如何在Node js中使用FCM向多个Android设备发送消息?

问题描述

我尝试将消息发送到单个设备，即发送到单个注册ID，它工作正常，但是当尝试添加多个注册ID时，出现"InvalidServerResponse"错误.例如适用于regTokens ='regId1';但是不适用于regTokens = ['regId1'，'regId2'];

I tried sending message to single device i.e. to single Registration id and it worked fine but when tried to add multiple Registration Ids it gives 'InvalidServerResponse' error.e.g. Works for regTokens = 'regId1';But doesn't work for regTokens = ['regId1','regId2'];

var FCM = require('fcm-node');
// Add API Key
var fcm = new FCM('<server-key>');

exports.sendMessage = function (regTokens, messageToSend, callback) {
  var message = { //this may vary according to the message type (single recipient, multicast, topic, et cetera)
      to: regTokens,

      data: {
        ar_message: messageToSend
      }
  };

    fcm.send(message, function(err, response){
        if (err) {
            console.log("Something has gone wrong!",err);
        } else {
            console.log("Successfully sent with response: ", response);
        }
        callback(err, 'Success');
      });
}

推荐答案

更新:对于 v1 ，似乎不再支持 registration_ids .强烈建议使用主题代替.

Update: For v1, it seems that registration_ids is no longer supported. It is strongly suggested that topics be used instead.

发送到指定的多个注册令牌时，必须使用 registration_ids 而不是 to .来自文档(重点是我的):

When sending to specified multiple registration tokens, you must use registration_ids instead of to. From the docs (emphasis mine):

该值应该是要向其发送多播消息的注册令牌数组.该数组必须包含至少1个，最多1000个注册令牌.要将消息发送到单个设备，请使用to参数.

The value should be an array of registration tokens to which to send the multicast message. The array must contain at least 1 and at most 1000 registration tokens. To send a message to a single device, use the to parameter.

仅允许使用HTTP JSON格式发送多播消息.

Multicast messages are only allowed using the HTTP JSON format.

var message = {
    registration_ids: regTokens,

   data: {
        ar_message: messageToSend
   }
  };

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