import APNsKit

// Setting header fields is optional. Refer (#1) for configurable header fields of APNs request.
let header = APNsRequest.Header(priority: .p10, topic: "<#The topic of the remote notification#>")

// Create a APNs payload. See Apple's Payload Key Reference (#2) for its specifications.
let payload = APNsPayload(title: "Hello World!", body: "This is APNsKit.", contentAvailable: 1)
let request = APNsRequest(port: .p2197,
                          server: .development,
                          deviceToken: "<#The target device token#>",
                          header: header,
                          payload: payload)

// Create a connection that wraps up URLSession and its authentication challenges.
if let connection = try? Connection(p12FileName: "<#Your p12 file name#>", passPhrase: "<#The pass phrase for the file#>") {
    
    // Send the request to the APNs server. The connection has to be retained until the server responses.
    connection.send(request: request, resultHandler: { result in
        switch result {
        case .success:
            print("Succeeded!")
        case .failure(let code, let message):
            print("Failed to send: \(code), \(message)")
        }
    })
}