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Overview
ETH Balance
Eth Value
$8,514.92 (@ $3,332.45/ETH)Token Holdings
Could not find any matches!
- ERC-20 Tokens (18)371.3957273 LINKChainLink To... (LINK)$8,638.66@23.262 STTScatter.cx (STT)$0.00@0.00100 XLABXCELTOKEN PL... (XLAB)$0.00@0.000.1 AMBAmber (AMB)$0.00@0.00811,000,000 AfroXAfroDex$0.01@0.008 BRXBerryXToken254.82727986 EBKEbakus500 HYPEHYPE Token1,000,000 Join iExec RLC airdrop on Telegram (@iExecRLCBot)ERC-20: Join... (Join i...)1 SLVSilverway150 XCELXCELTOKEN1.4 TokenERC-20 TOKEN*[Suspicious]1.7 TokenERC-20 TOKEN*[Suspicious]245.44 TokenERC-20 TOKEN*[Suspicious]132.84 TokenERC-20 TOKEN*[Spam]856,420,144,564 TokenERC-20 TOKEN*[Spam]42,000,000 TokenERC-20 TOKEN*[Spam]17,777.9998 TokenERC-20 TOKEN*[Spam]NFT Tokens (11)claim rewards on apylink.comapylink.comERC-1155claim rewards on get-clink.netget-clink.netERC-1155claim rewards on pooleth.iopooleth.ioERC-1155Reward Club [jAjR9klw]Reward Club [aJueGpMm]ERC-1155
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- Transactions
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- Token Transfers (ERC-20)
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Latest 25 from a total of 50,700 transactions
Transaction Hash |
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Remove Liquidity | 21264665 | 2024-11-25 12:06:23 | 27 days ago | 1732536383 | IN | 0 ETH$0.00 | 0.00113888 | 14.45796509 | ||||
Approve | 20720910 | 2024-09-10 14:49:35 | 103 days ago | 1725979775 | IN | 0 ETH$0.00 | 0.00019748 | 7.06880172 | ||||
Token To Eth Swa... | 20160599 | 2024-06-24 9:18:35 | 182 days ago | 1719220715 | IN | 0 ETH$0.00 | 0.00029384 | 5.27840474 | ||||
Token To Eth Swa... | 20160578 | 2024-06-24 9:14:23 | 182 days ago | 1719220463 | IN | 0 ETH$0.00 | 0.0003238 | 5.81659248 | ||||
Remove Liquidity | 19572892 | 2024-04-03 4:33:47 | 264 days ago | 1712118827 | IN | 0 ETH$0.00 | 0.00193595 | 23.15512423 | ||||
Remove Liquidity | 19429268 | 2024-03-13 23:01:35 | 284 days ago | 1710370895 | IN | 0 ETH$0.00 | 0.00308691 | 49.99542519 | ||||
Approve | 18934108 | 2024-01-04 12:56:23 | 353 days ago | 1704372983 | IN | 0 ETH$0.00 | 0.00052868 | 18.92431774 | ||||
Approve | 17742711 | 2023-07-21 16:29:23 | 520 days ago | 1689956963 | IN | 0 ETH$0.00 | 0.0009048 | 32.38723672 | ||||
Approve | 17079934 | 2023-04-19 10:03:23 | 614 days ago | 1681898603 | IN | 0 ETH$0.00 | 0.00165792 | 59.34500337 | ||||
Add Liquidity | 16942162 | 2023-03-30 19:33:47 | 633 days ago | 1680204827 | IN | 0.00006857 ETH$0.23 | 0.00218306 | 26.56988198 | ||||
Approve | 16574594 | 2023-02-07 4:42:35 | 685 days ago | 1675744955 | IN | 0 ETH$0.00 | 0.00060263 | 21.57104854 | ||||
Token To Token T... | 13700593 | 2021-11-28 5:35:18 | 1121 days ago | 1638077718 | IN | 0 ETH$0.00 | 0.00949218 | 84.19832861 | ||||
Token To Token T... | 13402375 | 2021-10-12 7:42:00 | 1168 days ago | 1634024520 | IN | 0 ETH$0.00 | 0.00659888 | 69 | ||||
Remove Liquidity | 13298060 | 2021-09-25 23:43:46 | 1184 days ago | 1632613426 | IN | 0 ETH$0.00 | 0.00199632 | 30 | ||||
Remove Liquidity | 13298039 | 2021-09-25 23:40:01 | 1184 days ago | 1632613201 | IN | 0 ETH$0.00 | 0.00242463 | 29 | ||||
Remove Liquidity | 13038968 | 2021-08-16 22:31:40 | 1224 days ago | 1629153100 | IN | 0 ETH$0.00 | 0.00359337 | 54 | ||||
