API Gateway + AWS SageMaker - AWS ARN for integration contains invalid action for integration with sagemaker

Question

As mentioned in step-3 of this blog by AWS , I have created a role to invoke sagemaker endpoint. But, when I deploy the API to a stage, I get "AWS ARN for integration contains invalid action" and I can't deploy the stage.

blog suggested to select API Gateway under services and to keep on next, but didn't mention which policy will be attached. and also that another inline policy to invoke a specific sagemaker endpoint to be created and attached.

and as mentioned in AWS Docs :

It must also have API Gateway declared (in the role's trust relationship) as a trusted entity to assume the role.

my role also have the trust-relationshp:

What's missing in my role that led to the error?

Answer 1

Check in all your API methods that you haven't specified "Use Action Name" for any integration request, and then left the "Action" field blank. If you do the "AWS ARN for integration contains invalid action" error message will be shown.