CloudFormation doesn't deploy to API gateway stages on update

Question

When I run CloudFormation deploy using a template with API Gateway resources, the first time I run it, it creates and deploys to stages. The subsequent times I

Answer 1

The answer here is to use the AutoDeploy property of the Stage:

  Stage:
    Type: AWS::ApiGatewayV2::Stage
    Properties:
      StageName: v1
      Description: 'API Version 1'
      ApiId: !Ref: myApi
      AutoDeploy: true

Note that the 'DeploymentId' property must be unspecified when using 'AutoDeploy'.

See documentation, here: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-apigatewayv2-stage.html