Hello @maxwell
Welcome to the Prismic community, and thanks for reaching out to us.
GraphQuery is different than GraphQL. GraphQuery is an updated version of fetchLinks which allows you to retrieve content from a Content Relationship field using the REST API. Unlike GraphQL, GraphQuery does not accept arguments.
GraphQL, however, is an alternative to the REST API. Our GraphQL API is today relying on GET, so when you fire a request, you’re limited by GET constraints. For example, limitations in terms of character. With graphql too, you need to break up queries by not going too many levels deep can help.
You might want to check this discussion on this thread: 413 Request Entity Too Large - #32 by prismic5
Let me know if you have any further questions.
Thanks,
Priyanka