Lambda Layers Example

This example describes how to use the Serverless Framework to create a microservices architecture with AWS Lambda Layers.

The original Medium Article is made with Zoi by Markus Wagner and is soon gonna be published at Medium.com

Dependencies

• Node.JS 10
• Serverless

Setup

See steps in article, or checkout Branch step_1, step_2 and step_3 too see the changes, or follow following instructions:

1. Install node.js 10 and Serverless
2. Configure AWS Account in AWS CLI
3. Replace Account ID from AWS Account in outputs.json, Tutorial for getting the ID.
4. Run serverless deploy -v -stage dev in the root folder of this project, this will deploy the dependency layer.
5. Change the current directory to business-logic\ and run serverless deploy -v -stage dev to deploy the hello World Lambda with the dependencies injected from the layer.
6. Checkout Lambda created by serverless in the AWS Console

IMPORTANT: dependencies-layer must be in a different folder than the business-logic, and then installed as devDependency in to the dependencieslayer and not in the business-logic. All Dependencies that are shared should be installed in to the dependencies-layer.