# What are the benefits and drawbacks of using AWS AppSync for building real-time applications? What are the benefits and drawbacks of using AWS AppSync for building real-time applications? ##### Post Metadata

# What is AWS AppSync used for? What is AWS AppSync used for? ##### Post Metadata

# What is AppSync resolver? What is AppSync resolver? ##### Post Metadata

# What is AWS GraphQL? What is AWS GraphQL? ##### Post Metadata

# Is AWS AppSync free? Is AWS AppSync free? ##### Post Metadata

# What is AWS AppSync? What is AWS AppSync? ##### Post Metadata

# Best practices for mass production and modular resolvers that can be used cross-account in AWS. Would like to reach a higher state of efficiency in development of AppSync resolvers. ##### Post Metadata

# when you do a x-ray to the requests, why is that some times the lambda responds fast or it can take up to 2 seconds ? in x-ray you can see it does nothing for like 1.5 seconds, this requesting 1 single object from dynamoDB all the time. there is no faster datasource than dynamoDB when you query by id, and this with appsync should be very fast but our tests shows that there is a overhead expected from appsync aggregation but also there is a random amount of inactivity of the lambda that we can't improve. we tried everything, including all possible caches, but it seams it's just lambda not being warm I guess, would like to get more light into this. ##### Post Metadata