调用服务器从客户端执行方法

时间:2013-05-23 04:25:44

标签: mongodb meteor twitter-streaming-api

我正在使用meteorjs在Twitter流媒体应用上工作。但是,当用户输入新的跟踪关键字时,我有一个问题是破坏流并替换为新流。当用户输入新的跟踪关键字时,如何在服务器端调用twitter流来销毁和流式传输新的音轨?

//在client.js中

Template.executefb.events({
'keyup input#searchFeedback': 
  function(e) { 
    if(e.which == '13')
    {
      var tag = $('#searchFeedback').val();
      var exist = searchTag(tag, 'feedback');
      if(typeof exist == 'undefined')
      {
        Meteor.call('addNewTag',tag, 'feedback');

       //I want to call server to call Meteor.call('getLatestTag', 'feedback');
       // and Meteor.call('streamTwit', Fiber, twit, feedback); in server again


      }
     Meteor.call('clearSearchbar');
    }
  }
});

//在server.js中

var require;
var ntwitter;
var Fiber;


require = Npm.require;
ntwitter = require('ntwitter');
Fiber = require('fibers');


var twit = new ntwitter({
consumer_key: 'some key',
consumer_secret: 'some key',
access_token_key: 'some key',
access_token_secret: 'some key'
});

//get latest tag entered by the user from mongodb
var feedback = Meteor.call('getLatestTag', 'feedback');

//this method call starts twitter streaming
Meteor.call('streamTwit', Fiber, twit, feedback);

提前致谢:)

1 个答案:

答案 0 :(得分:1)

您可以将其添加到server.js

Meteor.methods({
    changeStream: function() {
        //get latest tag entered by the user from mongodb
        var feedback = Meteor.call('getLatestTag', 'feedback');

        //this method call starts twitter streaming
        Meteor.call('streamTwit', Fiber, twit, feedback);
    }
});

在您的客户中:

if(typeof exist === 'undefined') {
    Meteor.call('addNewTag', tag, 'feedback', function() {
        Meteor.call("changeStream");
    });
}

注意:您可以简单地将tag传递给changeStream方法,而不是等待addNewTag方法的回调,然后放弃服务器-side getLatestTag因为你已经拥有它。