title: Start React App with Command Line Arguments
body: <p>I'd like to be able to launch my client-side React app from another programming language and pass it some command line arguments which would be passed to top level props or a context (or whatever). </p>
  
  <p>I basically want to be able to launch a command like:</p>
  
  <pre><code>npm start inputFile="/path/to/input/file.ext"
  </code></pre>
  
  <p>And have the inputFile path be passed to my React app.  Is this possible?  I'm using <code>create-react-app</code> to bootstrap my app.</p>