Scala. Sangria.Print json schema

Question

I am using GraphQL on Scala via Sangria. Also I am using apollo-codegen.

I want to define my schema once, so I export my scheme from backend to frontend by:

schema.renderPretty

The problem is sangria's renderPretty prints schema in schemaAst format. But apollo-codegen expects json format.

How to make sangria render schema in json format? Or maybe painless convert schemaAst to json via SBT?

score 5 · Accepted Answer · answered Apr 16 '18 at 17:42

5

I think you are referring to the introspection JSON. With Sangria you can get it by executing an introspection query:

Executor.execute(schema, sangria.introspection.introspectionQuery)

answered Apr 16 '18 at 17:42

tenshi

Is it possible to get `String`, not `Future` like `renderPretty` do? – Oleg Apr 17 '18 at 07:53
You get a `Future[Json]` as a result of the execution. You can `Await` on this future, but at the moment is not possible to to get sync result. – tenshi Apr 17 '18 at 07:58
I got it. Thank you – Oleg Apr 17 '18 at 07:59

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