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, ... ]
    }
}

YAML


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. Valid range is displayed below in seconds.

If you don't specify otherwise in the configuration of your app client, your access tokens are valid for one hour.

Required: No

Type: Integer

Minimum: 1

Maximum: 86400

Update requires: No interruption

AllowedOAuthFlows

The OAuth grant types that you want your app client to generate. To create an app client that generates client credentials grants, you must add client_credentials as the only allowed OAuth flow.

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: Array of String

Minimum: 0

Maximum: 3

Update requires: No interruption

AllowedOAuthFlowsUserPoolClient

Set to true to use OAuth 2.0 features in your user pool app client.

AllowedOAuthFlowsUserPoolClient must be true before you can configure the following features in your app client.

CallBackURLs: Callback URLs.
LogoutURLs: Sign-out redirect URLs.
AllowedOAuthScopes: OAuth 2.0 scopes.
AllowedOAuthFlows: Support for authorization code, implicit, and client credentials OAuth 2.0 grants.

To use OAuth 2.0 features, configure one of these features in the Amazon Cognito console or set AllowedOAuthFlowsUserPoolClient to true in a CreateUserPoolClient or UpdateUserPoolClient API request. If you don't set a value for AllowedOAuthFlowsUserPoolClient in a request with the AWS CLI or SDKs, it defaults to false.

Required: No

Type: Boolean

Update requires: No interruption

AllowedOAuthScopes

The OAuth 2.0 scopes that you want to permit your app client to authorize. Scopes govern access control to user pool self-service API operations, user data from the userInfo endpoint, and third-party APIs. 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: Array 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.

In AWS Regions where Amazon Pinpoint isn't available, user pools might not have access to analytics or might be configurable with campaigns in the US East (N. Virginia) Region. For more information, see Using Amazon Pinpoint analytics.

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. Amazon Cognito doesn't accept authorization requests with redirect_uri values that aren't in the list of CallbackURLs that you provide in this parameter.
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: Array of String

Minimum: 0

Maximum: 100

Update requires: No interruption

ClientName

A friendly name for the app client that you want to create.

Required: No

Type: String

Minimum: 1

Maximum: 128

Update requires: No interruption

DefaultRedirectURI

The default redirect URI. In app clients with one assigned IdP, replaces redirect_uri in authentication requests. Must be in the CallbackURLs list.

Required: No

Type: String

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

Minimum: 1

Maximum: 1024

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_USER_AUTH: Enable selection-based sign-in with USER_AUTH. This setting covers username-password, secure remote password (SRP), passwordless, and passkey authentication. This authentiation flow can do username-password and SRP authentication without other ExplicitAuthFlows permitting them. For example users can complete an SRP challenge through USER_AUTH without the flow USER_SRP_AUTH being active for the app client. This flow doesn't include CUSTOM_AUTH.

To activate this setting, your user pool must be in the Essentials tier or higher.
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: Array of String

Update requires: No interruption

GenerateSecret

When true, generates a client secret for the app client. Client secrets are used with server-side and machine-to-machine applications. For more information, see App client types.

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 IdTokenValidity in an API request is hours. Valid range is displayed below in seconds.

If you don't specify otherwise in the configuration of your app client, your ID tokens are valid for one hour.

Required: No

Type: Integer

Minimum: 1

Maximum: 86400

Update requires: No interruption

LogoutURLs

A list of allowed logout URLs for managed login authentication. For more information, see Logout endpoint.

Required: No

Type: Array of String

Minimum: 0

Maximum: 100

Update requires: No interruption

PreventUserExistenceErrors

Errors and responses that you want Amazon Cognito APIs to return during authentication, account confirmation, and password recovery when the user doesn't exist in the user pool. When set to ENABLED and the user doesn't exist, authentication returns an error indicating either the username or password was incorrect. Account confirmation and password recovery return a response indicating a code was sent to a simulated destination. When set to LEGACY, those APIs return a UserNotFoundException exception if the user doesn't exist in the user pool.

Valid values include:

ENABLED - This prevents user existence-related errors.
LEGACY - This represents the early behavior of Amazon Cognito where user existence related errors aren't prevented.

Defaults to LEGACY when you don't provide a value.

Required: No

Type: String

Allowed values: LEGACY | ENABLED

Update requires: No interruption

ReadAttributes

The list of user attributes that you want your app client to have read access to. After your user authenticates in your app, their access token authorizes them to read their own attribute value for any attribute in this list. An example of this kind of activity is when your user selects a link to view their profile information. Your app makes a GetUser API request to retrieve and display your user's profile data.

When you don't specify the ReadAttributes for your app client, your app can read the values of email_verified, phone_number_verified, and the Standard attributes of your user pool. When your user pool app client has read access to these default attributes, ReadAttributes doesn't return any information. Amazon Cognito only populates ReadAttributes in the API response if you have specified your own custom set of read attributes.

Required: No

Type: Array 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. Valid range is displayed below in seconds.

If you don't specify otherwise in the configuration of your app client, your refresh tokens are valid for 30 days.

Required: No

Type: Integer

Minimum: 1

Maximum: 315360000

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.

This setting applies to providers that you can access with managed login. The removal of COGNITO from this list doesn't prevent authentication operations for local users with the user pools API in an AWS SDK. The only way to prevent API-based authentication is to block access with a AWS WAF rule.

Required: No

Type: Array of String

Update requires: No interruption

TokenValidityUnits

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

Required: No

Type: TokenValidityUnits

Update requires: No interruption

UserPoolId

The ID of the user pool where you want to create an app client.

Required: Yes

Type: String

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

Minimum: 1

Maximum: 55

Update requires: Replacement

WriteAttributes

The list of user attributes that you want your app client to have write access to. After your user authenticates in your app, their access token authorizes them to set or modify their own attribute value for any attribute in this list. An example of this kind of activity is when you present your user with a form to update their profile information and they change their last name. Your app then makes an UpdateUserAttributes API request and sets family_name to the new value.

When you don't specify the WriteAttributes for your app client, your app can write the values of the Standard attributes of your user pool. When your user pool has write access to these default attributes, WriteAttributes doesn't return any information. Amazon Cognito only populates WriteAttributes in the API response if you have specified your own custom set of write attributes.

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: Array 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.

Fn::GetAtt

ClientId: The ID of the app client, for example 1example23456789.

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Document Conventions

VerificationMessageTemplate

AnalyticsConfiguration