A simple AWS Lambda function that allows you to subscribe an email to a certain Mailchimp List
To get this function running with your credentials, first, clone the repo.
If you aren't familiar with setting environment variables for Lambda, create a .env file within the project. Set your API key and ListID like so (these are the only two things you need to set):
API_KEY='XXXXXXXXXXXXXXXXXX'
LIST_ID=xxxxxx223
Once you have this all setup, npm install:
npm install
And then:
npm run zip
Which will zip up all the files so you can upload this to Lambda.
When you use this, the data that you send to the lambda function should be structured like this:
{ "email": "luke@gmail.com" }
If you are looking to use this in a project, I tried setting up an AWS API Gateway to be able to invoke the function through a POST request, but CORS to work is a nightmare and the API Gateway gives some strange errors.
I found the most success by using the AWS SDK in the browser, going to Cognito in AWS and creating a pool group that doesn't require authorization. Then attaching that to my Lambda function. See this post for some of the client-side code that I used to get this working on a static website: https://dotdev.co/building-an-aws-lambda-function-that-can-be-triggered-on-the-client-side-b9c7d596a4fa#.wjs6mczam