How to implement image loading from the front (reactjs + redux) on wysiwig to the backend (Nodejs)?

Question

WYSIWYG

Hello!
There was such a question, I am making a news module, here it is necessary to implement the loading of one image as the main image, and several images in the text (wysiwig), how to implement this?
expressjs as restful, on the front there will be reactjs + redux.
Or is it generally necessary to store pictures on the front, and send only the name and path of the picture to the backend?