AWS::Cognito::UserPoolClient - AWS CloudFormation

AWS::Cognito::UserPoolClient

The AWS::Cognito::UserPoolClient resource specifies an Amazon Cognito user pool client.

Note

If you don't specify a value for a parameter, Amazon Cognito sets it to a default value.

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

JSON

{ "Type" : "AWS::Cognito::UserPoolClient", "Properties" : { "AccessTokenValidity" : Integer, "AllowedOAuthFlows" : [ String, ... ], "AllowedOAuthFlowsUserPoolClient" : Boolean, "AllowedOAuthScopes" : [ String, ... ], "AnalyticsConfiguration" : AnalyticsConfiguration, "AuthSessionValidity" : Integer, "CallbackURLs" : [ String, ... ], "ClientName" : String, "DefaultRedirectURI" : String, "EnablePropagateAdditionalUserContextData" : Boolean, "EnableTokenRevocation" : Boolean, "ExplicitAuthFlows" : [ String, ... ], "GenerateSecret" : Boolean, "IdTokenValidity" : Integer, "LogoutURLs" : [ String, ... ], "PreventUserExistenceErrors" : String, "ReadAttributes" : [ String, ... ], "RefreshTokenValidity" : Integer, "SupportedIdentityProviders" : [ String, ... ], "TokenValidityUnits" : TokenValidityUnits, "UserPoolId" : String, "WriteAttributes" : [ String, ... ] } }

Properties

AccessTokenValidity

The access token time limit. After this limit expires, your user can't use their access token. To specify the time unit for AccessTokenValidity as seconds, minutes, hours, or days, set a TokenValidityUnits value in your API request.

For example, when you set AccessTokenValidity to 10 and TokenValidityUnits to hours, your user can authorize access with their access token for 10 hours.

The default time unit for AccessTokenValidity in an API request is hours.

Required: No

Type: Integer

Update requires: No interruption

AllowedOAuthFlows

The allowed OAuth flows.

code

Use a code grant flow, which provides an authorization code as the response. This code can be exchanged for access tokens with the /oauth2/token endpoint.

implicit

Issue the access token (and, optionally, ID token, based on scopes) directly to your user.

client_credentials

Issue the access token from the /oauth2/token endpoint directly to a non-person user using a combination of the client ID and client secret.

Required: No

Type: List of String

Maximum: 3

Update requires: No interruption

AllowedOAuthFlowsUserPoolClient

Set to true if the client is allowed to follow the OAuth protocol when interacting with Amazon Cognito user pools.

Required: No

Type: Boolean

Update requires: No interruption

AllowedOAuthScopes

The allowed OAuth scopes. Possible values provided by OAuth are phone, email, openid, and profile. Possible values provided by AWS are aws.cognito.signin.user.admin. Custom scopes created in Resource Servers are also supported.

Required: No

Type: List of String

Maximum: 50

Update requires: No interruption

AnalyticsConfiguration

The user pool analytics configuration for collecting metrics and sending them to your Amazon Pinpoint campaign.

Note

In AWS Regions where Amazon Pinpoint isn't available, user pools only support sending events to Amazon Pinpoint projects in AWS Region us-east-1. In Regions where Amazon Pinpoint is available, user pools support sending events to Amazon Pinpoint projects within that same Region.

Required: No

Type: AnalyticsConfiguration

Update requires: No interruption

AuthSessionValidity

Amazon Cognito creates a session token for each API request in an authentication flow. AuthSessionValidity is the duration, in minutes, of that session token. Your user pool native user must respond to each authentication challenge before the session expires.

Required: No

Type: Integer

Minimum: 3

Maximum: 15

Update requires: No interruption

CallbackURLs

A list of allowed redirect (callback) URLs for the IdPs.

A redirect URI must:

  • Be an absolute URI.

  • Be registered with the authorization server.

  • Not include a fragment component.

See OAuth 2.0 - Redirection Endpoint.

Amazon Cognito requires HTTPS over HTTP except for http://localhost for testing purposes only.

App callback URLs such as myapp://example are also supported.

Required: No

Type: List of String

Maximum: 100

Update requires: No interruption

ClientName

The client name for the user pool client you would like to create.

Required: No

Type: String

Minimum: 1

Maximum: 128

Pattern: [\w\s+=,.@-]+

Update requires: No interruption

DefaultRedirectURI

The default redirect URI. Must be in the CallbackURLs list.

A redirect URI must:

  • Be an absolute URI.

  • Be registered with the authorization server.

  • Not include a fragment component.

See OAuth 2.0 - Redirection Endpoint.

Amazon Cognito requires HTTPS over HTTP except for http://localhost for testing purposes only.

App callback URLs such as myapp://example are also supported.

Required: No

Type: String

Minimum: 1

Maximum: 1024

Pattern: [\p{L}\p{M}\p{S}\p{N}\p{P}]+

Update requires: No interruption

EnablePropagateAdditionalUserContextData

Activates the propagation of additional user context data. For more information about propagation of user context data, see Adding advanced security to a user pool. If you don’t include this parameter, you can't send device fingerprint information, including source IP address, to Amazon Cognito advanced security. You can only activate EnablePropagateAdditionalUserContextData in an app client that has a client secret.

Required: No

Type: Boolean

Update requires: No interruption

EnableTokenRevocation

Activates or deactivates token revocation. For more information about revoking tokens, see RevokeToken.