Token To Token T... | 13013936 | 2021-08-13 1:49:29 | 1228 days ago | 1628819369 | IN | 0 ETH$0.00 | 0.00419717 | 46.2 | ||||
Approve | 12998252 | 2021-08-10 15:27:43 | 1230 days ago | 1628609263 | IN | 0 ETH$0.00 | 0.00153431 | 54.92044189 | ||||
Remove Liquidity | 12798690 | 2021-07-10 8:51:55 | 1262 days ago | 1625907115 | IN | 0 ETH$0.00 | 0.00082508 | 16 | ||||
Remove Liquidity | 12793320 | 2021-07-09 13:09:59 | 1262 days ago | 1625836199 | IN | 0 ETH$0.00 | 0.00280918 | 38 | ||||
Token To Eth Tra... | 12714360 | 2021-06-27 5:54:10 | 1275 days ago | 1624773250 | IN | 0 ETH$0.00 | 0.00029091 | 4 | ||||
Token To Eth Swa... | 12674703 | 2021-06-21 1:12:44 | 1281 days ago | 1624237964 | IN | 0 ETH$0.00 | 0.00078929 | 11.67094175 | ||||
Eth To Token Swa... | 12467934 | 2021-05-20 0:05:38 | 1313 days ago | 1621469138 | IN | 2.36842065 ETH$7,892.64 | 0.0930628 | 1,376.07831816 | ||||
Approve | 12006421 | 2021-03-09 20:18:02 | 1384 days ago | 1615321082 | IN | 0 ETH$0.00 | 0.00531541 | 115 | ||||
Eth To Token Swa... | 11989530 | 2021-03-07 5:43:51 | 1387 days ago | 1615095831 | IN | 0.1 ETH$333.24 | 0.00557884 | 108 |
Latest 25 internal transactions (View All)
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21464036 | 2024-12-23 8:37:23 | 1 hr ago | 1734943043 | 0.00284953 ETH$9.50 | ||||
21463828 | 2024-12-23 7:55:35 | 2 hrs ago | 1734940535 | 0.03089999 ETH$102.97 | ||||
21463781 | 2024-12-23 7:45:35 | 2 hrs ago | 1734939935 | 0.00710748 ETH$23.69 | ||||
21463666 | 2024-12-23 7:21:47 | 3 hrs ago | 1734938507 | 0.03826511 ETH$127.52 | ||||
21463666 | 2024-12-23 7:21:47 | 3 hrs ago | 1734938507 | 0.0262904 ETH$87.61 | ||||
21463666 | 2024-12-23 7:21:47 | 3 hrs ago | 1734938507 | 0.03884886 ETH$129.46 | ||||
21462776 | 2024-12-23 4:22:59 | 6 hrs ago | 1734927779 | 0.03019999 ETH$100.64 | ||||
21462544 | 2024-12-23 3:36:35 | 6 hrs ago | 1734924995 | 0.0075 ETH$24.99 | ||||
21460626 | 2024-12-22 21:09:23 | 13 hrs ago | 1734901763 | 0.007 ETH$23.33 | ||||
21459525 | 2024-12-22 17:27:47 | 17 hrs ago | 1734888467 | 0.03569999 ETH$118.97 | ||||
21459186 | 2024-12-22 16:19:35 | 18 hrs ago | 1734884375 | 0.00971755 ETH$32.38 | ||||
21457273 | 2024-12-22 9:54:47 | 24 hrs ago | 1734861287 | 0.00326317 ETH$10.87 | ||||
21457161 | 2024-12-22 9:32:11 | 25 hrs ago | 1734859931 | 0.00327175 ETH$10.90 | ||||
21456648 | 2024-12-22 7:48:59 | 26 hrs ago | 1734853739 | 0.0157424 ETH$52.46 | ||||
21455341 | 2024-12-22 3:26:11 | 31 hrs ago | 1734837971 | 0.01 ETH$33.32 | ||||
21453569 | 2024-12-21 21:29:23 | 37 hrs ago | 1734816563 | 0.00504174 ETH$16.80 | ||||
21452929 | 2024-12-21 19:19:59 | 39 hrs ago | 1734808799 | 0.02459999 ETH$81.98 | ||||
21452911 | 2024-12-21 19:16:23 | 39 hrs ago | 1734808583 | 0.03184197 ETH$106.11 | ||||
21452380 | 2024-12-21 17:28:47 | 41 hrs ago | 1734802127 | 0.04297141 ETH$143.20 | ||||
21449365 | 2024-12-21 7:22:59 | 2 days ago | 1734765779 | 0.03029999 ETH$100.97 | ||||
21446518 | 2024-12-20 21:48:11 | 2 days ago | 1734731291 | 0.007 ETH$23.33 | ||||
21439791 | 2024-12-19 23:16:23 | 3 days ago | 1734650183 | 0.0307021 ETH$102.31 | ||||
21437634 | 2024-12-19 16:03:11 | 3 days ago | 1734624191 | 0.008 ETH$26.66 | ||||
21437007 | 2024-12-19 13:56:59 | 3 days ago | 1734616619 | 0.007 ETH$23.33 | ||||
21436915 | 2024-12-19 13:38:35 | 3 days ago | 1734615515 | 0.00775199 ETH$25.83 |
Minimal Proxy Contract for 0x2157a7894439191e520825fe9399ab8655e0f708
