AWS AppSync directives

Note

We now primarily support the APPSYNC_JS runtime and its documentation. Please consider using the APPSYNC_JS runtime and its guides here.

AWS AppSync exposes directives to facilitate developer productivity when writing in VTL.

Directive utils

#return(Object)

The #return(Object) allows you to prematurely return from any mapping template. #return(Object) is analogous to the return keyword in programming languages, as it will return from the closest scoped block of logic. Using #return(Object) inside of a resolver mapping template will return from the resolver. Additionally, using #return(Object) from a function mapping template will return from the function and will continue the run to either the next function in the pipeline or the resolver response mapping template.

#return

The #return directive exhibits the same behaviors as #return(Object), but null will be returned instead.