Implement Facebook API login with reactjs

I'm working on using Facebook's Javascript SDK for authentication. I've been able to import the SDK properly and put a Like button on my page. But, the facebook login button has to be wrapped in the tag:

<fb:login-button/>

I currently have all of the code from the Facebook Login tutorial pasted into my index.html, the only html file in my project, which houses the React application. But, I need to put the last part, which has the actual login button, into my React component. When I tried to do that, I got the following error:

ReactifyError: /Users/ritmatter/reps/js/components/Signup.jsx: Parse Error: Line 82: Unexpected end of input while parsing file: /Users/ritmatter/reps/js/components/Signup.jsx
sdk.js:61 The "fb-root" div has not been created, auto-creating
ping?client_id=894010190618709&domain=localhost&origin=1&redirect_uri=http%3A%2F%2Fstatic.ak.facebo…:1 Given URL is not allowed by the Application configuration.: One or more of the given URLs is not allowed by the App's settings.  It must match the Website URL or Canvas URL, or the domain must be a subdomain of one of the App's domains.

How can I get the login button into react?