What are Lambda layers and how do I use them?

What are Lambda layers and how do I use them?

Lambda layers are a way to package and share code and dependencies across multiple AWS Lambda functions. You can use them to manage common libraries or code that you want to reuse.

How do I create a Lambda layer?

To create a Lambda layer, you need to package your code and dependencies into a .zip file, then upload it to AWS Lambda through the console or CLI.

Can I use multiple layers in a single Lambda function?

Yes, you can use up to five layers in a single Lambda function, allowing you to combine different libraries and dependencies.

What are some best practices for using Lambda layers?

Some best practices include keeping layers small, versioning your layers, and only including necessary dependencies to optimize performance.