UNNotificationServiceExtension does't work with Firebase Cloud Functions - ios

Question

I integrated UNNotificationServiceExtension into the application, but I do not have additional content such as images. I also thought that I did not correctly implement the loading of pictures and therefore I tried to change the name and body payload for the test. But it did not give me any results. I implement Push Notification through Firebase console and through Firebase cloud funcitons. I also read several posts on this topic, but they did not help me. Please tell me how it can be fixed?
class NotificationService: UNNotificationServiceExtension {
var contentHandler: ((UNNotificationContent) -> Void)?
var bestAttemptContent: UNMutableNotificationContent?
override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: #escaping (UNNotificationContent) -> Void) {
self.contentHandler = contentHandler
bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)
if let bestAttemptContent = bestAttemptContent {
// Modify the notification content here...
bestAttemptContent.title = "Apple [modified]"
bestAttemptContent.body = "Xcode"
let attachmentStorage = AttachmentStorage()
if let jpeg = request.content.userInfo["image"] as? String {
guard let url = URL(string: jpeg) else {
contentHandler(bestAttemptContent)
return
}
debugPrint("url", url)
attachmentStorage.store(url: url, extension: "jpeg") { (path, error) in
if let path = path {
do {
let attachment = try UNNotificationAttachment(identifier: "image", url: path, options: nil)
bestAttemptContent.attachments = [attachment]
contentHandler(bestAttemptContent)
return
} catch {
contentHandler(bestAttemptContent)
return
}
}
}
}
if let png = request.content.userInfo["png"] as? String {
guard let url = URL(string: png) else {
contentHandler(bestAttemptContent)
return
}
attachmentStorage.store(url: url, extension: "png") { (path, error) in
if let path = path {
do {
let attachment = try UNNotificationAttachment(identifier: "image", url: path, options: nil)
bestAttemptContent.attachments = [attachment]
contentHandler(bestAttemptContent)
return
} catch {
contentHandler(bestAttemptContent)
return
}
}
}
}
contentHandler(bestAttemptContent)
}
}
override func serviceExtensionTimeWillExpire() {
// Called just before the extension will be terminated by the system.
// Use this as an opportunity to deliver your "best attempt" at modified content, otherwise the original push payload will be used.
if let contentHandler = contentHandler, let bestAttemptContent = bestAttemptContent {
contentHandler(bestAttemptContent)
}
}
}
class AttachmentStorage {
func store(url: URL, extension: String, completion: ((URL?, Error?) -> ())?) {
// obtain path to temporary file
let filename = ProcessInfo.processInfo.globallyUniqueString
let path = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent("\(filename).\(`extension`)")
// fetch attachment
let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
let _ = try! data?.write(to: path)
completion?(path, error)
}
task.resume()
}
}
Payload from cloud functions
const payload = {
notification: {
title: 'It’s decision time!',
body: 'text'
sound: 'default',
mutable_content: true
},
data: {
image: "https://example.com/static_logos/320x320.png"
}
};
Updated: I also read this issue

Answer 1

I fixed it.
I was sending a mutable_content as true. But oddly the Firebase engineers are expecting a String ie "true" instead
const payload = {
notification: {
title: 'It’s decision time!',
body: "text"
sound: 'default',
mutable_content: 'true'
},
data: {
image: "example"
}
};