在用户之间发送FCM推送

Question

嗨，我希望从Android应用向特定客户端发送推送消息。到目前为止，从邮递员那里获得了成功。但是如何将帖子翻译为android应用？

我需要将帖子发送至：https://fcm.googleapis.com/fcm/send

这是示例消息：

{
 "to" : "dLVCgODdwqw:APA91bHz3kb0kyhs0sdf8THHE0DsdfVtHM5Z",
 "collapse_key" : "type_a",
 "notification" : {
     "body" : "Body",
     "title": "Title"
 },
 "data" : {
     "body" : "Body of Notification in Data",
     "title": "Title of Notification in Title",
     "key_1" : "Value for key_1",
     "key_2" : "Value for key_2"
 }
}