Lambda Layers and Environment Variables

AWS Lambda Layers help you manage common dependencies and custom runtimes more efficiently. Think of them as shared libraries for your functions.

Instead of bundling all your code and dependencies with every function deployment, you can package reusable components into a Layer.

Layers offer several benefits for your serverless applications:

• Smaller Deployment Packages: Keep your function code lean by separating dependencies.
• Code Reusability: Share common code (e.g., utility functions, database connectors) across multiple Lambda functions.
• Faster Deployments: Smaller packages upload quicker.
• Easier Updates: Update a dependency once in a layer, and all functions using it benefit.