def balanceTotalSupply():
request = app.current_request
data = request.json_body
token = Database.find_one("Token", {"address": data["token"]})
if not token:
raise NotFoundError('token not found with address {}'.format(
data["token"]))
print(data)
Database.update("Token", {"id": token["id"]},
{"totalSupply": data["newTotalSupply"]})
user = Database.find_one("User", {'address': data["owner"]})
if not user:
raise NotFoundError('user not found with address {}'.format(
data["owner"]))
userBalance = Database.find_one("TokenBalance", {
'userId': user['id'],
"tokenId": token["id"]
},
insert=True)
if 'balance' not in userBalance: userBalance['balance'] = '0'
if not userBalance['balance']: userBalance['balance'] = '0'
newBalance = int(float(userBalance['balance'])) + int(
float(data["newTotalSupply"])) - int(float(data["oldTotalSupply"]))
userBalance = Database.update("TokenBalance",
{"id": userBalance["id"]},
{"balance": newBalance},
return_updated=True)[0]
return toObject(userBalance)
def test_update(self):
with patch.dict('os.environ', env):
Database.insert("User", {'name': 'tom'})
Database.update("User", [[('name','=','tom')]], {'name': 'tom2'})
user = Database.find_one("User", {'name': 'tom'})
self.assertEqual(user, None)
user = Database.find_one("User", {'name': 'tom2'})
self.assertEqual(user['name'], 'tom2')
def truelayer():
request = app.current_request
if 'id' not in request.query_params: raise NotFoundError('id')
user_id = request.query_params['id']
user = Database.find_one('User', {'id': user_id})
nonce = ''.join(
random.choice("qwertyuioplkjhgfdsazxvbnm") for _ in range(10))
Database.update('User', {"id": int(user["id"])}, {"nonce": nonce})
url = TL.get_auth_url(nonce)
return Response(body=None, status_code=302, headers={"Location": url})
def balanceTransfer():
request = app.current_request
data = request.json_body
print("\n\nbalanceTransfer\n\n")
print(data)
print("\n\nbalanceTransfer\n\n")
token = Database.find_one("Token", {"address": data["token"]})
fromUser = Database.find_one("User", {'address': data["from"]})
if not fromUser:
raise NotFoundError('user not found with address {}'.format(
data["from"]))
toUser = Database.find_one("User", {'address': data["to"]})
if not toUser:
raise NotFoundError('user not found with address {}'.format(
data["to"]))
value = data['value']
fromBalance = Database.find_one("TokenBalance", {
'userId': fromUser['id'],
"tokenId": token["id"]
},
for_update=True)
# If there is no from balance this transfer cannot be valid
if not fromBalance:
raise NotFoundError('token balance not found for user {}'.format(
fromUser['id']))
# Check does the user have enough balance
print("fromBalanceYo: ", fromBalance)
if ('balance' not in fromBalance or not fromBalance['balance']
or int(fromBalance['balance']) < int(value)):
raise NotFoundError('token balance not enough for user {}'.format(
fromUser['id']))
newFromBalance = int(float(fromBalance['balance'])) - int(float(value))
fromBalance = Database.update("TokenBalance",
{"id": fromBalance["id"]},
{"balance": newFromBalance},
return_updated=True)[0]
toBalance = Database.find_one("TokenBalance", {
'userId': toUser['id'],
"tokenId": token["id"]
},
insert=True,
for_update=True)
if 'balance' not in toBalance: toBalance['balance'] = '0'
if not toBalance['balance']: toBalance['balance'] = '0'
newToBalance = int(float(toBalance['balance'])) + int(float(value))
toBalance = Database.update("TokenBalance", {"id": toBalance["id"]},
{"balance": newToBalance},
return_updated=True)[0]
return {"message": "Funds transferred"}
def trades_claim(tradeId):
trade = Database.find_one("Trade", {"id": int(tradeId)})
decrypted = Cryptor.decryptInput(trade['nominalAmount'], trade['sk'])
price = Cryptor.decryptInput(trade['price'], trade['sk'])
