Hot take thread on AppSync reading through the docs....
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at the idea of having to combine VTL templates and Dynamo expressions. This looks so terrible.... http://docs.aws.amazon.com/appsync/latest/devguide/tutorial-dynamodb-resolvers.html …2 replies 0 retweets 0 likesShow this thread -
Lambda resolvers have a neat built in `batchInvoke` mode http://docs.aws.amazon.com/appsync/latest/devguide/tutorial-lambda-resolvers.html … This looks like data loader as a service! Super neat. Eases some of my concerns using lambda for resolvers
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ES resolvers are more VTL + ES queries. Ugh. Please no more VTL. I thought we were done with that. I suspect some big fancy best practice templates will emerge and you may not have to customize these too much. That's what happened with API Gateway
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Auth story looks better than expected. You can limit to specific fields based on IAM roles. That's pretty neat. I suspect if you are not using IAM/Cognito you'll just have to fall back to doing auth in the resolver.
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MISSING: Cloudwatch does not record field level metrics http://docs.aws.amazon.com/appsync/latest/devguide/integrating-with-cloudwatch.html … Apollo Engine lives to fight another day. But they should prob be watching their back
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There is too much VTL and enough missing in this service, I suspect someone will write a framework to help you get to hello world. It will be popular/useful for ~12 months and then probably become obsolete as AWS improves things.
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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 …1 reply 0 retweets 0 likesShow 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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