Building Node.js application using Einstein Vision on Heroku using React

React (https://facebook.github.io/react/) is one of the fastest maturing frontend JavaScript libraries for building component-based single page applications. This section will cover a hands-on tutorial to build a user interface using React to upload a file and get prediction using Einstein Vision on Heroku. We will use Express as a middleware to authenticate to the Prediction API and make API calls to the Einstein Vision Services. The final product can be viewed at https://powerful-bastion-25704.herokuapp.com/. It's a public Node.js app sitting on Heroku that accepts a flower image (at this point, it loads only roses, lilies, and lotuses of size less than 1 MB) and recognizes the image intelligently.
The app uses the model we built in the Explore Einstein Vision APIs section, which is trained to understand...