React fetch data in server before render

Question

I\'m new to reactjs, I want to fetch data in server, so that it will send page with data to client.

It is OK when the function getDefaultProps return dummy data like

Answer 1

As a supplement of the answer of Michael Parker, you can make getData accept a callback function to active the setState update the data:

componentWillMount : function () {
    var data = this.getData(()=>this.setState({data : data}));
},