A. Use an API Gateway HTTP API to invoke the Lambda functions. Set the JSON Web Token (JWT) issuer as the public OIDC endpoint of the on-premises IdP.
B. Use an API Gateway HTTP API to invoke the Lambda functions. Create an Amazon Cognito identity pool. Create a federation between the identity pool and the on-premises IdP. Set the identity pool as the JSON Web Token (JWT) issuer.
C. Use an API Gateway REST API to invoke the Lambda functions. Configure the JSON Web Token (JWT) issuer to link to the on-premises IdP over the public internet.
D. Use an API Gateway REST API to invoke the Lambda functions. Create an Amazon Cognito identity pool. Create a federation between the identity pool and the on-premises IdP. Set Amazon Cognito as the authorizer.

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