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Type Subscription must define one or more fields

See original GitHub issue

Hey 👋🏼 Support for multiple schemas works well! 🚀

The issue I encountered was only this one:

GraphQLError: Type Subscription must define one or more fields.
    at SchemaValidationContext.reportError (poc-platformatic/node_modules/graphql/type/validate.js:73:7)
    at validateFields (poc-platformatic/node_modules/graphql/type/validate.js:271:13)
    at validateTypes (poc-platformatic/node_modules/graphql/type/validate.js:244:7)
    at validateSchema (poc-platformatic/node_modules/graphql/type/validate.js:43:3)
    at Object.<anonymous> (poc-platformatic/node_modules/mercurius/index.js:193:36)
    at poc-platformatic/node_modules/fastify/lib/hooks.js:152:22
    at _encapsulateThreeParam (poc-platformatic/node_modules/avvio/boot.js:557:7)
    at Boot.timeoutCall (poc-platformatic/node_modules/avvio/boot.js:453:5)
    at Boot.callWithCbOrNextTick (poc-platformatic/node_modules/avvio/boot.js:435:19)
    at Task.release (poc-platformatic/node_modules/fastq/queue.js:149:16) {
  path: undefined,
  locations: [ { line: 220, column: 1 } ],
  extensions: [Object: null prototype] {}
}

I was able to skip it since I’m not interested yet in subscriptions, disabling them with the config core.events set to false.

Anyway, I think in this case plaformatic doesn’t catch the error, that popped up in the graphql library and so it’s quite hard to understand. Debugging it locally I was able to follow the function calls until they arrived at the process.nextTick inside avvio.

It’s doable to catch and log this error inside platformatic? 😊