# Ill need to include the currency here
amountInvested = int(decrypted.split(':')[1])
if trade['state'] != 5:
return {'message': 'Trade is in state {}, requires state 5'.format(trade['state'])}
# get trade dates nav
nav = Database.find_one("NAVTimestamp", {"tokenId": trade["tokenId"]}, order_by='-createdAt')
# get todays nav and totalSupply
token = Database.find_one('Token', {'id': trade['tokenId']})
totalTokens = int(amountInvested / nav['price'])
investorTokens = None
if amountInvested > 0:
effectiveNAV = (1.0+float(price)/100)*nav['price']
investorTokens = amountInvested / effectiveNAV
else:
investorTokenBalance = Database.find_one("TokenBalance", {"tokenId": token["id"], "userId": investor["id"]})
if not investorTokenBalance['balance']: investorTokenBalance['balance'] = '0'
effectiveNAV = (1-float(price)/100)*nav['price']
investorTokens = min(int(amountInvested / effectiveNAV), -1 * int(investorTokenBalance['balance']))
tokenContract = Web3Helper.getContract("ETT.json", token['address'])
totalSupply = Web3Helper.call(tokenContract,'dateTotalSupply',arrow.get(trade['executionDate']).format('YYYY-MM-DD'),)
# find number of tokens user allocated
numberTokens = 0 if not nav['price'] else math.floor(amountInvested * totalSupply / nav['price'])
investorTokens = int(investorTokens * math.pow(10, token['decimals']))
# now ask the contract to distribute the tokens (maybe should be the investor that does this)
investor = Database.find_one("User", {"id": trade["investorId"]})
tradeKernelContract = Web3Helper.getContract("TradeKernel.json")
tx = Web3Helper.transact(
tradeKernelContract,
'distributeTokens',
trade['hash'],
[
Web3Helper.toChecksumAddress(token['address']),
Web3Helper.toChecksumAddress(investor['address']),
],
[
investorTokens
]
)
print(tx.hex())
Database.update("Trade", {"id": trade["id"]}, {"state": 6, "numberTokens": numberTokens})
return {"message": "Tokens distributed"}
def trades_show(tradeId):
request = app.current_request
data = request.json_body
trade = Database.find_one("Trade", {"id": int(tradeId)})
if not trade: raise NotFoundError("trade not found with id {}".format(tradeId))
tradeBroker = Database.find_one("TradeBroker", {
"tradeId": trade["id"],
"brokerId": request.user["id"]
})
if not tradeBroker: raise NotFoundError("tradeBroker not found with trade id {}".format(tradeId))
Database.update("TradeBroker", {"id": tradeBroker["id"]}, {"price": data["price"]})
# Socket, should be pushing to a message queue of some kind
r = passWithoutError(requests.post)(socket_uri + "trade-update", data=toObject(trade))
return toObject(trade)
def trades_confirmed():
request = app.current_request
data = request.json_body
tradeHash = data['tradeHash']
broker = Database.find_one("User", {"address": data["broker"]})
trade = Database.find_one("Trade", {"hash": tradeHash})
if not trade: raise NotFoundError("trade not found with hash {}".format(tradeHash))
Database.update("Trade", {"id": trade["id"]}, {"state": 1})
Database.update("TradeBroker", {"tradeId": trade["id"], "brokerId": broker["id"]}, {"state": 1})
trade["state"] = 1
# Socket, should be pushing to a message queue of some kind
r = passWithoutError(requests.post)(socket_uri + "trade-update", data=toObject(trade))
return toObject(trade)
def user_put(userId):
request = app.current_request
data = request.json_body
if 'address' in data:
# Find if another user
# requestingUser = request.user
data['address'] = Web3Helper.toChecksumAddress(data['address'])
# user = Database.find_one("User", {'address': data['address']})
# if user and user['id'] != requestingUser['id']:
# raise ForbiddenError('user already exists with address {}'.format(data['address']))
user = Database.find_one("User", {'id': int(userId)})
