將錯誤發送到FCM post swift時出現“error”：“InvalidRegistration”錯誤

Question

我正在調整工作設備到設備功能，以便向主題發送推送通知。 當我向FcmToken發送推送時，它工作得很好，但當我將它發送到某個主題時，我收到"error":"InvalidRegistration"錯誤。 此注冊是否與服務器密鑰相關，或者我缺少哪些注冊與請求一起發送？ 你能看出我在哪里錯了嗎？ 一如既往地多謝。

這是fcmToken的工作函數：

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()
        }

這是主題的一個：

    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

我終於找到了問題所在。 主題不能像我想象的那樣在樹中定義，而且我在開始時缺少/從"to" : "topics/Bologna/Shop-promotions"到"to" : "/topics/Bologna-Shop-promotions"解決了我的問題。 我實際上通過在訂閱主題"Bologna/Shop-promotions"檢查錯誤並通過將其更改為"Bologna-Shop-promotions"或"/topics/Bologna-Shop-promotions"來修復它。 希望這會有助於他人。