How to make a session in DynamoDB
In this section, we’re just going to save some browsing information in a session (held in DynamoDB) and redirect the user to Twitter. Once we have a callback in place, we’ll use that session data to have our user follow us. We can also use that data to message that user later (we actually have the user DM themselves, explained in the next section) with some promotional news.
Email, Lambda, Mailgun, Dynamo, S3
There is going to be a lot coming at you all at once in this post. This is a large project with a lot of moving parts; while I actually built this incrementally, we’ll just be building pretty much everything final-stage here (with a few exceptions). Take your time and read everything. We’ll be touching S3, Lambda, IAM, KMS, and DynamoDB services in this post.