if not user:
raise NotFoundError('user not found with id {}'.format(userId))
user = Database.update('User', {'id': user['id']},
data,
return_updated=True)[0]
if 'address' in data:
# Set user athorized as investor
tx = Web3Helper.transact(permissions_contract, 'setAuthorized',
data['address'], 1)
return toObject(
user, ['id', 'name', 'address', 'role', 'ik', 'spk', 'signature'])
def test_update_multiple_with_or(self):
with patch.dict('os.environ', env):
Database.insert("User", {'name': 'tom'})
Database.insert("User", {'name': 'tom2'})
Database.update("User", [[('name','=','tom')],[('name','=','tom2')]], {'name': 'tom3'})
user = Database.find_one("User", {'name': 'tom'})
self.assertEqual(user, None)
user = Database.find_one("User", {'name': 'tom2'})
self.assertEqual(user, None)
users = Database.find("User", {'name': 'tom3'})
self.assertEqual(len(users), 2)
self.assertEqual(users[0]['name'], 'tom3')
self.assertEqual(users[1]['name'], 'tom3')
def feeTaken():
request = app.current_request
data = request.json_body
print(data)
token = Database.find_one("Token", {"address": data["token"]})
ownerUser = Database.find_one("User", {'address': data["owner"]})
if not ownerUser:
raise NotFoundError('user not found with address {}'.format(
data["owner"]))
value = data['value']
ownerBalance = Database.find_one("TokenBalance", {
'userId': ownerUser['id'],
"tokenId": token["id"]
},
insert=True)
if 'balance' not in ownerBalance: ownerBalance['balance'] = '0'
if not ownerBalance['balance']: ownerBalance['balance'] = '0'
newOwnerBalance = int(float(ownerBalance['balance'])) + int(
float(value))
ownerBalance = Database.update("TokenBalance",
{"id": ownerBalance["id"]},
{"balance": newOwnerBalance},
return_updated=True)[0]
return {"message": "Fee taken"}
def trades_delete(tradeId):
request = app.current_request
data = request.json_body
trade = Database.find_one("Trade", {"id": int(tradeId)})
if not trade: raise NotFoundError("trade not found with id {}".format(tradeId))
trade = Database.update("Trade", {"id": int(tradeId)}, {'state': 3}, return_updated=True)[0]
# Socket, should be pushing to a message queue of some kind
r = passWithoutError(requests.post)(socket_uri + "trade-update", data=toObject(trade))
return toObject(trade)
def orders_complete():
request = app.current_request
data = request.json_body
order = Database.find_one("Order", {"hash": data["orderHash"]})
# set order state to complete
Database.update("Order", {"id": order["id"]}, {"state": 1})
# set state to all trade as verified
orderTrades = Database.find("OrderTrade", {"orderId": order["id"]})
tradeIds = [o['tradeId'] for o in orderTrades]
tradeQuery = [[('id','=',tradeId)] for tradeId in tradeIds]
Database.update("Trade", tradeQuery, {'state': 2})
# Here I need to check if all orders are complete for the day
executionDate = order["executionDate"]
incompleteOrders = Database.find("Order", {"state": 0, "executionDate": executionDate, "tokenId": order["tokenId"]})
if len(incompleteOrders):
# There are still orders waiting to complete
print("There are still orders waiting to complete")
return {"message": "Order completed"}
# Here I need to calculate the AUM
# find the token
token = Database.find_one("Token", {"id": order["tokenId"]})
print(token['address'])
tokenContract = Web3Helper.getContract("ETT.json", token['address'])
tokenHoldingsObject = Database.find_one("TokenHoldings", {"tokenId": token["id"]})
tokenHoldings = Database.find("TokenHolding", {"tokenHoldingsId": tokenHoldingsObject["id"]})
newAUM = 0
for tokenHolding in tokenHoldings:
securityTimestamp = Database.find_one('SecurityTimestamp', {'securityId': tokenHolding["securityId"]}, order_by='-createdAt')
newAUM += securityTimestamp['price'] * tokenHolding['securityAmount']
