How can I handle a ajax request response in the Flux Architecture? - ajax

Question

Looking at the Flux Documentation I can't figure out how the code to a ajax update, and a ajax fetch would fit into the dispatcher, store, component architecture.
Can anyone provide a simple, dummy example, of how an entity of data would be fetched from the server AFTER page load, and how this entity would be pushed to the server at a later date. How would the "complete" or "error" status of request be translated and treated by the views/components? How would a store wait for the ajax request to wait? :-?

Answer 1

Is this what you are looking for?
http://facebook.github.io/react/tips/initial-ajax.html
you can also implement a fetch in the store in order to manage the information.
Here is an example (it is a concept, not actually working code):
'use strict';
var React = require('react');
var Constants = require('constants');
var merge = require('react/lib/merge'); //This must be replaced for assign
var EventEmitter = require('events').EventEmitter;
var Dispatcher = require('dispatcher');
var CHANGE_EVENT = "change";
var data = {};
var message = "";
function _fetch () {
message = "Fetching data";
$.ajax({
type: 'GET',
url: 'Url',
contentType: 'application/json',
success: function(data){
message = "";
MyStore.emitChange();
},
error: function(error){
message = error;
MyStore.emitChange();
}
});
};
function _post (myData) {
//Make post
$.ajax({
type: 'POST',
url: 'Url',
// post payload:
data: JSON.stringify(myData),
contentType: 'application/json',
success: function(data){
message = "";
MyStore.emitChange();
},
error: function(error){
message = "update failed";
MyStore.emitChange();
}
});
};
var MyStore = merge(EventEmitter.prototype, {
emitChange: function () {
this.emit(CHANGE_EVENT);
},
addChangeListener: function (callback) {
this.on(CHANGE_EVENT, callback);
},
removeChangeListener: function (callback) {
this.removeListener(CHANGE_EVENT, callback);
},
getData: function (){
if(!data){
_fetch();
}
return data;
},
getMessage: function (){
return message;
},
dispatcherIndex: Dispatcher.register( function(payload) {
var action = payload.action; // this is our action from handleViewAction
switch(action.actionType){
case Constants.UPDATE:
message = "updating...";
_post(payload.action.data);
break;
}
MyStore.emitChange();
return true;
})
});
module.exports = MyStore;
Then you need to subscribe your component to the store change events
var React = require('react');
var MyStore = require('my-store');
function getComments (){
return {
message: null,
data: MyStore.getData()
}
};
var AlbumComments = module.exports = React.createClass({
getInitialState: function() {
return getData();
},
componentWillMount: function(){
MyStore.addChangeListener(this._onChange);
},
componentWillUnmount: function(){
MyStore.removeChangeListener(this._onChange);
},
_onChange: function(){
var msg = MyStore.getMessage();
if (!message){
this.setState(getData());
} else {
this.setState({
message: msg,
data: null
});
}
},
render: function() {
console.log('render');
return (
<div>
{ this.state.message }
{this.state.data.map(function(item){
return <div>{ item }</div>
})}
</div>
);
}
});
I hope it is clear enough.