more type accurate arrays in the GraphQL schema

[chaoky]

Description

as discussed in https://github.com/payloadcms/payload/discussions/764

{
  slug: "landing",
  fields: [
    {
      name: "cards",
      type: "blocks",
      blocks: [cards],
      required: true,
    },
  ],
}

is outputting

type Landing {
  cards: [Landing_Cards]
}

instead of

type Foo {
  cards: [Landing_Cards!]!
}

• [x] I have read and understand the CONTRIBUTING.md document in this repository

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Checklist:

• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] Existing test suite passes locally with my changes
• [ ] I have made corresponding changes to the documentation

[chaoky]

should I just make the union type always non-nullable? is there a case where [null] will be returned?

[jmikrut]

Hey @chaoky — good question! There will never be a case where [null] will be returned, so yes, you can make the union type always non-nullable.

Thank you!

[chaoky]

I made every list element non nil, I honestly think that this should be the default in GraphQL, who's is returning [null]?

[jmikrut]

Merged! Thank you @chaoky!!!