executionDateString = arrow.get(executionDate).format('YYYY-MM-DD')
tx = Web3Helper.transact(tokenContract, 'endOfDay', executionDateString)
# tx = b''
print({"message": "AUM updated", "AUM": newAUM, "hash": tx.hex()})
return {"message": "AUM updated", "AUM": newAUM, "hash": tx.hex()}
def tokens_nav_update():
print('\n\n\n\n')
request = app.current_request
data = request.json_body
token = Database.find_one("Token", {"address": data["token"]})
time = data["time"]
executionDate = arrow.get(time).format('YYYY-MM-DD')
nav = Database.insert("NAVTimestamp", {
"tokenId": token['id'],
"price": data['value'],
"executionDate": executionDate
},
return_inserted=True)
# First need to collect the trades
print(token['id'])
trades = Database.find("Trade", {"state": 1, "tokenId": token["id"]})
print(trades)
# Need to go through each trade and get the NAV+price
supplyUpdate = 0
for trade in trades:
decryptedNominalAmount = Cryptor.decryptInput(
trade['nominalAmount'], trade['sk'])
amountInvested = int(decryptedNominalAmount.split(':')[1])
price = Cryptor.decryptInput(trade['price'], trade['sk'])
price = float(price)
print("amountInvested: ", amountInvested)
print("price: ", price)
effectiveNAV = (1.0 + float(price) / 100) * nav['price']
print("supplyUpdate", int(amountInvested * 1.0 / effectiveNAV))
# supplyUpdate += int(amountInvested * math.pow(10, token['decimals']) / nav['price'])
supplyUpdate += int(amountInvested *
math.pow(10, token['decimals']) / effectiveNAV)
tokenContract = Web3Helper.getContract("ETT.json", token['address'])
# Update trades to be ready for claiming
tradeQuery = [[('id', '=', t['id'])] for t in trades]
trades = Database.update("Trade",
tradeQuery, {'state': 4},
return_updated=True)
for trade in trades:
# Take funds
takeFunds(trade)
tx = Web3Helper.transact(
tokenContract,
'updateTotalSupply',
supplyUpdate,
'', # we are ignoring this for now
executionDate)
# tx = b''
print(tx.hex())
return toObject(nav)
def tokens_contract_update():
request = app.current_request
data = request.json_body
Database.update(
"Token", {"symbol": data["symbol"]}, {
"address": Web3Helper.toChecksumAddress(data["tokenAddress"]),
})
token = Database.find_one("Token", {"symbol": data["symbol"]})
owner = Database.find_one(
"User", {"address": Web3Helper.toChecksumAddress(data["owner"])})
tokenBalance = Database.find_one("TokenBalance", {
"tokenId": token['id'],
"userId": owner["id"]
})
if not tokenBalance:
tokenBalance = Database.find_one("TokenBalance", {
"tokenId": token['id'],
"userId": owner["id"],
"balance": data['initialAmount']
},
insert=True)
return toObject(token)
def orders_post():
request = app.current_request
data = request.json_body
trades = data['trades']
order = {
"brokerId": request.user["id"],
"signature": data["signature"],
"tokenId": data["token"],
"salt": data["salt"],
"amount": data["amount"],
"executionDate": data["executionDate"],
"hash": data["hash"],
"state": 0
}
order = Database.insert("Order", order)
for orderHolding in data['orderHoldings']:
security = Database.find_one("Security", {"id": orderHolding["securityId"]}, insert=True)
amount = 1 if orderHolding["direction"] == "Buy" else -1
amount *= int(orderHolding["amount"])
orderHolding = {
"securityId": security["id"],
"orderId": order["id"],
"amount": amount,
"cost": int(orderHolding["cost"]) if "cost" in orderHolding else 0
}
orderHolding = Database.insert("OrderHolding", orderHolding, return_inserted=True)
for trade in trades:
Database.update("Trade", {"id": trade["id"]},{"sk": trade["sk"]})
orderTrade = {
"orderId": order["id"],
"tradeId": trade["id"]
}
orderTrade = Database.insert("OrderTrade", orderTrade, return_inserted=True)
return toObject(order)
def truelayer_callback():
