date-time format field is generated as string type

Suppose we have a Date query param

@Get()
getNextDate(@Query('date') date: Date) { .. }

A generated swagger parameter definition for query param would be

"parameters": [
	{
		"in": "query",
		"name": "",
		"required": true,
		"format": "date-time",
		"type": "string"
	}
]

But swagger-typescript-codegen would type it as string

GetNextDate(parameters: {
        'date': string,
    } & CommonRequestOptions)

And when try to use it with Date, TS error would be raised Type 'Date' is not assignable to type 'string' e.g.

const date:Date =  new Date();
const res = await cl.GetDate({date: date});

[mtennoe]

We could consider doing the string union as a backwards compatible stop-gap solution, and then remove the | string part when going to the next major version

[mtennoe]

Thanks! Backwards compatibility is important so we could consider a solution that exposes a union type for dates, where the type would be Date | string, and then we could check for which type is being passed in from the caller side. The actual call would contain a string version of the date either way. This would maintain backwards compatibility, while making it easier for callers/consumers as well, where you wouldn’t have to manually do that stringification of the date

Thoughts?