Support Http Api RouteSettings and DefaultRouteSettings

[keetonian]

Description:

HTTP APIs need to support RouteSettings and DefaultRouteSettings when ApiGateway releases support for these properties in HTTP APIs.

DefaultRouteSettings:

DefaultRouteSettings looks like it should be a pass-through property to CloudFormation. We will enable it as a new top-level property of the AWS::Serverless::HttpApi resource.

Example:

Resources:
  HttpApi:
    Type: AWS::Serverless::HttpApi
    Properties:
      DefaultRouteSettings: 
        DataTraceEnabled: ... 
        DetailedMetricsEnabled: ...
        LoggingLevel: ...
        ThrottlingBurstLimit: ...
        ThrottlingRateLimit: ...

RouteSettings:

These settings are set per route in an API. We will add support for the RouteSettings property in the AWS::Serverless::Api resource, so template authors can add their route settings there. We will also merge and override values in the RouteSettings property with any values in the event-level RouteSettings property for a given path.

Example:

Api Level:

Api:
  Type: AWS::Serverless::HttpApi
  Properties:
    RouteSettings:
      "/path":
        DataTraceEnabled: ...
        DetailedMetricsEnabled: ...
        LoggingLevel: ...
        ThrottlingBurstLimit: ...
        ThrottlingRateLimit: ...

Event Level:

Anything added at the event level will be merged with the API-level configuration, if present. In case of collisions, the event-level configuration will override the api-level configuration.

Events:
  HttpApiEvent:
    Type: HttpApi
    Properties:
      Method: get
      Path: /path
      RouteSettings: # adds this to RouteSettings in the `AWS::ApiGatewayV2::Stage` resource under the Path/Method this event is configured for.
        DataTraceEnabled: ...
        DetailedMetricsEnabled: ...
        LoggingLevel: ...
        ThrottlingBurstLimit: ...
        ThrottlingRateLimit: ...

[ShreyaGangishetty]

This is released in v1.22.0