Seamlessly bringing Parse data into your React applications.
Parse + React is an interface layer on top of the Parse JS SDK that provides simple access to the Parse API from React. It lets React components subscribe to Parse queries, and allows data mutations to be dispatched in a Flux-style manner. In the background, these subscriptions are managed in a way that lets these components automatically update as objects are created and modified, allowing user interfaces to be snappy and responsive.
To add Parse data to a component, it simply needs to subscribe to a standard
Parse Query. This is done through an implementation of the newly-proposed
observe() API for React. The
ParseReact Mixin allows a version of this new lifecycle method to be used today
with Parse Queries.
var CommentBlock = React.createClass({
mixins: [ParseReact.Mixin], // Enable query subscriptions
observe: function() {
// Subscribe to all Comment objects, ordered by creation date
// The results will be available at this.data.comments
return {
comments: (new Parse.Query('Comment')).ascending('createdAt')
};
},
render: function() {
// Render the text of each comment as a list item
return (
<ul>
{this.data.comments.map(function(c) {
return <li>{c.text}</li>;
})}
</ul>
);
}
});Whenever this component mounts, it will issue the query and the results will be
attached to this.data.comments. Each time the query is re-issued, or objects
are modified locally that match the query, it will update itself to reflect
these changes.
Mutations are dispatched in the manner of Flux Actions, allowing updates to be synchronized between many different components without requiring views to talk to each other. All of the standard Parse data mutations are supported, and you can read more about them in the Data Mutation guide.
// Create a new Comment object with some initial data
ParseReact.Mutation.Create('Comment', {
text: 'Parse <3 React'
}).dispatch();You can download Parse + React from within this Github repo. It's also available on our CDN (minified), and on npm.
If you're not familiar with React, we recommend you first walk through their tutorials before adding Parse data to your React applications.
Parse + React adds new functionality when React and the Parse JS SDK are used together, and it requires that those libraries be in place before it is initialized. The easiest way to do this is to load them on your page before loading the Parse + React library:
<html>
<head>
<script src="http://fb.me/react-0.13.1.min.js"></script>
<script src="https://www.parsecdn.com/js/parse-latest.js"></script>
<!-- Now include parse-react.js -->
<script src="https://www.parsecdn.com/js/parse-react.js"></script>
...If you're using a tool like Webpack or Browserify to enable Common JS require
statements, there are two approaches you can take. The first is to simply
require Parse and React in every module that requires Parse + React:
var React = require('react');
var Parse = require('parse').Parse;
var ParseReact = require('parse-react.js');
// ...However if this gets repetitive, you can add them to the global scope once in your app's entry point, and never require them again:
var React = window.React = require('react');
var Parse = window.Parse = require('parse').Parse;
// In every module, you can load Parse + React without worrying about dependencies
var ParseReact = require('parse-react');Now that you've included all of the necessary libraries, you're ready to start subscribing to Parse data and mutating it.
See the CONTRIBUTING file for information on how to help out.
Copyright (c) 2015, Parse, LLC. All rights reserved.
You are hereby granted a non-exclusive, worldwide, royalty-free license to use, copy, modify, and distribute this software in source code or binary form for use in connection with the web services and APIs provided by Parse.
As with any software that integrates with the Parse platform, your use of this software is subject to the Parse Terms of Service [https://www.parse.com/about/terms]. This copyright notice shall be included in all copies or substantial portions of the software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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