Uploading attached files

Note

You can add attachments in the Push API using the Sending push messages operation (the attachments parameter).

Configure uploading attached files in push notifications by calling the downloadAttachmentsForNotificationRequest method (objective-c/swift):

Objective-C
@implementation NotificationService

- (void)didReceiveNotificationRequest:(UNNotificationRequest *)request withContentHandler:(void (^)(UNNotificationContent * _Nonnull))contentHandler {
    self.contentHandler = contentHandler;
    self.bestAttemptContent = [request.content mutableCopy];

    [AMPAppMetricaPush setExtensionAppGroup:@"EXTENSION_AND_APP_SHARED_APP_GROUP_NAME"];
    [AMPAppMetricaPush handleDidReceiveNotificationRequest:request];

    [AMPAppMetricaPush downloadAttachmentsForNotificationRequest:request
                                                           callback:^(NSArray<UNNotificationAttachment *> *attachments, NSError *error) {
                                                               if (error != nil) {
                                                                   NSLog(@"Error: %@", error);
                                                               }
                                                               [self completeWithBestAttemptAndAttachments:attachments];
                                                           }];
}

- (void)serviceExtensionTimeWillExpire {
    [self completeWithBestAttemptAndAttachments:nil];
}

- (void)completeWithBestAttemptAndAttachments:(NSArray<UNNotificationAttachment *> *)attachments
{
    @synchronized (self) {
        if (self.contentHandler != nil) {
            if (attachments != nil) {
                self.bestAttemptContent.attachments = attachments;
            }
            self.contentHandler(self.bestAttemptContent);
            self.contentHandler = nil;
        }
    }
}

@end
Swift
class NotificationService: UNNotificationServiceExtension {

    private var contentHandler: ((UNNotificationContent) -> Void)?
    private var bestAttemptContent: UNMutableNotificationContent?
    private let syncQueue = DispatchQueue(label: "NotificationService.syncQueue")

    override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
        self.contentHandler = contentHandler
        self.bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)

        // ...

        AppMetricaPush.downloadAttachments(for: request) { attachments, error in
            if let error = error {
                print("Error: \(error)")
            }
            self.completeWithBestAttempt(attachments: attachments)
        }
    }

    override func serviceExtensionTimeWillExpire() {
        completeWithBestAttempt(attachments: nil)
    }

    func completeWithBestAttempt(attachments: [UNNotificationAttachment]?) {
        syncQueue.sync {
            if let contentHandler = contentHandler, let bestAttemptContent = bestAttemptContent {
                if let attachments = attachments {
                    bestAttemptContent.attachments = attachments
                }
                contentHandler(bestAttemptContent)
                self.bestAttemptContent = nil
                self.contentHandler = nil
            }
        }
    }

}

If you didn't find the answer you were looking for, you can use the feedback form to submit your question. Please describe the problem in as much detail as possible. Attach a screenshot if possible.

Contact support