demo.yml

#@ load("@ytt:data", "data")
AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: My REST API

#! Parameters

Parameters:

  DeployEnv:
    Type: String
    Default: #@ data.values.deploy_env
  UsagePlanType:
    Type: String
    Default: PER_API

#! Conditions

#! Globals

Globals:
  HttpApi:
    Auth:
      ApiKeyRequired: true
      UsagePlan:
        CreateUsagePlan: !Ref UsagePlanType

#! Resources

Resources:


  RestApi:
    Type: AWS::Serverless::HttpApi
    Properties:
      StageName: !Ref DeployEnv


#! Outputs

values.yml

#@data/values
---
deploy_env: dev