Schema Nullability Extensions

[martinbonnin]

Add Schema Nullability Extensions. This is similar to a @nonnull schema directive but works with lists.

Given the following SDL:

# schema.graphqls
type Query {
  random: Int
  list: [String]
  required: Int!
}

You can extend it like so:

# extra.graphqls
extend type Query {
  # make random non-nullable
  random: Int!
  # make list and list items non-nullable
  list: [String!]!
  # make required nullable
  required: Int
  # add a new field
  new: Float
}

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[BoD]

Very cool! Just to be sure, this isn't allowed in the spec, right? But would be cool if it was. Similar to allowing adding directives to enum values.

[martinbonnin]

this isn't allowed in the spec, right?

Indeed, this is not. allowed. Only new fields are allowed. This is an Apollo addition.