In this video we create a lambda function (a random number generator) and use versions and aliases to manage the deployment of the lambda function. ⚡️ Blog post: https://www.undefinedapps.com/post/deploy-lambda-versioning-aliases-api-gateway - 0:00 Intro: what are versions (numeric and $LATEST) and aliases and what are they useful for? - 1:58 Iteration #1 - creating the lambda function, a new version, a new alias and an API Gateway endpoint url, which will trigger the function - 5:45 Iteration #2 - create a new version and deploy the function by pointing the alias to the new version - 6:59 Iteration #3 - A faster way to deploy the function and manage rollbacks, without using the aws console - 11:18 Pointing an API gateway endpoint to trigger a lambda function's alias, instead of the $LATEST version ⚡️ Summary: - The $LATEST version points to the latest version of the code of the function. For example, when you edit the code or upload a zip file with your code, the $LATEST version will immediately point to that version of the code. - A numeric version of a function points to a snapshot of the function's code at the time when the version was released. This version of the code cannot be changed. - An alias points to one of the versions of the function - To manage the release and deployment of a lambda function, we can point an API Gateway endpoint to an alias and then when we release a new version of the function, adjust the alias to point to this new version. ⭐️ Subscribe for more content: https://newsletter.undefinedapps.com/ #AWS #Lambda #serverless