main.swift

import PerfectHTTP
import PerfectHTTPServer
import Dispatch
let serial = DispatchQueue(label: "serial")
var mul = 1
struct NotEmpty: Codable {
	let str: String
	init() {
		str = serial.sync {
			let mulVal = String(repeating: "\(mul)", count: mul)
			mul += 1
			return mulVal
		}
	}
}
func handler(request: HTTPRequest, response: HTTPResponse) {
	try! response.setBody(json: NotEmpty())
	response.addHeader(.eTag, value: "\"thisisntreal\"")
	response.completed(status: .ok)
}
var routes = Routes()
routes.add(method: .get, uri: "/", handler: handler)
try HTTPServer.launch(name: "localhost",
					  port: 8181,
					  routes: routes,
					  responseFilters: [
						(PerfectHTTPServer.HTTPFilter.contentCompression(data: [:]), .high)])