Setup

1. install go if you haven't already

brew install go

2. clone the repository and build the cli

git clone https://github.com/joaofnds/blockchain
cd blockchain
go build ./cmd/cli/cli.go

3. print the example blockchain

./cli print -file ./example.json

4. add a block

printf "Hello" | ./cli add -file example.json

5. print again to see the new block

./cli print -file ./example.json