Simple AWS Lambda Node.js Boilerplate

This is a simple Node.js AWS Lambda seed to get you going. It uses node-lambda for locally running and deploying. It logs with Bunyan, and has a simple async waterfall in it's index.js to give you one approachin handling flow control in a Lambda function.

Basic

1. npm i -g aws-sdk to install AWS SDK if you haven't already.
2. npm i in repo directory to build node modules.
3. npm run start to try it out (locally)! Everything works, right? Good! Let's get it into the cloud...
4. Configure aws-sdk in your home directory. Ensure the Lambda-controlling aws_access_key_id and aws_secret_access_key are in, e.g., ~/.aws. This way you don't have to keep this in .env which I prefer to keep in version control.
5. Create a Lambda function on AWS. Edit .env to your Lambda function; and function name in package.json.
6. npm run deploy to push into the cloud...
7. Go to AWS Lambda console and test if it works. It does, right? Great! Start editing index.js to whatever you want. You can mock data in event.json. Look at deploy.env.example if you want to send along secret variables (change name to deploy.env) that don't go to git.

Advanced

8. Go to the AWS Lambda console and create two aliases, PROD and STAG.
9. Point STAG to $latest version. This way, whenever you deploy, STAG will always use the newest deployment.
10. Ready to update PROD? Use npm run updateProd and it will create a new version from $latest and point PROD to that version.
11. How to use this setup? When you invoke a Lambda function from, e.g., API Gateway, you can choose, e.g., MyFunctionName:PROD, and use STAG for, well, staging or development.