Using Path Parameters with Golang Serverless

Events:
        CatchAll:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /api/{foo}
            Request:
              Parameters:
                Paths:
                  foo: true

Setting foo to true will make it required, false for an optional path parameter. To access the path parameter values from the request, req.PathParameters, will return a map in the format of foo:value