My own Blockchain written in Python, capable of mining blocks and making transactions using the Python Flask framework. I started this project by following a tutorial about how to create your own blockchain. This is obviously not meant to be an amazing functional blockchain (in fact, it is a pretty crappy one), but this project gave me a better understanding of how blockchain networks function in detail, simply for research purposes.

Getting started

Downloading

git clone https://github.com/chimpansiets/own_blockchain.git

or download the ZIP from here

Running

$ python blockchain.py
* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

You can use cURL or Postman to interact with this API over a network.

Firstly, try mining a block by making a GET request to http://localhost:5000/mine:

After, create a new transaction by making a POST request to http://localhost:5000/transactions/new with a body containing our transaction structure:

If you are not using Postman, then you can make the same request using cURL:

$ curl -X POST -H "Content-Type: application/json" -d '{
 "sender": "d4ee26eee15148ee92c6cd394edd974e",
 "recipient": "someone-other-address",
 "amount": 5
}' "http://localhost:5000/transactions/new"

Resources / External Links

• https://hackernoon.com/learn-blockchains-by-building-one-117428612f46