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

CloudFormation in Amazon's words is:

AWS CloudFormation takes care of provisioning and configuring those resources for you http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html

Redeployment of APIs is not a provisioning task... It is a promotion activity which is part of a stage in your software release process.

AWS CodePipeline is a continuous delivery service you can use to model, visualize, and automate the steps required to release your software. http://docs.aws.amazon.com/codepipeline/latest/userguide/welcome.html

CodePipeline also supports execution of Lambda functions from Actions in the pipeline. So, as advised before, create a Lambda function to deploy your API but call it from Codepipeline instead of CloudFormation.

Consult this page for details: http://docs.aws.amazon.com/codepipeline/latest/userguide/actions-invoke-lambda-function.html