Contract Source Code (Vyper language format)
# @title Uniswap Exchange Interface V1 # @notice Source code found at https://github.com/uniswap # @notice Use at your own risk contract Factory(): def getExchange(token_addr: address) -> address: constant contract Exchange(): def getEthToTokenOutputPrice(tokens_bought: uint256) -> uint256(wei): constant def ethToTokenTransferInput(min_tokens: uint256, deadline: timestamp, recipient: address) -> uint256: modifying def ethToTokenTransferOutput(tokens_bought: uint256, deadline: timestamp, recipient: address) -> uint256(wei): modifying TokenPurchase: event({buyer: indexed(address), eth_sold: indexed(uint256(wei)), tokens_bought: indexed(uint256)}) EthPurchase: event({buyer: indexed(address), tokens_sold: indexed(uint256), eth_bought: indexed(uint256(wei))}) AddLiquidity: event({provider: indexed(address), eth_amount: indexed(uint256(wei)), token_amount: indexed(uint256)}) RemoveLiquidity: event({provider: indexed(address), eth_amount: indexed(uint256(wei)), token_amount: indexed(uint256)}) Transfer: event({_from: indexed(address), _to: indexed(address), _value: uint256}) Approval: event({_owner: indexed(address), _spender: indexed(address), _value: uint256}) name: public(bytes32) # Uniswap V1 symbol: public(bytes32) # UNI-V1 decimals: public(uint256) # 18 totalSupply: public(uint256) # total number of UNI in existence balances: uint256[address] # UNI balance of an address allowances: (uint256[address])[address] # UNI allowance of one address on another token: address(ERC20) # address of the ERC20 token traded on this contract factory: Factory # interface for the factory that created this contract # @dev This function acts as a contract constructor which is not currently supported in contracts deployed # using create_with_code_of(). It is called once by the factory during contract creation. @public def setup(token_addr: address): assert (self.factory == ZERO_ADDRESS and self.token == ZERO_ADDRESS) and token_addr != ZERO_ADDRESS self.factory = msg.sender self.token = token_addr self.name = 0x556e697377617020563100000000000000000000000000000000000000000000 self.symbol = 0x554e492d56310000000000000000000000000000000000000000000000000000 self.decimals = 18 # @notice Deposit ETH and Tokens (self.token) at current ratio to mint UNI tokens. # @dev min_liquidity does nothing when total UNI supply is 0. # @param min_liquidity Minimum number of UNI sender will mint if total UNI supply is greater than 0. # @param max_tokens Maximum number of tokens deposited. Deposits max amount if total UNI supply is 0. # @param deadline Time after which this transaction can no longer be executed. # @return The amount of UNI minted. @public @payable def addLiquidity(min_liquidity: uint256, max_tokens: uint256, deadline: timestamp) -> uint256: assert deadline > block.timestamp and (max_tokens > 0 and msg.value > 0) total_liquidity: uint256 = self.totalSupply if total_liquidity > 0: assert min_liquidity > 0 eth_reserve: uint256(wei) = self.balance - msg.value token_reserve: uint256 = self.token.balanceOf(self) token_amount: uint256 = msg.value * token_reserve / eth_reserve + 1 liquidity_minted: uint256 = msg.value * total_liquidity / eth_reserve assert max_tokens >= token_amount and liquidity_minted >= min_liquidity self.balances[msg.sender] += liquidity_minted