Hands-On Server-Side Web Development with Swift

Making an HTTP PUT request

The editEntry(entry:) function creates a new URLSession task to upload the JSON object of the newly-updated JournalEntry object to the web application:

// Edit an existing entryfunc editEntry(entry: JournalEntry) {    print("INFO: Receiving modified entry: \(entry)")            guard let jsonData = try? JSONEncoder().encode(entry) else { return }            guard let id = entry.id else {        print("Error: Invalid ID")        return    }    let idString : String = "/admin/\(id)"    let journalUrl = URL(string: apiURL + idString)!    var request = URLRequest(url: journalUrl)    request.httpMethod = "PUT"    request.setValue("application/json", forHTTPHeaderField: "Content-Type") URLSession.shared.uploadTask(with: request, from: jsonData) { (data, response, error) in ...