Enums

You can use the '@enum' reserved keyword to specify possible values of a request parameter or a model property. See more about it here.

Example #1

app.get('/path', (req, res) => {
    ...
    /*  #swagger.parameters['any_name'] = {
            in: 'query',
            description: 'Some description...',
            schema: {
                '@enum': ['arc', 'desc']
            }
    } */
   ...
});

Example #2 (reusable)

const doc = {
    ...
    components: {
        schemas: {
            Color: {
                '@enum': [
                    "black",
                    "white",
                    "red",
                    "green"
                ]
            }
        }
    }
};

app.get('/path', (req, res) => {
    ...
    /*  #swagger.parameters['any_name'] = {
            in: 'query',
            description: 'Some description...',
            schema: {
                $ref: '#/components/schemas/Color'
            }
    } */
   ...
});