self.totalSupply = total_liquidity + liquidity_minted assert self.token.transferFrom(msg.sender, self, token_amount) log.AddLiquidity(msg.sender, msg.value, token_amount) log.Transfer(ZERO_ADDRESS, msg.sender, liquidity_minted) return liquidity_minted else: assert (self.factory != ZERO_ADDRESS and self.token != ZERO_ADDRESS) and msg.value >= 1000000000 assert self.factory.getExchange(self.token) == self token_amount: uint256 = max_tokens initial_liquidity: uint256 = as_unitless_number(self.balance) self.totalSupply = initial_liquidity self.balances[msg.sender] = initial_liquidity assert self.token.transferFrom(msg.sender, self, token_amount) log.AddLiquidity(msg.sender, msg.value, token_amount) log.Transfer(ZERO_ADDRESS, msg.sender, initial_liquidity) return initial_liquidity # @dev Burn UNI tokens to withdraw ETH and Tokens at current ratio. # @param amount Amount of UNI burned. # @param min_eth Minimum ETH withdrawn. # @param min_tokens Minimum Tokens withdrawn. # @param deadline Time after which this transaction can no longer be executed. # @return The amount of ETH and Tokens withdrawn. @public def removeLiquidity(amount: uint256, min_eth: uint256(wei), min_tokens: uint256, deadline: timestamp) -> (uint256(wei), uint256): assert (amount > 0 and deadline > block.timestamp) and (min_eth > 0 and min_tokens > 0) total_liquidity: uint256 = self.totalSupply assert total_liquidity > 0 token_reserve: uint256 = self.token.balanceOf(self) eth_amount: uint256(wei) = amount * self.balance / total_liquidity token_amount: uint256 = amount * token_reserve / total_liquidity assert eth_amount >= min_eth and token_amount >= min_tokens self.balances[msg.sender] -= amount self.totalSupply = total_liquidity - amount send(msg.sender, eth_amount) assert self.token.transfer(msg.sender, token_amount) log.RemoveLiquidity(msg.sender, eth_amount, token_amount) log.Transfer(msg.sender, ZERO_ADDRESS, amount) return eth_amount, token_amount # @dev Pricing function for converting between ETH and Tokens. # @param input_amount Amount of ETH or Tokens being sold. # @param input_reserve Amount of ETH or Tokens (input type) in exchange reserves. # @param output_reserve Amount of ETH or Tokens (output type) in exchange reserves. # @return Amount of ETH or Tokens bought. @private @constant def getInputPrice(input_amount: uint256, input_reserve: uint256, output_reserve: uint256) -> uint256: assert input_reserve > 0 and output_reserve > 0 input_amount_with_fee: uint256 = input_amount * 997 numerator: uint256 = input_amount_with_fee * output_reserve denominator: uint256 = (input_reserve * 1000) + input_amount_with_fee return numerator / denominator # @dev Pricing function for converting between ETH and Tokens. # @param output_amount Amount of ETH or Tokens being bought. # @param input_reserve Amount of ETH or Tokens (input type) in exchange reserves. # @param output_reserve Amount of ETH or Tokens (output type) in exchange reserves. # @return Amount of ETH or Tokens sold. @private @constant def getOutputPrice(output_amount: uint256, input_reserve: uint256, output_reserve: uint256) -> uint256: assert input_reserve > 0 and output_reserve > 0 numerator: uint256 = input_reserve * output_amount * 1000 denominator: uint256 = (output_reserve - output_amount) * 997 return numerator / denominator + 1 @private def ethToTokenInput(eth_sold: