AWS CloudFormation
User Guide (Version )

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AWS::Cognito::UserPool LambdaConfig

LambdaConfig is a property of the AWS::Cognito::UserPool resource that defines the AWS Lambda configuration of an Amazon Cognito user pool.

Note

In a push model, event sources (such as Amazon S3 and custom applications) need permission to invoke a function. So you will need to make an extra call to add permission for these event sources to invoke your Lambda function.

For more information on using the Lambda API to add permission, see AddPermission .

For adding permission using the AWS CLI, see add-permission .

Syntax

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

JSON

{ "CreateAuthChallenge" : String, "CustomMessage" : String, "DefineAuthChallenge" : String, "PostAuthentication" : String, "PostConfirmation" : String, "PreAuthentication" : String, "PreSignUp" : String, "PreTokenGeneration" : String, "UserMigration" : String, "VerifyAuthChallengeResponse" : String }

Properties

CreateAuthChallenge

Creates an authentication challenge.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

CustomMessage

A custom Message AWS Lambda trigger.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

DefineAuthChallenge

Defines the authentication challenge.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

PostAuthentication

A post-authentication AWS Lambda trigger.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

PostConfirmation

A post-confirmation AWS Lambda trigger.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

PreAuthentication

A pre-authentication AWS Lambda trigger.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

PreSignUp

A pre-registration AWS Lambda trigger.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

PreTokenGeneration

A Lambda trigger that is invoked before token generation.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

UserMigration

The user migration Lambda config type.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

VerifyAuthChallengeResponse

Verifies the authentication challenge response.

Required: No

Type: String

Minimum: 20

Maximum: 2048

Pattern: arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?

Update requires: No interruption

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