Bitcoin bank

Requirements

This project works with 2 bitcoin wallets: a cold and hotwallet, ideally the cold wallet is supposed to be a coldstorage but for the purpose of this project we will use 2 Bitcoin core wallets. When you run the project npm run dev it checks for the number of wallets on your node if none it creates 2 wallets named coldwallet, and hotwallet, if one wallet is available it creates one wallet named hotwallet. You can set the wallet names in the .env HOTWALLETNAME= COLDWALLETNAME= file if you have wallets already on your node and they are not named coldwallet and hotwallet.
Every 1 hour a check is done to make sure the hotwallet has 20% of the total funds while the rest of the 80% is in the cold wallet, if the hotwallet has more than 20% the amount of the percentage excess will be transferred to the cold wallet, also if the coldwallet has 80% the amount of the percentage that exceeds 80% will be transferred to the hotwallet
When u create a user using the api/v1/user/register endpoint it creates a new segwit user to the database table
Outbound transactions uses Bitcoin's JSON RPC sendtoaddress command to create and broadcast a transaction
Inbound Transactions are checked every 10 mins (Bitcoin's block time) after the confirmation meets the confirmation count specified in the .env it updates the user's balance and create a new address for them

Clone the project git clone https://github.com/elraphty/BitcoinBank.git
Run npm install
Install knex globally npm install knex -g
Start your Bitcoin Core node by running bitcoind in your termainal
Confirm if your node is running using bitcoin-cli -getinfo command
Create a .env file copy the variables in .env_sample file paste them in ur newly created .env file and update the values
Migrate Database schemas by running knex migrate:latest
Run npm run dev in the project folder

GET /api/v1 = Base route
POST /api/v1/user/register = Register a user, create a Segwit bech32 address for the user, and create a user default balance of 0 bitcoin
POST /api/v1/user/login = User login
GET /api/v1/user/address = Get user bitcoin segwit address for inbound transactions
GET /api/v1/user/balance = Get user bitcoin balance
POST /api/v1/wallet/createtransaction = Create an outbound transaction, and update the user's balance
GET /api/v1/wallet/transactions = Get user transactions