請問有人知道如何在post request加上header cookie嗎？

Ref : http://stackoverflow.com/questions/36372341/swift-http-request-with-parameters-in-header

var request = URLRequest(url: url)
request.setValue("secret-keyValue", forHTTPHeaderField: "secret-key")

URLSession.shared.dataTask(with: request) { data, response, error in }