A banking company is building an application for users to create accounts, view balances, and...

Create a canary deployment for the REST API. Gradually increase traffic to the new version of the function. Revert traffic to the old version if issues are detected.

Redeploy the REST API stage to use the new version of the function. If issues are detected, update the REST API to point to the previous version of the function.

Deploy the new version of the function to a new stage in the REST API. Route traffic to the new stage. If the new version fails, route traffic to the original stage.

Create a new REST API stage for the new version of the function. Create a weighted alias record set in Amazon Route 53 to distribute traffic between the original stage and the new stage.