flask restx enum model

Question

How to create an Enum api model in flask restx with one string field without other properties so that the following description is generated in swagger.yml?

definitions:
    Colors:
      type: string
      enum: [black, white, red, green, blue]

Maybe some hacks will help? Because now it seems like you can create an api model with properties only

Answer 1

Oh, so I find solution for my question)

Self-answered, lol

You can define api model via json schema description: https://flask-restx.readthedocs.io/en/latest/marshalling.html#define-model-using-json-schema

colors_api_model = api.schema_model('Colors', {
    'enum':
        ['black', 'white', 'red', 'green', 'blue'],
    'type': 'string'
})

Answer 2

For new comers, flask restx now supports an enum property for String type

        theme_color = api.model( "theme_color", {
            "appTheme": fields.String(description="UI primary colour",enum=["theme-red", "theme-pink", "theme-orange", "theme-yellow"])
        })

Example documentation here