Netlify does not support Node.js apps directly. If you want to get your Node.js app deployed on Netlify, you need to deploy the App as a lambda function which I have explained in detail in this article.
Alternatively, you can clone my this repository where I have already done the configuration changes for Netlify.
You can check out my commits HERE to understand what changes I have done specific to Netlify
If you don't want to do such configuration, you can use Heroku to deploy the App because Heroku supports both React and Nodejs App directly.
Netlify does not support Node.js apps directly. If you want to get your Node.js app deployed on Netlify, you need to deploy the App as a lambda function which I have explained in detail in this article.
Alternatively, you can clone my this repository where I have already done the configuration changes for Netlify.
You can check out my commits HERE to understand what changes I have done specific to Netlify
If you don't want to do such configuration, you can use Heroku to deploy the App because Heroku supports both React and Nodejs App directly.
I have just published an article showing how to deploy this application to Heroku. Check it out HERE