Allow setting TimeoutInMillis for API (HttpApi/Api) event types

[Lanchez]

Describe your idea/feature/enhancement

HTTP API integrations have 5000ms default timeout versus 29000ms on REST API. There should be a way to set timout per integration since 5000ms is simply too low for some cases.

Proposal

It would be perfect if timeout could be configured per API event in function definitions. In Cloudformation AWS::ApiGatewayV2::Integration and AWS::ApiGateway::Method->Integration allows setting TimeoutInMillis. Maybe this could be set in each API/HttpApi events?

[jfuss]

@Lanchez Thanks for the issue. This sounds like you are proposing some changes to the SAM Spec here? Specifically, a way to configure the timeout on HTTP API Resources?

[Lanchez]

@jfuss Basically yes. HttpApi would be sufficient and much cheaper for my project, but it's impossible to use since 5000ms default timeout is too low for some requests. Since there is also timeout settings for lambda functions in SAM spec, the API integrations could basically have "unlimited" timeout. Or like Rest API has 29000ms default.

[Lanchez]

Actually I post this one to serverless-application-model repo.

[jfuss]

@Lanchez I was going to just transfer this one over to there. I was just trying to make sure I understood the ask/issue first.

[Lanchez]

@jfuss Thanks for your help!

We are also declaring our HTTP API using SAM and would like this feature.

[keetonian]

Looks like there is an OpenApi integration for this: https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-swagger-extensions-integration.html

Can add TimeoutInMillis as a property here: https://github.com/awslabs/serverless-application-model/blob/develop/samtranslator/model/eventsources/push.py#L937

Then add it into the open api editor for this feature.