Simple implementation of bitcoin.

Bitcoin: A Peer-to-Peer Electronic Cash System

You need python 3.6.2 and pip 19.0.1 versions

python3 --version
Python 3.6.2

pip --version
pip 19.0.1

First of all download you need to download project from git repository:

git clone https://xteams-gitlab.unit.ua/xteams/module-3-ariabyi.git ariabyi && cd ariabyi

Go to the created folder

cd ariabyi

Second of all you its desirable to have a virtual env to download all pip packages, to use them in future

sudo apt-get install python3-pip

sudo pip3 install virtualenv 

You can go faster way just write

alias virtualenv='$HOME/bin/virtualenv' ;
alias activ="source venv/bin/activate" ;
alias pipr="pip install -r requirements.txt";
alias prepenv="cvenv && activ && pipr"; prepenv

Or go a little bit longer way

virtualenv venv 

you can use any name instead of venv

virtualenv -p /usr/bin/python3 venv

source venv/bin/activate

deactivate

To install all packages you need to run this cash system use:

pip install -r requirements.txt

Okay, now you have all the conditions so you can use this node. First of all you need to activate env.

activ

Now you need to start server

(activ) python server.py

Open a new terminal window and go to the curent directory. Launch the command line interface to create you private key:

(activ) python wallet_cli.py

Use the new command to generate a new private key and public address. The public key are saved in Public_key.txt, private key will not be save anywhere, because it could declassify your data, just wrote private key in any save place

The send command in wallet cli with two parameters - sender address and amount (Example of bitcoin address - 17JsmEygbbEUEpvt4PFtYaTeSqfb9ki1F1). Then broadcast transaction to the network:

Open a new terminal window and go to the curent directory. Run miner-cli to start mining.

(activ) python miner_cli.py

At first we need to connect with our server:

add node ip

To mine one block use command mine:

/transaction/new - creates a new pending transaction

/transaction/pendings - return pendings transactions

/chain - return all blockchain in JSON format

/chain/length - return length of blockchain

/balance?addr=<address> - return the balance of given address

python -m tests/unit_test.py