如何在 FCM 通知中创建主题 [英] How To Create Topic in FCM Notifications

问题描述

我正在尝试 Firebase-Notification API，当我从控制台向应用程序发送下游消息时，该服务运行良好，但如何向主题注册用户发送消息?

I'm trying Firebase-Notification API the service is worked perfect when i send downstream message from console to app, but how to send message to topic registered users ?

我在安卓方面做过

FirebaseMessaging.getInstance().subscribeToTopic("TopicName");

但是当我尝试从控制台向主题发送下游消息时，它说

but when i try send downstream message from console to topic it's says

This project does not have any topics

我发现在映射主题后最多需要 1 天才能显示在 Firebase 控制台中

EDIT : i figured out that after mapping the topic it's take up to 1 day to show up in Firebase Console

推荐答案

首先，假设 IID_TOKEN 是您的注册令牌，而 TOPIC_NAME 是您要创建的主题，您需要通过向

First, given that IID_TOKEN is your registration token and TOPIC_NAME is the topic you want to create, you need to create topic by making a POST request to

https://iid.googleapis.com/iid/v1/IID_TOKEN/rel/topics/TOPIC_NAME

要检查您创建的主题，请对该 URL 发出 GET 请求

And to check your created Topics make a GET request on this URL

 https://iid.googleapis.com/iid/info/nKctODamlM4:CKrh_PC8kIb7O...clJONHoA?details=true

并在您的请求 HEADERS 中插入您的 API_KEY

and insert your API_KEY in your Request HEADERS

Authorization: key=YOUR_API_KEY

您的主题最多需要 1 天才会显示在 Firebase 控制台中，因此为了进行测试，您可以发出 curl 请求或使用诸如 高级 REST 客户端

Your topic will take up to 1 day to show up in Firebase console so for testing you can make curl request or use sofware like Advanced REST client

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