Persisted queries in SPQR GraphQL

Question

Does GraphQL-SPQR has support for PersistedQueries or not, if not what's the suggested way of handling persisted queries in SPQR.

Answer 1

I presume you're referring to SPQR Spring Starter here. It currently does not have this feature built-in. I believe only Apollo Engine (Link?) does. But you should be able to use it with any GraphQL server.

A post from Apollo blog says:

Automatic persisted queries — a built-in feature when using Apollo Link and Engine, works with any client or server

So you could have your SPQR-based server behind Apollo Engine, and get this and other features it offers.

I think you could also implement this specific feature yourself, relatively easily. As of v0.0.4 of SPQR Spring Starter you can replace the GraphQLServletExecutor (or GraphQLReactiveExecutor if you're using WebFlux, or GraphQLWebSocketExecutor if you're using subscriptions):

@Bean
public GraphQLServletExecutor graphQLExecutor(ServletContextFactory contextFactory) {
    return new CustomExecutorThatPersistsQueries();
}