def mine():
# Run the proof-of-work algorithm to get the next proof
last_block = Blockchain.last_block
proof = Blockchain.proof_of_work(last_block)
# Receive a reward for finding the proof
# A sender "0" signifies that the node has mined a new coin
Blockchain.new_transaction(
sender="0",
recipient=node_identifier,
amount=1,
)
# Forge a new block by adding transaction to the chain
previous_hash = Blockchain.hash(last_block)
block = Blockchain.new_block(proof, previous_hash)
response = {
'message': "New Block forged",
'index': block['index'],
'transactions': block['transactions'],
'proof': block['proof'],
'previous_hash': block['previous_hash'],
}
return jsonify(response), 200
def new_transaction():
values = request.get_json()
# Are the required fields in the POSTed data?
required = ['sender', 'receiver', 'amount']
if not all(k in values for k in required):
return 'Missing Values', 400
# Create a new transaction
index = Blockchain.new_transaction(values['sender'], values['receiver'],
values['amount'])
response = {'message': f'Transaction will be added to Block {index}'}
return jsonify(response), 201