Lambda Authorizer multiple identity sources with OR between them

Is there an existing issue for this?

• I have searched existing issues, it hasn't been reported yet

Use case description

Today there is already a feature where multiple identity source can be applied to lambda authorizer. The feature request can be seen here
As far as I understand, for this case, all the identity sources should be applied, otherwise API gateway will return 401 result automatically.
I would like to have the option that if ONE of the identity sources exists, then the lambda authorizer will be ran.
So for example if I have two identity sources:

1. Authorization Header
2. Cookie Header

• If Cookie header exists and authorization header not exists - lambda authorizer will be ran
• If Authorization header exists but cookie header not exists - lambda authorizer will be ran
• If both Authorization and Cookie header not exists - API Gateway will return 401 automatically.

Is it a use case that can be implemented ?

Regards,
Nadav Mary

Proposed solution (optional)

No response

Start by reviewing the existing multiple-identity-source Lambda authorizer behavior and the related feature request in issue #5746. Check AWS API Gateway semantics for missing identity sources, then define how the OR behavior should be represented and verified for the Authorization and Cookie header examples.