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This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginAdminLinkProviderForUser and EndAdminLinkProviderForUser.
Namespace: Amazon.CognitoIdentityProvider
Assembly: AWSSDK.CognitoIdentityProvider.dll
Version: 3.x.y.z
public abstract Task<AdminLinkProviderForUserResponse> AdminLinkProviderForUserAsync( AdminLinkProviderForUserRequest request, CancellationToken cancellationToken )
Container for the necessary parameters to execute the AdminLinkProviderForUser service method.
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
| Exception | Condition |
|---|---|
| AliasExistsException | This exception is thrown when a user tries to confirm the account with an email address or phone number that has already been supplied as an alias for a different user profile. This exception indicates that an account with this email address or phone already exists in a user pool that you've configured to use email address or phone number as a sign-in alias. |
| InternalErrorException | This exception is thrown when Amazon Cognito encounters an internal error. |
| InvalidParameterException | This exception is thrown when the Amazon Cognito service encounters an invalid parameter. |
| LimitExceededException | This exception is thrown when a user exceeds the limit for a requested Amazon Web Services resource. |
| NotAuthorizedException | This exception is thrown when a user isn't authorized. |
| ResourceNotFoundException | This exception is thrown when the Amazon Cognito service can't find the requested resource. |
| TooManyRequestsException | This exception is thrown when the user has made too many requests for a given operation. |
| UserNotFoundException | This exception is thrown when a user isn't found. |
.NET Core App:
Supported in: 3.1
.NET Standard:
Supported in: 2.0
.NET Framework:
Supported in: 4.5