The schema file describes your domain objects, relationships and the supported queries.


Hydra input schema is a dialect of the GraphQL schema definition language enriched with the additional directives and built-in primitive types described in what follows. The input schema is consumed by hydra-cli codegen to generate the entity classes for the database and the final API GraphQL schema served by the server. The latter is auto-generated and can be previewed by running
$ hydra-cli preview && cat apipreview.graphql
In windows, you should run:
$ hydra-cli preview && type apipreview.graphql
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