This project was bootstrapped with Create React App.
Most of the external tools that we need to integrate into a regular website just adds a script and injects their code/elements into a container, on any regular webpage it is meant to be just a copy and paste issue but on a React app it is connected to the App life cycle.
This small sample app shows how to add a remote script on the componentWillMount event which will allow the Add To Any script (for this example) to find the container div and inject its code.