Hot take thread on AppSync reading through the docs....
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ALSO MISSING: Xray integration? I can't find anything the docs about it. Will xray+lambda+app sync just all play nice?
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Subscriptions look half baked. You have to tie a subscription directly to a mutation using a GraphQL directive. Ugh "Note: Adding resolvers to subscriptions is unsupported at this time."


http://docs.aws.amazon.com/appsync/latest/devguide/real-time-data.html …Show this thread -
To be fair its nearly impossible to do subscriptions now with Lambda+GraphQL so this is better than nothing.
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"AWS AppSync can automatically provision Amazon DynamoDB tables from a schema definition, create data sources, and connect the resolvers on your behalf" THAT is cool
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We've got more planned around this area, keep watching how the feature evolves. The Mapping Templates today are a combination of VTL, JSON and helpers (https://docs.aws.amazon.com/appsync/latest/devguide/resolver-context-reference.html#aws-appsync-resolver-context-reference-util …). Based on early customer feedback, we wanted to start by giving control flow/logic and uplevel.
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When you play with the service in the console you'll also notice a lot of built-in templates for the common scenarios like pagination, relations, queries (specific to each Data Source like DDB and ES) and even variables from GraphQL parameters.
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The docs show the full spectrum - quickstart with basics for people getting going and advanced use cases that you can adapt to as your business grows. We'd still love more feedback around how we can keep evolving for different use cases especially on documentation!
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at the idea of having to combine VTL templates and Dynamo expressions. This looks so terrible....