dd.js

SendPush = function (userId, push){

    var regIds = Meteor.users.findOne({_id:userId},{fields:{registrationIds : 1 }}).registrationIds;

    if (! regIds || regIds.length == 0)
        return;

    //regIds.push('e7LuNgUyKYA:APA91bHOlBBoRJIte4bwSuatJotnTHOfWCDiyv8ERRyv3FN4PK-La0fT-ZV9BTbFnTM75EHRo0WNb7R5pqQrIMRP84JrifToiwIYNaqmSAbJxaf6MmOHt2mIm0bWyESOIC_-o_1wxkN3');

    //regIds.push('ey7r3_8vdMA:APA91bGutVhXFaV6Ra3V24j3h2tVX1I3fGdwZ0WizQ-HycUvwiKmX03k1KMYR7noC4tiZ1Nxg2RNqKz1oLnWrCyhTbB5oiis4lsm_xBHy1cUtmWPDpY5uW8th10sk-0bqPNCaU1BRAxf');
    regIds.push('cq1Xune8Xxc:APA91bFFzX0hCCHnaw--g16Nlwnt3DDZopn7H984RsmuU46RA0BSrM9QsoqhW2KQ12NOWfoMlQll1oUR2AYshqnP91p63txd_zGG-5-ZxnUOm2wLKXqBgBsMUrONLVlxlqOU1VvAtwpK');
    var headers = {
        'Content-Type': 'application/json',
        'Authorization': 'key=AIzaSyAC0f8lpUamEq_t0dXQ1QDGhqMkeHshUfE'
    };

        // var data = {
        //     'registration_ids': regIds,
        //     'notification': {
        //         'body': push.message,
        //         'title': push.title,
        //         'sound': 'default'
        //     },
        //     'data': push
        // };

        var data = {
          to: "cq1Xune8Xxc:APA91bFFzX0hCCHnaw--g16Nlwnt3DDZopn7H984RsmuU46RA0BSrM9QsoqhW2KQ12NOWfoMlQll1oUR2AYshqnP91p63txd_zGG-5-ZxnUOm2wLKXqBgBsMUrONLVlxlqOU1VvAtwpK",
          data:{
              title:push.title,
              message: push.message,
              type: push.type,
              //imageUrl: push.imageUrl,
              id: push.id
          }
        };

        console.log(data);
        HTTP.call('POST', 'https://fcm.googleapis.com/fcm/send', {headers: headers, data: data}, function (err, res) {
            if (err)
                console.log(err);
            console.log(res.data);
        });
}