Generated schemas are missing default values in case of array input fields with default values

[AndKiel]

The problem (current behaviour)

When a GraphQL schema includes input fields accepting arrays with default values, such as:

  someField: [String!]! = []

Then the generated TypeScript code will include an invalid line:

    someField: z.array(z.string()),

resulting in the schema rejecting undefined value during parsing. The GraphQL API request would still work when the input object is sent without such a property (lacks a value).

Expected behaviour

When generating schemas, such fields should either be generated with a default value or made optional, or both:

    someField: z.array(z.string()).default([]),

    someField: z.array(z.string()).optional(),

    someField: z.array(z.string()).default([]).optional(),

I've seen it for String, enum and object (another input type) arrays.