socket.io setinterval way

Question

I want to make a web page for give the client the news of his friends every 1 second using socket.io + node.js.

My codes :

Client :

<

Answer 1

That's pretty much the standard way to do it. If you've not already looked the example apps page on socket.io, there's a beibertweet example that does just this using setInterval.

Also there's a slightly more advanced example on this blog.

Plus .. I found Ryan Dahls's intro on YouTube really useful for understanding the basics of node operation.

Hope that helps.

Answer 2

There is no need for the client to ask for news. You can force the server if you want to emit every 1 second - as long as there are clients connected, they will receive updates. If there are no clients connected, you will see in the logs that nothing happens.

On the server

setInterval(function(){
    socket.emit('news_by_server', 'Cow goes moo'); 
}, 1000);

On the client

socket.on('news_by_server', function(data){
  alert(data);
});