Articles in this series
Originally published on Medium Updated on 2020–12–26: After posting this, I realized that it could be improved this, even more, by using DynamoDB TTL. I updated this article accordingly. While I was working on a GraphQL API, I needed a couple of res...
AppSync is a fully managed service from AWS that lets you build and deploy scalable and secure GraphQL APIs in the cloud. DynamoDB is a NoSQL fully managed and scalable database. Both being serverless services, they are very often used together. If y...
One of the great benefits of GraphQL is typing! Define your schema, and GraphQL enforces the input/output "shape" of your endpoints data. If you are using Lambda as your AppSync resolvers with the node.js runtime, you might be using TypeScript, too. ...
In this post, I will teach you how you can handle many-to-many relations with AWS AppSync, how to avoid denormalization and still avoid the n+1 problem. TL;DR; Use a Pipeline resolver to first fetch the relations followed by a BatchGetItem operation...
I recently came across David Boyne's blog post: How to Observe EventBridge Events with Postman and WebSockets. What a great idea! But, then I thought: I can do the same with AppSync Subscriptions! I had to try! Here is what I achieved: Building the...
