Hi,
I am using akka http for graphql sangria subscription.
It is working fine in example application but while integrating graphql
subscription code with this
<https://github.com/sangria-graphql/sangria-relay-playground> simple query
mutation code it is giving compilation error.
Below is the code i'm trying to execute:
complete(
executor.prepare(queryAst, ctx, (), operation, variables)
.map { preparedQuery ⇒
ToResponseMarshallable(preparedQuery.execute()
.map(result ⇒ ServerSentEvent(result.compactPrint))
.recover { case NonFatal(error) ⇒
logger.error(error, "Unexpected error during event stream
processing.")
ServerSentEvent(error.getMessage)
})
}
It is showing error inline:
ToResponseMarshallable(preparedQuery.execute()
and i'm getting:
could not find implicit value for parameter _marshaller:
akka.http.scaladsl.marshalling.ToResponseMarshaller[akka.stream.scaladsl.Source[de.heikoseeberger.akkasse.ServerSentEvent,akka.NotUsed]]
Can some one help me to resolve this error
Thanks
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