def add_block(self, data):
if self.blocks.get('l'):
# there we should mark last block hash to create a new block.
# in the redis the l is the last block hash value key.
last_hash = self.blocks.get('l').decode()
b = Block()
new_block = b.new_block(data, last_hash)
pow = ProofOfWork(new_block, new_block["Nonce"])
if pow.validate():
# self.blocks.append(new_block)
self.blocks.set(new_block["Hash"], new_block)
self.blocks.set("l", new_block["Hash"])
else:
b = Block()
new_block = b.new_block(data)
pow = ProofOfWork(new_block, new_block["Nonce"])
if pow.validate():
# self.blocks.append(new_block)
self.blocks.set(new_block["Hash"], new_block)
self.blocks.set("l", new_block["Hash"])
def mine_block(self, transactions):
"""
根据链上的最后一个区块的hash值，生成一个新的block
:param transactions:
:return:
"""
lash_hash = self.blocks.get("l").decode()
height = self.get_height()
b = Block()
new_block = b.new_block(transactions, lash_hash, height + 1)
return new_block
def test_create_bc():
bc = BlockChain()
# 创世区块
coinbase = new_coinbase_tx("7AgP8z7XYyZ2sdnVJ6HCiE5X2reJDf")
genesis_block = new_genesis_block(coinbase)
bc.add_block(genesis_block)
b = Block()
# 自定义几个block
for i in range(5):
transactions = [b'Node1', b"Node2", b"Node3", b"Node4"]
last_hash = bc.blocks.get("l").decode()
height = bc.get_height()
new_block = b.new_block(transactions, last_hash, height + 1)
bc.add_block(new_block)
#!/usr/bin/env python
# -*- coding:utf-8 -*-
"""
This Document is Created by At 2018/7/9
"""
from consensus.proof_of_work import ProofOfWork
from core.blockchain.block import Block
if __name__ == '__main__':
b = Block()
genesis_block = b.new_block("Magic test", "")
pow = ProofOfWork(genesis_block)
pow.run()
def add_block():
b = Block()
b.new_block("Magic", "")
block = b.block
return json.dumps(block)