添加好友成功的通知

[water2060]

作者你好。我的业务里面有个需求：当同意添加对方为好友时，业务系统需要执行一定的逻辑。这个IM怎么修改，通知到业务系统。能简单说一些吗？

[JamesChenX]

In simple words, there are many ways to implement the feature according to your business requirements.

1. The simplest way: For clients, you can use notificationService.addNotificationListener to listen to any notifications and then implement your business logic. e.g.:

notificationService.addNotificationListener { 
    notification ->
    if (!notification.relayedRequest.hasUpdateFriendRequestRequest()) {
        return@addNotificationListener
    }
    val updateFriendRequestRequest = notification.relayedRequest.updateFriendRequestRequest
    when (updateFriendRequestRequest.responseAction) {
        ResponseAction.ACCEPT -> {
            // do something when the recipient accepts the friend requests sent by the current user.
        }
        ResponseAction.DECLINE -> {
            // do something
        }
        ResponseAction.IGNORE ->  {
            // do something
        }
        ResponseAction.UNRECOGNIZED -> {
            throw IllegalArgumentException("Unrecognized response action: ${updateFriendRequestRequest.responseAction}")
        }
    }
}

2. Write a plugin to implement the interface im.turms.service.infra.plugin.extension.ClientRequestHandler for turms-service, and then you can do anything you want to view/modify the client request and response/notification in the plugin as you can control the code, you can control anything.

3. Almost all proto models include a field customAttributes, which is designed for developers to send any arbitrary data between the Turms clients and servers to implement your business logic.

[water2060]

这个是对于客户端的监听。我是想 IM服务端 通知给 业务服务端，