def get(self, configuration_file_name):
# Returns the highest estimate of ETH needed to get required service token amount
configuration_file = RaidenConfigurationFile.get_by_filename(
configuration_file_name)
account = configuration_file.account
w3 = make_web3_provider(
configuration_file.ethereum_client_rpc_endpoint, account)
required = RequiredAmounts.for_network(configuration_file.network.name)
kyber = Kyber(w3=w3)
uniswap = Uniswap(w3=w3)
highest_cost = 0
for exchange in (kyber, uniswap):
exchange_costs = exchange.calculate_transaction_costs(
required.service_token, account)
if not exchange_costs:
continue
total_cost = exchange_costs["total"].as_wei
highest_cost = max(highest_cost, total_cost)
estimated_cost = EthereumAmount(Wei(highest_cost))
self.render_json({
"dex_swap_RDN": {
"as_wei": estimated_cost.as_wei,
"formatted": estimated_cost.formatted,
}
})
class ExchangeSelectionTestCase(TokenSwapTestCase):
TOKEN_AMOUNTS = (50, 75, 100, 150, 200, 300, 500, 1000)
def setUp(self):
super().setUp()
self.kyber = Kyber(w3=self.w3)
self.uniswap = Uniswap(w3=self.w3)
@override_settings(network="mainnet")
def test_can_get_costs(self):
print("\t".join([st.rjust(36) for st in ("RDN to buy", "Kyber", "Uniswap")]))
for amount in self.TOKEN_AMOUNTS:
rdn_amount = TokenAmount(amount, self._get_RDN())
kyber_costs = self.kyber.calculate_transaction_costs(rdn_amount, self.account)
uniswap_costs = self.uniswap.calculate_transaction_costs(rdn_amount, self.account)
print(
"\t".join(
[
st.rjust(36)
for st in (
f"{rdn_amount.formatted}",
f"{kyber_costs['total'].formatted}",
f"{uniswap_costs['total'].formatted}",
)
]
)
)
def get(self, configuration_file_name, token_ticker):
configuration_file = RaidenConfigurationFile.get_by_filename(
configuration_file_name)
w3 = make_web3_provider(
configuration_file.ethereum_client_rpc_endpoint,
configuration_file.account)
kyber = Kyber(w3=w3)
uniswap = Uniswap(w3=w3)
token = Erc20Token.find_by_ticker(token_ticker,
configuration_file.network.name)
network = configuration_file.network
settings = network_settings[network.name]
swap_amounts = SwapAmounts.from_settings(settings)
if token_ticker == settings.service_token.ticker:
swap_amount_1 = swap_amounts.service_token_1
swap_amount_2 = swap_amounts.service_token_2
swap_amount_3 = swap_amounts.service_token_3
elif token_ticker == settings.transfer_token.ticker:
swap_amount_1 = swap_amounts.transfer_token_1
swap_amount_2 = swap_amounts.transfer_token_2
swap_amount_3 = swap_amounts.transfer_token_3
self.render(
"swap.html",
configuration_file=configuration_file,
kyber=kyber,
uniswap=uniswap,
token=token,
swap_amount_1=swap_amount_1,
swap_amount_2=swap_amount_2,
swap_amount_3=swap_amount_3,
)
def get(self, configuration_file_name, token_ticker):
configuration_file = RaidenConfigurationFile.get_by_filename(
configuration_file_name)
if get_passphrase() is None:
self.render(
"account_unlock.html",
keystore_file_path=configuration_file.account.
keystore_file_path,
return_to=f"/swap/{configuration_file_name}/{token_ticker}",
)
return
w3 = make_web3_provider(
configuration_file.ethereum_client_rpc_endpoint,
configuration_file.account)
kyber = Kyber(w3=w3)
uniswap = Uniswap(w3=w3)
token = Erc20Token.find_by_ticker(token_ticker,
configuration_file.network.name)
swap_amounts = SwapAmounts.from_settings(self.installer_settings)
if token_ticker == self.installer_settings.service_token.ticker:
swap_amount = swap_amounts.service_token
elif token_ticker == self.installer_settings.transfer_token.ticker:
swap_amount = swap_amounts.transfer_token
self.render(
"swap.html",
configuration_file=configuration_file,
kyber=kyber,
uniswap=uniswap,
token=token,
swap_amount=swap_amount,
)
def get(self, configuration_file_name, token_ticker):
configuration_file = RaidenConfigurationFile.get_by_filename(configuration_file_name)
w3 = make_web3_provider(
configuration_file.ethereum_client_rpc_endpoint, configuration_file.account
)
kyber = Kyber(w3=w3)
uniswap = Uniswap(w3=w3)
token = Erc20Token.find_by_ticker(token_ticker)
self.render(
"swap_options.html",
configuration_file=configuration_file,
kyber=kyber,
uniswap=uniswap,
token=token,
)
def setUp(self):
super().setUp()
self.kyber = Kyber(w3=self.w3)
self.uniswap = Uniswap(w3=self.w3)
def test_swap(self):
self._execute_rdn_swap(Kyber(w3=self.w3))
def kyber(test_account: Account, kyber_chain, patch_network):
snapshot_id = take_snapshot()
w3 = make_web3_provider(f"http://localhost:{PORT}", test_account)
yield Kyber(w3)
revert_to_snapshot(snapshot_id)