def test_replaceLedger(blockchain_three_blocks):
blockchain = Blockchain()
blockchain.replaceLedger(blockchain_three_blocks.ledger)
assert blockchain.ledger == blockchain_three_blocks.ledger
def test_replaceLedgerBadLedger(blockchain_three_blocks):
blockchain = Blockchain()
blockchain_three_blocks.ledger[1].hash = 'bad_hash'
with pytest.raises(Exception, match='cannot replace. The incoming chain is invalid:'):
blockchain.replaceLedger(blockchain_three_blocks.ledger)
blockMined = blockchain.ledger[-1]
pubsub.broadcastBlock(blockMined)
transactionPool.clearTransactionPool(blockchain.ledger)
return jsonify(blockMined.toJson())
#return render_template("blockchain_mine.html", blockmined=blockMined)
@app.route('/wallet/transact', methods=['POST'])
def route_Wallet_Transact():
transactionData = request.get_json()
transaction = transactionPool.existingTransaction(wallet.address)
if not transaction:
transaction = Transaction(wallet, transactionData['pollID'],
transactionData['option'])
pubsub.broadcastTransaction(transaction)
return jsonify(transaction.toJson())
#return render_template("wallet_transact", wallet_transact=transaction)
ROOT_PORT = 5000
PORT = ROOT_PORT
if os.environ.get('PEER') == 'True':
PORT = random.randint(5001, 6000)
result = requests.get(f'http://localhost:{ROOT_PORT}/blockchain')
ledgerFromOtherNodes = (Blockchain.fromJson(result.json())).ledger
try:
blockchain.replaceLedger(ledgerFromOtherNodes)
except Exception as e:
print(f'exception in synchronising ledger {e}.')
print(PORT)
app.run(port=PORT)