Parsing fails, requiring "TYPE must be string"

[TransAMrit]

api 6.1.0 is failing when validating my schema, tripping up on fields that can be null. When I instead tried with the openapi-generator tool, it didn't complain about building the SDK - so I don't really think the schema is invalid, although I'm open to all input!

Here's a snippet of the output:

node:internal/process/promises:288
            triggerUncaughtException(err, true /* fromPromise */);
            ^

SyntaxError: OpenAPI schema validation failed.

TYPE must be string

  113 |           {
  114 |             "schema": {
> 115 |               "type": [
      |                       ^ 👈🏽type must be string
  116 |                 "number",
  117 |                 "null"
  118 |               ],

TYPE must be string

  760 |                           },
  761 |                           "caption": {
> 762 |                             "type": [
      |                                     ^ 👈🏽type must be string
  763 |                               "null",
  764 |                               "string"
  765 |                             ]

Here's a snippet of the OpenAPI 3.0.3 schema:

            "get": {
                "summary": "List all attributes",
                "tags": [
                    "attribute"
                ],
                "parameters": [
                    {
                        "schema": {
                            "type": "number",
                            "default": 0
                        },
                        "in": "query",
                        "name": "offset",
                        "required": false
                    },
                    {
                        "schema": {
                            "type": [
                                "number",
                                "null"
                            ],
                            "default": null
                        },
                        "in": "query",
                        "name": "count",
                        "required": false
                    },

Thanks for any advice.

[erunion]

Hi! This is failing because OpenAPI 3.0.x does not support type arrays like that. That was introduced in OpenAPI 3.1. If you change the openapi property in your file to openapi: 3.1 it should work.

Interesting that it didn't complain about that when generating the SDK though.