request = app.current_request
code = request.query_params['code']
nonce = request.query_params['state']
user = Database.find_one("User", {'nonce': nonce})
if not user: raise NotFoundError('user not found')
user = Database.update('User', {"id": user["id"]},
TL.get_access_token(user, code),
return_updated=True)[0]
accounts = TL.get_accounts(user)
if not len(accounts): raise NotFoundError('No accounts found for user')
# update the permissions contract
# Web3Helper.transact(permissions_contract,'setAuthorized',Web3Helper.toChecksumAddress(user['address']),1)
return Response(
body=None,
status_code=302,
headers={"Location": "{}investor/profile".format(front_end_url)})
def createToken(data):
owner = None
ownerId = data["ownerId"] if "ownerId" in data else None
if not ownerId:
owner = Database.find_one("User", {"address": Web3Helper.account()})
ownerId = owner["id"]
else:
owner = Database.find_one("User", {"id": ownerId})
if not owner: raise NotFoundError('No user found')
token_data = {
"fundId": data["fundId"],
"decimals": data["decimals"],
"symbol": data["symbol"],
"cutoffTime": int(data["cutoffTime"]),
"fee": int(data["fee"]),
"ownerId": ownerId,
"name": data["name"],
"totalSupply": data["initialAmount"],
"incomeCategory": data["incomeCategory"],
"minimumOrder": data["minimumOrder"],
"currency": data["minimumOrder"],
}
if "fundId" in data: token_data["fundId"] = data["fundId"]
# Check if a token with the same symbol already exists
symbolToken = Database.find_one("Token", {"symbol": token_data["symbol"]})
if (symbolToken): raise ForbiddenError("Already a token with this symbol")
token = Database.find_one("Token", token_data, insert=True)
tokenHoldings = Database.find_one(
"TokenHoldings", {
"tokenId": token['id'],
"executionDate": str(datetime.today().date())
},
insert=True)
if 'nav' in data:
# Create a NAV timestamp
executionDate = arrow.now().format('YYYY-MM-DD')
Database.insert(
"NAVTimestamp", {
"tokenId": token['id'],
"price": data['nav'],
"executionDate": executionDate
})
holdings = []
if 'holdings' in data:
for holding in data['holdings']:
# get the correct security
security = Database.find_one("Security",
{"symbol": holding["symbol"]})
if (security):
Database.update("Security", {"id": security["id"]}, {
"name": holding["name"],
"currency": holding["currency"],
"country": holding["country"],
"sector": holding["sector"],
"class": holding["class"]
})
else:
security = Database.find_one("Security", {
"symbol": holding["symbol"],
"name": holding["name"],
"currency": holding["currency"],
"country": holding["country"],
"sector": holding["sector"],
"class": holding["class"]
},
insert=True)
price = holding['price'] if 'price' in holding else '0'
securityTimestamp = Database.find_one('SecurityTimestamp', {
'securityId': security["id"],
'price': price
},
order_by='-createdAt',
insert=True)
tokenHolding = Database.find_one(
"TokenHolding", {
"securityId": security["id"],
"securityAmount": holding["amount"],
"tokenHoldingsId": tokenHoldings["id"]
},
insert=True)
holdings.append(tokenHolding)
holdingsString = createHoldingsString(holdings)
try:
tx = Web3Helper.transact(
token_factory_contract,
'createETT',
token_data["name"],
token_data["decimals"],
token_data["symbol"],
int(data["initialAmount"]),
holdingsString,
token_data["cutoffTime"],
token_data["fee"],
Web3Helper.toChecksumAddress(owner['address']),
)
print(tx.hex())
except Exception as e:
print(e)
pass
def refresh_user_token(user):
return Database.update('User', {"id": user["id"]},
TL.get_refresh_token(user),
return_updated=True)[0]
def trades_funds_transfered():
request = app.current_request
data = request.json_body
tradeHash = data['tradeHash']
trade = Database.update("Trade", {"hash": tradeHash}, {'state': 5})
return toObject(trade)