If you don't include this parameter, token revocation is automatically activated for the new user pool client.

Required: No

Type: Boolean

Update requires: No interruption

ExplicitAuthFlows

The authentication flows that you want your user pool client to support. For each app client in your user pool, you can sign in your users with any combination of one or more flows, including with a user name and Secure Remote Password (SRP), a user name and password, or a custom authentication process that you define with Lambda functions.

Note

If you don't specify a value for ExplicitAuthFlows, your user client supports ALLOW_REFRESH_TOKEN_AUTH, ALLOW_USER_SRP_AUTH, and ALLOW_CUSTOM_AUTH.

Valid values include:

  • ALLOW_ADMIN_USER_PASSWORD_AUTH: Enable admin based user password authentication flow ADMIN_USER_PASSWORD_AUTH. This setting replaces the ADMIN_NO_SRP_AUTH setting. With this authentication flow, your app passes a user name and password to Amazon Cognito in the request, instead of using the Secure Remote Password (SRP) protocol to securely transmit the password.

  • ALLOW_CUSTOM_AUTH: Enable Lambda trigger based authentication.

  • ALLOW_USER_PASSWORD_AUTH: Enable user password-based authentication. In this flow, Amazon Cognito receives the password in the request instead of using the SRP protocol to verify passwords.

  • ALLOW_USER_SRP_AUTH: Enable SRP-based authentication.

  • ALLOW_REFRESH_TOKEN_AUTH: Enable authflow to refresh tokens.

In some environments, you will see the values ADMIN_NO_SRP_AUTH, CUSTOM_AUTH_FLOW_ONLY, or USER_PASSWORD_AUTH. You can't assign these legacy ExplicitAuthFlows values to user pool clients at the same time as values that begin with ALLOW_, like ALLOW_USER_SRP_AUTH.

Required: No

Type: List of String

Update requires: No interruption

GenerateSecret

Boolean to specify whether you want to generate a secret for the user pool client being created.

Required: No

Type: Boolean

Update requires: Replacement

IdTokenValidity

The ID token time limit. After this limit expires, your user can't use their ID token. To specify the time unit for IdTokenValidity as seconds, minutes, hours, or days, set a TokenValidityUnits value in your API request.

For example, when you set IdTokenValidity as 10 and TokenValidityUnits as hours, your user can authenticate their session with their ID token for 10 hours.

The default time unit for AccessTokenValidity in an API request is hours.

Required: No

Type: Integer

Update requires: No interruption

LogoutURLs

A list of allowed logout URLs for the IdPs.

Required: No

Type: List of String

Maximum: 100

Update requires: No interruption

PreventUserExistenceErrors

Use this setting to choose which errors and responses are returned by Cognito APIs during authentication, account confirmation, and password recovery when the user does not exist in the user pool. When set to ENABLED and the user does not exist, authentication returns an error indicating either the username or password was incorrect, and account confirmation and password recovery return a response indicating a code was sent to a simulated destination. When set to LEGACY, those APIs will return a UserNotFoundException exception if the user does not exist in the user pool.

Required: No

Type: String

Allowed values: ENABLED | LEGACY

Update requires: No interruption

ReadAttributes

The read attributes.

Required: No

Type: List of String

Update requires: No interruption

RefreshTokenValidity

The refresh token time limit. After this limit expires, your user can't use their refresh token. To specify the time unit for RefreshTokenValidity as seconds, minutes, hours, or days, set a TokenValidityUnits value in your API request.

For example, when you set RefreshTokenValidity as 10 and TokenValidityUnits as days, your user can refresh their session and retrieve new access and ID tokens for 10 days.

The default time unit for RefreshTokenValidity in an API request is days. You can't set RefreshTokenValidity to 0. If you do, Amazon Cognito overrides the value with the default value of 30 days.

Required: No

Type: Integer

Update requires: No interruption

SupportedIdentityProviders

A list of provider names for the identity providers (IdPs) that are supported on this client. The following are supported: COGNITO, Facebook, Google, SignInWithApple, and LoginWithAmazon. You can also specify the names that you configured for the SAML and OIDC IdPs in your user pool, for example MySAMLIdP or MyOIDCIdP.

Required: No

Type: List of String

Update requires: No interruption

TokenValidityUnits

The units in which the validity times are represented. The default unit for RefreshToken is days, and default for ID and access tokens are hours.

Required: No

Type: TokenValidityUnits

Update requires: No interruption

UserPoolId

The user pool ID for the user pool where you want to create a user pool client.

Required: Yes

Type: String

Minimum: 1

Maximum: 55

Pattern: [\w-]+_[0-9a-zA-Z]+

Update requires: Replacement

WriteAttributes

The user pool attributes that the app client can write to.

If your app client allows users to sign in through an IdP, this array must include all attributes that you have mapped to IdP attributes. Amazon Cognito updates mapped attributes when users sign in to your application through an IdP. If your app client does not have write access to a mapped attribute, Amazon Cognito throws an error when it tries to update the attribute. For more information, see Specifying IdP Attribute Mappings for Your user pool.

Required: No

Type: List of String

Update requires: No interruption

Return values

Ref

When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the Amazon Cognito user pool client ID, such as 1h57kf5cpq17m0eml12EXAMPLE.

For more information about using the Ref function, see Ref.