elm-graphql VS aws-appsync-community

Once I could quickly make calls against a server, and see the raw responses were matching up to my expectations, I moved to finding an Elm equivalent. Two years ago or so, Dillon had his GraphQL library and marketed it well.

The elm-graphql library enables code generation. This enables us to extend the “fearless refactoring” across the entire stack. As we build, learn, and eventually change our domain model from those learning’s, we can regenerate the front-end code needed, and the compiler lets us know what to modify (I still haven’t found something this powerful for ReScript yet).

I've managed to run the example from dillonkearns examples at master, however it is using a strange version of Swapi/Object with CustomScalarCodecs instead of ScalarCodecs generated by his code generation utility. I'm new to Elm, so costed me some time to make the Starwars.elm file work with properly generated classes, since even Id types in the repo example are not matching the generated types (Int vs String).

For context; the web application is built with React and TypeScript which makes calls to an AppSync API that makes use of the Lambda and DynamoDB datasources. We use Step Functions to orchestrate the flow of events for complex processing like purchasing and renewing policies, and we use S3 and SQS to process document workloads.

AWS AppSync is a serverless GraphQL offering by AWS, previously I authored a blog about AWS AppSync 101 which gets you up to speed with the capabilities of AppSync and how you can leverage them in your serverless applications.

Amplify Studio's Data allows you to define Amazon DynamoDB keeping in mind the properties with the right type and also powered with AWS AppSync where which generates a GraphQL schema under the hood.

AWS AppSync I'm keeping this section a bit shorter for you all, since AppSync is not something I have actually used personally, but have heard great things about. AppSync is another API option AWS has made available specifically for applications that want to take advantage of GraphQL or a Publish/Subscribe model. The GraphQL model may be of interest to front end developers that need to query multiple sources of data from one API endpoint, like databases or microservices. The Pub/Sub model I am more familiar with in the IoT hardware-communicates-with-software aspect, however this is also powerful for frontend developers looking to take advantage of real-time updates with serverless WebSocket connections. With AppSync, you also have caching, offline data synchronization, and real-time updates. You can learn more and check out the developer docs on the AWS Website.

5. Amazon Appsync

Amplify is a set of tools that allows full-stack web and mobile developers to create and build apps. It makes using AWS services, like our Cognito identity and access management service, or our managed GraphQL service AppSync, much simpler and straight forward to use.

This was the top-voted, long-awaited request for AppSync.

Appsync is the AWS service focus on creating flexible APIs, and Amplify is the framework that combines multiple AWS tools to help you build any type of Application.

Check out AppSync (https://aws.amazon.com/appsync/) or Apollo, you can deploy Apollo app to AWS as serverless application.