Top level arrays incorrectly typed

[morley92]

The below issue has recurred with the latest versions of the @anatine packages alongside NestJS 11.

#215

Here's a copy/paste from the original issue -

For createZodDto() usage such as:

const contactGroupsSchema = z.object({
  contactGroups: z.string().array().optional().describe('Filter by Xero Contact Groups'),
});
class ContactGroupsDto extends createZodDto(contactGroupsSchema) {}

produces

{
  "name": "contactGroups",
  "required": false,
  "in": "query",
  "description": "Filter by Xero Contact Groups",
  "schema": {
    "type": "array"
  }
}

rather than

{
  "name": "contactGroups",
  "required": false,
  "in": "query",
  "description": "Filter by Xero Contact Groups",
  "schema": {
    "type": "array",
    "items": {
      "type": "string"
    }
  }
}

[TupiC]

+1

[fdeh75]

Work for me. Use patch-package

patches/@anatine+zod-nestjs+2.0.12.patch

diff --git a/node_modules/@anatine/zod-nestjs/src/lib/create-zod-dto.js b/node_modules/@anatine/zod-nestjs/src/lib/create-zod-dto.js
index 6ddddaa..f47e103 100644
--- a/node_modules/@anatine/zod-nestjs/src/lib/create-zod-dto.js
+++ b/node_modules/@anatine/zod-nestjs/src/lib/create-zod-dto.js
@@ -65,10 +65,6 @@ const createZodDto = (zodSchema) => {
                 convertedSchemaObject.type = 'string'; // There ist no explicit null value in OpenAPI 3.0
                 convertedSchemaObject.nullable = true;
             }
-            // Array handling (NestJS references 'isArray' boolean)
-            if (convertedSchemaObject.type === 'array') {
-                convertedSchemaObject.isArray = true;
-            }
             // Exclusive minimum and maximum
             const { exclusiveMinimum, exclusiveMaximum } = schemaObject;
             if (exclusiveMinimum !== undefined) {

[Ginden]

I managed to get the same bug in Nest 10...

It seems like this commit by @danielsharvey broke things.

I'm not sure what the problem is exactly, though?