Build Your Own Serverless Subscriber List With Golang and AWS

How to build your own newsletter list with DynamoDB and SES email signup confirmations

How to build your own newsletter list with DynamoDB and SES email signup confirmations

Photo by  Rinck Content Studio on  Unsplash.

Here’s how I lovingly built a subscription signup flow with email confirmation that doesn’t suck. You can too.

Introducing Simple Subscribe

If you’re interested in managing your own mailing list or newsletter, you can set up Simple Subscribe on your own AWS resources to collect email addresses. This open source API is written in Go and runs on AWS Lambda. Visitors to your site can sign up to your list, which is stored in a DynamoDB table and ready to be queried or exported at your leisure.

When someone signs up, they’ll receive an email asking them to confirm their subscription. This is sometimes called “double opt-in,” although I prefer the term “verified.” Simple Subscribe works on serverless infrastructure and uses an AWS Lambda to handle subscription, confirmation, and unsubscribe requests.

You can find the Simple SubScribe project, with its fully open source code,  on GitHub. I encourage you to pull up the code and follow along! In this article, I’ll share each build step, the thought process behind the API’s single-responsibility functions, and security considerations for an AWS project like this one.

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