API ReferenceAWSCognitoIdentityProviderICognitoIdentityProviderGetSigningCertificateRequestVersion: 2.1On this pageICognitoIdentityProviderGetSigningCertificateRequestInterface in AWS.CognitoIdentityProvider Interface for GetSigningCertificate requests. Ancestors ICognitoIdentityProviderRequest Properties UserPoolId property UserPoolId: string Specify the ID of the user pool.