def publish_consensus():
peers = get_peers()
for peer in peers:
try:
response = requests.get(f'{peer.hostname}/consensus')
logger.debug(
f'publish consensus: {peer.hostname} => {response.status_code}'
)
except (requests.ConnectionError, requests.ConnectTimeout):
continue
async def search_products(request):
for peer in get_peers():
try:
async with aiohttp.ClientSession() as session:
async with session.get(f'{peer.hostname}/products') as response:
if response.status == 200:
new_product_list = {}
for product in await response.json():
new_product_list[product['product_id']] = product['description']
app.product_list[peer.identifier] = new_product_list
except (aiohttp.client_exceptions.ClientConnectorError, asyncio.TimeoutError):
continue
return json(app.product_list, status=200)
async def register_nodes(request):
values = request.get_json()
nodes = values.get('nodes')
if nodes is None:
return text(body="Error: Please supply a valid list of nodes", status=400)
for node in nodes:
add_peer(node['identifier'], node['hostname'])
peers = get_peers()
response = {
'message': 'New nodes have been added',
'total_nodes': [peer.to_dict() for peer in peers]
}
return json(response, status=201)
async def as_publish_consensus():
peers = get_peers()
for peer in peers:
try:
async with aiohttp.ClientSession() as session:
async with session.get(
f'{peer.hostname}/consensus') as response:
logger.debug(
f'publish consensus: {peer.hostname} => {response.status}'
)
except (aiohttp.client_exceptions.ClientConnectorError,
asyncio.TimeoutError):
continue
return True
def resolve_conflicts():
new_chain = None
max_length = Blockchain.get_length(Blockchain.get_blocks())
peers = get_peers()
for peer in peers:
try:
response = requests.get(f'{peer.hostname}/blocks')
if response.status_code == 200:
blocks = response.json()
length = Blockchain.get_length(blocks)
if length > max_length and valid_blocks(blocks):
max_length = length
new_chain = blocks
except (requests.ConnectionError, requests.ConnectTimeout):
continue
if new_chain:
Blockchain.replace_blocks(blocks)
return True
return False
async def as_resolve_conflicts():
new_chain = None
max_length = Blockchain.get_length(Blockchain.get_blocks())
peers = get_peers()
for peer in peers:
try:
async with aiohttp.ClientSession() as session:
async with session.get(
f'{peer.hostname}/blocks') as response:
if response.status == 200:
blocks = await response.json()
length = Blockchain.get_length(blocks)
if length > max_length and valid_blocks(blocks):
max_length = length
new_chain = blocks
except aiohttp.client_exceptions.ClientConnectorError:
continue
if new_chain:
Blockchain.replace_blocks(blocks)
return True
return False
def eliminate(dict_board):
for coor, value in dict_board.items():
if len(value) == 1:
for peer in (get_peers(coor)):
dict_board = assign_value(dict_board, peer, dict_board[peer].replace(value, ""))
return dict_board