Hi AWS folks! I've just been stuck on a failing CloudFormation deployment for a while. One of my AWS::AppSync::FunctionConfiguration resources was failing with the message The code contains one or more errors.
. It is one of the newer JS resolvers types (as opposed to VTL). After some trial and error, I determined that it was because I was using the in operator. However, the AppSync docs do not state that this operator is not supported. Perhaps someone can confirm this and, if I am correct, update the docs?