Handling Default Values in Generated Zod Schemas

[ImEins]

Hello,

I'm working with an OpenAPI specification and have encountered an issue regarding default values when generating Zod schemas. Here's the scenario:

OpenAPI Definition
In my OpenAPI spec, I have a schema defined as follows:

components:
  schemas:
    RandomSchemaName:
      properties:
        random_column:
          type: boolean
          title: Random column
          default: false

When generating the Zod schema using Orval, the output looks like this:

random_column: zod.boolean().optional()

Expectation
I was expecting the default value to be included in the generated Zod schema, something like:

random_column: zod.boolean().default(false)

My Questions

1. Is the current behavior expected, or am I missing something in how default values are handled?

2. If this is the expected behavior, would modifying the generateZodValidationSchemaDefinition function like this be the correct approach to include default values?

if (schema.default !== undefined) {
  zodSchema.functions.push(['default', schema.default]);
}

3. If this isn't implemented yet, I’d be happy to contribute by helping implement this, but I want to ensure that updating only this function would address the issue.

I’d appreciate any guidance or clarification on this matter. Thanks for the fantastic tool!