serverless-ai-fitness VS serverless-newsletter-app

In my fitness app, premium users get access to custom workouts generated by OpenAI. In my Step Function workflow that creates weekly workout schedules, I check the subscription level of every user and add a logic branch based on their subscription level. If they are a free user, the workflow will pull from a cache of existing workouts. If they are premium, then their data is passed to OpenAI to build the custom workouts.

I'll continue iterating on this design. The next big milestone is lifting this to its own domain and putting it behind a subscription model (it is SaaS, after all). But right now, you can access it and use it for free at fitness.readysetcloud.io or you can check out the source code on GitHub.

An AWS Serverless Hero, Allen Helton, did just that and wrote a detailed post about it.

If you want to see an implementation of this function, you can see it in my serverless-ai-fitness project. It is used in a Step Function workflow to build a workout with the equipment I have available in my home gym. It also creates a warmup and cooldown specifically for the generated workout.

This is open-source! If any of it excites you and you want to contribute, please check it out on GitHub! Feel free to fork it or open up a pull request.

So I added an EventBridge rule to the function and now I can send an email with a simple call to PutEvents. Here's an example taken from a Step Function workflow definition in my workout generator.

I am thrilled to take "workout building" off my plate. It's something I've enjoyed for a long time but I'm ready to have someone else do it for me. This was a fun project to build and I hope you take it and run with it. It's fully open-source and available for a PR!

If you want to see how easy it is to send an email by publishing an event, I have an example in my serverless newsletter app. In a Step Function worklow that reports how my weekly newsletter performed, I gather some analytic details from the SendGrid API, then publish an EventBridge event to send those details to me in a weekly "how did I do" email.

This platform is open source and I'd love for you to try it out and make updates as you see fit. It does require you to make a SendGrid account, but that's the only external thing you have to do. You can find all setup instructions in the README.