Gatsby: Schema customisation: defining fields for the 'Query' root type

[MorrisonCole]

Summary

I can't determine how to define types for the Query type Gatsby generates. I want to do this because, by default, Gatsby generates all fields as nullable, making working with Typescript very verbose!

Relevant information

Using the blog starter project, I have the following query:

query {
  site {
    siteMetadata {
      title
      description
      author
    }
  }
}

I have defined custom non-nullable types for some data I know will always be present, e.g.,:

gatsby-node.js:

exports.createSchemaCustomization = ({ actions }) => {
  const { createTypes } = actions
  const typeDefs = `
    type Site implements Node {
      siteMetadata: SiteSiteMetadata!
    }

    type SiteSiteMetadata {
      title: String!
      description: String!
      author: String!
    }
  `
  createTypes(typeDefs)
}

I want to define site as non-nullable too, but when I add for example:

type Query {
  site: Site!
}

It appears to be overwritten.

TL;DR: Is it possible to define custom fields for the root Query type?

[gatsbot[bot]]

Hiya!

This issue has gone quiet. Spooky quiet. 👻

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[MorrisonCole]

Not stale! 👍

Still wondering how to do this :)

[gatsbot[bot]]

Hey again!

It’s been 30 days since anything happened on this issue, so our friendly neighborhood robot (that’s me!) is going to close it.

Please keep in mind that I’m only a robot, so if I’ve closed this issue in error, I’m HUMAN_EMOTION_SORRY. Please feel free to reopen this issue or create a new one if you need anything else.

As a friendly reminder: the best way to see this issue, or any other, fixed is to open a Pull Request. Check out gatsby.dev/contribute for more information about opening PRs, triaging issues, and contributing!

Thanks again for being part of the Gatsby community!

[stefanprobst]

you should be able to use createResolvers to add custom root query fields, see https://www.gatsbyjs.org/docs/schema-customization/#custom-query-fields

[vladar]

Thank you for opening this, @MorrisonCole

We're marking this issue as answered and closing it for now but please feel free to reopen this and comment if you would like to continue this discussion. We hope we managed to help and thank you for using Gatsby! 💜