Topics_
Allow groups of users to subscribe to a common topic and receive the same notifications.
2 min read
In Appwrite Messaging, you can use topics to deliver messages to groups of users at once.
Topics and targets
A user can have multiple targets, such as emails, phone numbers, and devices with your app installed. These targets can subscribe to a topic, so when messages are published to a topic, all subscribed targets receive the message.
Organizing topics
A topic should have semantic meaning. For example, a topic can represent a group of customers that receiving a common announcemennt or publishing public updates. It's important to keep privacy in mind when using topics. Prefer sending private information like chat messages by addressing individual targets attached to a user.
Topics are optimized for delivering the same message to large groups of users. If you need to deliver messages to all devices of the same user, you can find a user's targets by calling account.get().
Create a topic
You can create topics
Permissions
Before you can subscribe to a topic, a user needs the appropriate permission. You can set permission by navigating to Messaging > Topics > select a topic to configure > Subscription access.
Subscribe targets to a topic
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