如何从Google App Engine应用程序发送Firebase云消息

Question

如何从Google App Engine /云端点应用程序发送Firebase云消息？

Android Studio会自动生成以下代码来发送Google Cloud Message。虽然可以使用相同的代码发送FCM，但您不能设置“通知”或“优先级”或类似新FCM使用的代码。

是否存在Gradle导入或者如何在App Engine应用程序中使用Firebase云消息传递的示例，以便您可以轻松地执行诸如设置消息，通知，优先级等内容？

这是Android的工作室云端点自动为您生成当前：

// Gradle dependency: 
compile 'com.google.gcm:gcm-server:1.0.0' 

/** 
    * Api Keys can be obtained from the google cloud console 
    */ 
    private static final String API_KEY = System.getProperty("gcm.api.key"); 

    /** 
    * Send to the first 10 devices (You can modify this to send to any number of devices or a specific device) 
    * 
    * @param message The message to send 
    */ 
    public void sendMessage(@Named("message") String message) throws IOException { 
     if (message == null || message.trim().length() == 0) { 
      log.warning("Not sending message because it is empty"); 
      return; 
     } 
     // crop longer messages 
     if (message.length() > 1000) { 
      message = message.substring(0, 1000) + "[...]"; 
     } 
     Sender sender = new Sender(API_KEY); 

     Message msg = new Message.Builder().addData("message", message).build(); 
     List<RegistrationRecord> records = ofy().load().type(RegistrationRecord.class).limit(10).list(); 
     for (RegistrationRecord record : records) { 
      Result result = sender.send(msg, record.getRegId(), 5); 
      if (result.getMessageId() != null) { 
       log.info("Message sent to " + record.getRegId()); 
       String canonicalRegId = result.getCanonicalRegistrationId(); 
       if (canonicalRegId != null) { 
        // if the regId changed, we have to update the datastore 
        log.info("Registration Id changed for " + record.getRegId() + " updating to " + canonicalRegId); 
        record.setRegId(canonicalRegId); 
        ofy().save().entity(record).now(); 
       } 
      } else { 
       String error = result.getErrorCodeName(); 
       if (error.equals(Constants.ERROR_NOT_REGISTERED)) { 
        log.warning("Registration Id " + record.getRegId() + " no longer registered with GCM, removing from datastore"); 
        // if the device is no longer registered with Gcm, remove it from the datastore 
        ofy().delete().entity(record).now(); 
       } else { 
        log.warning("Error when sending message : " + error); 
       } 
      } 
     } 
    } 

Answer 1

目前旗下有用于从应用服务器发送的邮件没有火力地堡客户端。您应该使用记录的协议here发送带有来自终端的JSON有效负载的原始HTTP请求。 server reference显示您可以使用哪些参数，其中包括优先级。