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AWS is offering AppSync – Build data-driven apps with real-time and off-line capabilities


  • AWS AppSync is a fully managed serverless GraphQL service for real-time data queries, synchronization, communications and offline programming features.
  • With AppSync developers can simplify the retrieval and manipulation of data across multiple data sources with ease, allowing them to quickly prototype, build and create robust, collaborative, multi-user applications.
  • AppSync keeps data updated when devices are connected, but enables developers to build solutions that work offline by caching data locally and synchronizing local data when connections become available.
The GraphQL Proxy passes the client request to the Resolver which maps and executes the request payload against pre-configured AWS data services like an Amazon DynamoDB table, an AWS Lambda function, or a search capability using Amazon Elasticsearch. The Resolver executes calls to one or all of these services within a single network call minimizing CPU cycles and bandwidth needs and returns the response to the client.

AWS AppSync is currently in Public Preview.

Could be a very flexible competitor for the Google Firebase realtime database!

Check also: An example of GraphQL akka-http server with stream-based subscriptions
GitHub/sangria-graphql/sangria-subscriptions-example

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