TLS example?

[JetForMe]

I just tried setting up a quick TLS-auth-based test, looking like this, and I get a run-time error: "Fatal error: TLSConfiguration.privateKey is not supported. You can still use this configuration option on macOS if you initialize HTTPClient with a MultiThreadedEventLoopGroup. Please note that using MultiThreadedEventLoopGroup will make AsyncHTTPClient use NIO on BSD Sockets and not Network.framework (which is the preferred platform networking stack)."

I'm developing this on macOS but it will deploy on Linux.

	func
	testSimplePush()
		async
		throws
	{
		let client = APNSClient(
			configuration: .init(
				authenticationMethod: .tls(
					privateKey: .file("../Certs/Certificates.p12"),
					certificateChain: []
				),
				environment: .sandbox
			),
			eventLoopGroupProvider: .createNew,
			responseDecoder: JSONDecoder(),
			requestEncoder: JSONEncoder(),
			byteBufferAllocator: .init()
		)
		defer
		{
			client.shutdown
			{ _ in
				Self.logger.error("Failed to shutdown APNSClient")
			}
		}
		
		struct Payload: Codable {}

		try await client.sendAlertNotification(
			.init(
				alert: .init(
					title: .raw("Simple Alert"),
					subtitle: .raw("Subtitle"),
					body: .raw("Body"),
					launchImage: nil
				),
				expiration: .immediately,
				priority: .immediately,
				topic: "com.app.bundle",
				payload: Payload()
			),
			deviceToken: "device-token"//,
//			deadline: .nanoseconds(Int64.max),
//			logger: Self.logger
		)
	}

[JetForMe]

Thanks to @gwynne in the Vapor Discord, I've put together this working sample…

import APNS
import Foundation
import Logging
import NIOSSL

…
func
testSimplePush()
    async
    throws
{
    //  Find your private key & cert file, exported from Keychain as .p12…
    
    let certs = URL(fileURLWithPath: #filePath, isDirectory: false)
        .deletingLastPathComponent()
        .deletingLastPathComponent()
        .deletingLastPathComponent()
        .deletingLastPathComponent()
        .appendingPathComponent("Certs")
        .appendingPathComponent("Certificates.p12")
    Self.logger.info("Certs: \(certs.path)")
    
    let certBundle = try NIOSSLPKCS12Bundle(file: certs.path)
    let client = APNSClient(
        configuration: .init(
            authenticationMethod: .tls(
                privateKey: .privateKey(certBundle.privateKey),
                certificateChain: certBundle.certificateChain.map { .certificate($0) }
            ),
            environment: .sandbox
        ),
        eventLoopGroupProvider: .shared(MultiThreadedEventLoopGroup.singleton),
        responseDecoder: JSONDecoder(),
        requestEncoder: JSONEncoder(),
        byteBufferAllocator: .init()
    )
    defer
    {
        client.shutdown
        { inError in
            if let error = inError
            {
                Self.logger.error("Failed to shutdown APNSClient: \(String(describing: error))")
            }
        }
    }
    
    struct Payload: Codable {}
    
    try await client.sendAlertNotification(
        .init(
            alert: .init(
                title: .raw("Simple Alert"),
                subtitle: .raw("Subtitle"),
                body: .raw("Body"),
                launchImage: nil
            ),
            expiration: .none,
            priority: .immediately,
            topic: "<your app’s bundle ID>",
            payload: Payload()
        ),
        deviceToken: "<32 hex bytes>"
    )
}

static  let logger              =   Logger(label: "Tests")