vapor-docs/2.0/docs/core/overview.md

Core

Core provides some conveniences for common tasks.

Background

Easily create a background thread using background()

print("hello")

try background {
	print("world")	
}

Portal

Portals allow you to make async tasks blocking.

let result = try Portal.open { portal in
	someAsyncTask { result in
		portal.close(with: result)
	}
}

print(result) // the result from the async task

RFC1123

Create RFC1123 type dates.

let now = Date().rfc1123 // string 

You can also parse RFC1123 strings.

let parsed = Date(rfc1123: "Mon, 10 Apr 2017 11:26:13 GMT")