AWS API Gateway custom Authorizer strange showing error

Question

Here is the context:

• I set up a resource in the API gateway. /user/company
• This resource have 2 methods. Get and POST.
• I have configured a custom

Answer 1

I fixed this by setting the AuthorizerResultTtlInSeconds to 0.

The reason for this is that I was using a shared authorizer. However the authorizer worked by reading the event context of the request and granting an IAM to then invoke a specific lambda.

Because the authorizer was shared it was caching the response which was an IAM for a specific lambda for the TTL of (in my case) 300 seconds.

Therefore, I could call one API one minute, then not the next.

Changing the value above to 0 fixed the issue.