I was following this guide today https://medium.com/mercuryprotocol/how-to-create-your-own-private-ethereum-blockchain-dad6af82fc9f.
Right now I am at point where I have two geth nodes (gethn1 and gethn2) running locally on my machine. They are aware of each other and I was able to send a 100eth from an address on gethn1 -> address on gethn2.
What I want to do now is create a small web app. Given an address that exists on this private blockchain, this app would return a balance in that address.
I understand I could achieved this using the web3 library, but I am unsure of how to do this with a private blockchain.