I work on several Open Source projects to help the community (including myself 😀) deliver high-quality products faster.
Serverless AppSync plugin
Serverless AppSync Simulator
Based on the awesome amplify-cli, this other plugin will let you test your API locally as you write it, increasing development velocity.
A Middy.js middleware that handles common use cases for your AppSSync Lambda resolvers, like error handling, validation, etc.