"error"：向 FCM post swift 发送消息时出现"InvalidRegistration"错误

Question

我正在使工作设备适应设备功能，以便向主题发送推送通知。当我向 FcmToken 发送推送时，它运行良好，但是当我将其发送到主题时，我收到"error":"InvalidRegistration"错误。此注册是否与服务器密钥相关，或者我缺少与请求一起发送的注册？ 你能看出我错在哪里吗？一如既往地非常感谢。

这是fcmToken的工作函数：

static func sendPushNotification(to receiverToken: String, title: String, subtitle: String, body: String) {
            let serverKey = firebaseServerKey // AAAA8c3j2...
//            let topic = "/topics/<your topic here>"  // replace it with partnerToken if you want to send a topic
            let url = NSURL(string: "https://fcm.googleapis.com/fcm/send")
        let postParams: [String : Any] = [
                "to": receiverToken,
                "notification": [
//                    "badge" : 1, sendig the badge number, will cause aglitch
                    "body": body,
                    "title": title,
                    "subtitle": subtitle,
                    "sound" : true, // or specify audio name to play
                    "content_available": true, // this will call didReceiveRemoteNotification in receiving app, else won't work
                    "priority": "high"
//                    "click_action" : "🚀", // action when user click notification (categoryIdentifier)
                ],
                "data" : [
                    "data": "ciao",
            ]
                ]
            let request = NSMutableURLRequest(url: url! as URL)
            request.httpMethod = "POST"
        request.setValue("key=(serverKey)", forHTTPHeaderField: "Authorization")
        request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
            do {
//                request.httpBody = try JSONSerialization.data(withJSONObject: postParams, options: JSONSerialization.WritingOptions())
                request.httpBody = try JSONSerialization.data(withJSONObject: postParams, options: [.prettyPrinted]) // working
                print("My paramaters: (postParams)")
            } catch {
                print("Caught an error: (error)")
            }

            let task = URLSession.shared.dataTask(with: request as URLRequest) { (data, response, error) in
                if let realResponse = response as? HTTPURLResponse {
                    if realResponse.statusCode != 200 {
                        print("Not a 200 response")
                    }
                }
                if let postString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue) as String? {
                    print("POST: (postString)")
                }
            }
            task.resume()
        }

这是主题：

    static func sendTopicPushNotification(to topic: String, title: String, subtitle: String, body: String) {
        let serverKey = firebaseServerKey // AAAA8c3j2...
        //            let topic = "/topics/<your topic here>"  // replace it with partnerToken if you want to send a topic
        let url = NSURL(string: "https://fcm.googleapis.com/fcm/send")
        let postParams: [String : Any] = [
            "priority": "high",
            "notification": [
                //                    "badge" : 1, sendig the badge number, will cause aglitch
                "body": body,
                "title": title,
                "subtitle": subtitle,
                "text": "some text",
                "sound" : true, // or specify audio name to play
                //                    "click_action" : "🚀", // action when user click notification (categoryIdentifier)
            ],
            "to" : "topics/Bologna/Shop-promotions"
//            "data" : [
////                "data": "ciao",
//                "body": body,
//                "title": title,
//                "subtitle": subtitle,
//            ]
        ]

        let request = NSMutableURLRequest(url: url! as URL)
//        request.httpMethod = "POST" // error: POST: {"error":"InvalidParameters: Bad topic or filter provided"}
       request.httpMethod = "POST"
        request.setValue("key=(serverKey)", forHTTPHeaderField: "Authorization")
        request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
        do {
            //                request.httpBody = try JSONSerialization.data(withJSONObject: postParams, options: JSONSerialization.WritingOptions())
            request.httpBody = try JSONSerialization.data(withJSONObject: postParams, options: [.prettyPrinted]) // working
            print("sendTopicPushNotification : My paramaters: (postParams)")
        } catch {
            print("sendTopicPushNotification : Caught an error: (error)")
        }

        let task = URLSession.shared.dataTask(with: request as URLRequest) { (data, response, error) in
            if let realResponse = response as? HTTPURLResponse {
                if realResponse.statusCode != 200 {
                    print("sendTopicPushNotification : Not a 200 response : (realResponse)")
                }
                print("sendTopicPushNotification : response : (realResponse)")
            }
            if let postString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue) as String? {
                print("sendTopicPushNotification : POST: (postString)")
            }
        }
        task.resume()
    }

Answer 1

我终于找到了问题所在。主题不能像我想象的那样在树中定义，一开始我错过了/，所以从"to" : "topics/Bologna/Shop-promotions"更改为"to" : "/topics/Bologna-Shop-promotions"解决了我的问题。我实际上是通过在下标"Bologna/Shop-promotions"时检查错误来发现的，并通过将其更改为"Bologna-Shop-promotions"或"/topics/Bologna-Shop-promotions"来修复它。希望这对其他人有所帮助。