使用fcm的Firebase Live分数推送通知

Question

我正在开发一个应用程序，一个实时评分应用程序，允许用户订阅他们最喜欢的团队，使用FCM主题订阅，我需要帮助来向该用户发送通知。

现在我可以定期向设备发送通知，我可以通过控制台，管理node.js，rest api手动发送通知，甚至对于用户订阅的订阅主题，我也可以列出特定注册id的订阅。

所以..。我的用户订阅的主题是球队ids (足球队)，我想做的是当一些游戏事件发生时通知订阅特定主题的用户，例如，目标，游戏状态(比赛开始，中场休息，下半场开始，比赛结束)这是推送通知系统的一个非常常见的用例。

我将我的游戏数据存储在firebase数据库中，我从外部提供商那里获得它，并“实时”更新，如下所示：

{
        "AwayTeamShort": "ANZ",
        "League": "Russian Premier League",
        "comp_id": "1457",
        "events": [
            {
                "assist": "G. Gabulov",
                "assist_id": "29779",
                "extra_min": "",
                "id": "23177131",
                "minute": "46",
                "player": "M. Kazankov",
                "player_id": "113277",
                "result": "",
                "team": "localteam",
                "type": "subst"
            },
            {
                "assist": "",
                "assist_id": "",
                "extra_min": "",
                "id": "23177132",
                "minute": "57",
                "player": "I. Yediev",
                "player_id": "",
                "result": "",
                "team": "localteam",
                "type": "yellowcard"
            },
            {
                "assist": "K. Bazelyuk",
                "assist_id": "269373",
                "extra_min": "",
                "id": "23177133",
                "minute": "57",
                "player": "A. Katsaev",
                "player_id": "92363",
                "result": "",
                "team": "visitorteam",
                "type": "subst"
            },
            {
                "assist": "J. Lipartia",
                "assist_id": "41506",
                "extra_min": "",
                "id": "23177134",
                "minute": "58",
                "player": "K. Mamtov",
                "player_id": "29851",
                "result": "",
                "team": "visitorteam",
                "type": "subst"
            },
            {
                "assist": "E. Balyajkin",
                "assist_id": "6770",
                "extra_min": "",
                "id": "23177135",
                "minute": "67",
                "player": "N. Kalinski",
                "player_id": "",
                "result": "",
                "team": "localteam",
                "type": "subst"
            },
            {
                "assist": "R. Koryan",
                "assist_id": "123728",
                "extra_min": "",
                "id": "23177136",
                "minute": "68",
                "player": "M. Markovic",
                "player_id": "139251",
                "result": "[1-0]",
                "team": "localteam",
                "type": "goal"
            },
            {
                "assist": "P. Yakovlev",
                "assist_id": "82061",
                "extra_min": "",
                "id": "23177137",
                "minute": "71",
                "player": "P. Dolgov",
                "player_id": "309265",
                "result": "",
                "team": "visitorteam",
                "type": "subst"
            },
            {
                "assist": "R. Koryan",
                "assist_id": "123728",
                "extra_min": "",
                "id": "23177138",
                "minute": "72",
                "player": "V. Nikiforov",
                "player_id": "26213",
                "result": "",
                "team": "localteam",
                "type": "subst"
            },
            {
                "assist": "",
                "assist_id": "",
                "extra_min": "",
                "id": "23177139",
                "minute": "89",
                "player": "A. Dovbnya",
                "player_id": "123582",
                "result": "",
                "team": "localteam",
                "type": "yellowcard"
            },
            {
                "assist": "",
                "assist_id": "",
                "extra_min": "2",
                "id": "231771310",
                "minute": "90",
                "player": "T. Phibel",
                "player_id": "58795",
                "result": "",
                "team": "visitorteam",
                "type": "yellowcard"
            },
            {
                "assist": "",
                "assist_id": "",
                "extra_min": "2",
                "id": "231771311",
                "minute": "90",
                "player": "S. Bryzgalov",
                "player_id": "122214",
                "result": "",
                "team": "visitorteam",
                "type": "yellowcard"
            },
            {
                "assist": "V. Nikiforov",
                "assist_id": "26213",
                "extra_min": "5",
                "id": "231771312",
                "minute": "90",
                "player": "N. Kalinski",
                "player_id": "",
                "result": "[2-0]",
                "team": "localteam",
                "type": "goal"
            }
        ],
        "formatted_date": "08.08.2017",
        "ft_score": "[2-0]",
        "ht_score": "[0-0]",
        "id": "2211727",
        "localteam_id": "14810", 
        "localteam_name": "SKA Khabarovsk",
        "localteam_score": "2",
        "region": "Russia",
        "season": "2017/2018",
        "status": "FT",
        "time": "08:00”,
        "venue": "Stadion imeni V.I. Lenina (Khabarovsk)",
        "venue_city": "Khabarovsk",
        "venue_id": "88600",
        "visitorteam_id": "14786",
        "visitorteam_name": "FK Anzi Makhackala",
        "visitorteam_score": "0",
        "week": "5"
    }

用户在上面的json中订阅团队id，团队id是visitorteam_id，localteam_id，这些id对于该团队来说总是相同的，无论是访问者还是本地。

我对实例ID API的订阅如下所示(然后我将其存储在数据库中，但与此问题无关)：

{
  "application":"com.iid.example",
  "authorizedEntity":"123456782354",
  "platform":"Android",
  "attestStatus":"ROOTED",
  "appSigner":"1a2bc3d4e5",
  "connectionType":"WIFI",
  "connectDate":"2017-08-07
  "rel":{
    "topics":{
      "42332":{"addDate":"2017-08-07"},
      "14810":{"addDate":"2017-08-07"},
      "14786":{"addDate":"2017-08-07"}

    }
  }
}

所以..。如何向订阅了特定主题(团队id)的设备通知他们订阅的团队正在进行的游戏中的目标？

Ps:我知道解决方案可能很复杂，但欢迎大家提供帮助，举例说明

Answer 1

尝试使用Firebase云函数。https://firebase.google.com/docs/functions/use-cases

您可以创建一个Firebase Cloud函数来“订阅”更改，然后自动触发推送通知。