def get_last_block():
db = connect_to_db_blockchain()
last_block = db.find_one({"_id": ObjectId("5cc8ec4efb6fc00ed59ea5fd")}, {"block":{'$slice': -1}})
return last_block['block'][0]
# get_my_tx('markgagnon', 'root')
def clear_open_transactions():
db = connect_to_db_blockchain()
db.find_one_and_update({"_id": ObjectId("5cc8e412fb6fc00ed59ea3bb")},
{'$set': {
'open_transactions': []
}})
return
def add_node(self, node):
db = connect_to_db_blockchain()
db.find_one_and_update({"_id": ObjectId("5cc9c967e7179a596b194ca1")},
{'$addToSet': {
'nodes': node
}})
print('Node {} added'.format(node))
def remove_node(self, node, node_password):
db = connect_to_db_accounts()
account = db.find_one({"username": node})
if account != '':
db_password = account['password']
if password_compare(node_password, db_password):
db = connect_to_db_blockchain()
db.find_one_and_update(
{"_id": ObjectId("5cc9c967e7179a596b194ca1")},
{'$pull': {
'nodes': node
}})
message = {
"message": 'Node {} removed'.format(node),
"code": 201
}
else:
message = {"message": 'Wrong password', "code": 401}
return message
# Nodes().remove_node('markgagnon', 'root')
def __init__(self):
self.db = connect_to_db_blockchain()
self.blockchain = self.db.find_one(
{"_id": ObjectId("5cc8ec4efb6fc00ed59ea5fd")})
if len(self.blockchain['block']) == 0:
self.add_block(self.genesis_block())
def get_blockchain():
db = connect_to_db_blockchain()
blockchain = db.find_one({"_id": ObjectId("5cc8ec4efb6fc00ed59ea5fd")})
return blockchain
def get_nodes():
db = connect_to_db_blockchain()
nodes = db.find_one({"_id": ObjectId("5cc9c967e7179a596b194ca1")})
nodes = nodes['nodes']
return nodes
def get_transactions():
db = connect_to_db_blockchain()
open_transactions = db.find_one({"_id": ObjectId("5cc8e412fb6fc00ed59ea3bb")})
open_transactions = open_transactions['open_transactions']
return open_transactions