uint256(wei), min_tokens: uint256, deadline: timestamp, buyer: address, recipient: address) -> uint256: assert deadline >= block.timestamp and (eth_sold > 0 and min_tokens > 0) token_reserve: uint256 = self.token.balanceOf(self) tokens_bought: uint256 = self.getInputPrice(as_unitless_number(eth_sold), as_unitless_number(self.balance - eth_sold), token_reserve) assert tokens_bought >= min_tokens assert self.token.transfer(recipient, tokens_bought) log.TokenPurchase(buyer, eth_sold, tokens_bought) return tokens_bought # @notice Convert ETH to Tokens. # @dev User specifies exact input (msg.value). # @dev User cannot specify minimum output or deadline. @public @payable def __default__(): self.ethToTokenInput(msg.value, 1, block.timestamp, msg.sender, msg.sender) # @notice Convert ETH to Tokens. # @dev User specifies exact input (msg.value) and minimum output. # @param min_tokens Minimum Tokens bought. # @param deadline Time after which this transaction can no longer be executed. # @return Amount of Tokens bought. @public @payable def ethToTokenSwapInput(min_tokens: uint256, deadline: timestamp) -> uint256: return self.ethToTokenInput(msg.value, min_tokens, deadline, msg.sender, msg.sender) # @notice Convert ETH to Tokens and transfers Tokens to recipient. # @dev User specifies exact input (msg.value) and minimum output # @param min_tokens Minimum Tokens bought. # @param deadline Time after which this transaction can no longer be executed. # @param recipient The address that receives output Tokens. # @return Amount of Tokens bought. @public @payable def ethToTokenTransferInput(min_tokens: uint256, deadline: timestamp, recipient: address) -> uint256: assert recipient != self and recipient != ZERO_ADDRESS return self.ethToTokenInput(msg.value, min_tokens, deadline, msg.sender, recipient) @private def ethToTokenOutput(tokens_bought: uint256, max_eth: uint256(wei), deadline: timestamp, buyer: address, recipient: address) -> uint256(wei): assert deadline >= block.timestamp and (tokens_bought > 0 and max_eth > 0) token_reserve: uint256 = self.token.balanceOf(self) eth_sold: uint256 = self.getOutputPrice(tokens_bought, as_unitless_number(self.balance - max_eth), token_reserve) # Throws if eth_sold > max_eth eth_refund: uint256(wei) = max_eth - as_wei_value(eth_sold, 'wei') if eth_refund > 0: send(buyer, eth_refund) assert self.token.transfer(recipient, tokens_bought) log.TokenPurchase(buyer, as_wei_value(eth_sold, 'wei'), tokens_bought) return as_wei_value(eth_sold, 'wei') # @notice Convert ETH to Tokens. # @dev User specifies maximum input (msg.value) and exact output. # @param tokens_bought Amount of tokens bought. # @param deadline Time after which this transaction can no longer be executed. # @return Amount of ETH sold. @public @payable def ethToTokenSwapOutput(tokens_bought: uint256, deadline: timestamp) -> uint256(wei): return self.ethToTokenOutput(tokens_bought, msg.value, deadline, msg.sender, msg.sender) # @notice Convert ETH to Tokens and transfers Tokens to recipient. # @dev User specifies maximum input (msg.value) and exact output. # @param tokens_bought Amount of tokens bought. # @param deadline Time after which this transaction can no longer be executed. # @param recipient The address that receives output Tokens. # @return Amount of ETH sold. @public @payable def ethToTokenTransferOutput(tokens_bought: uint256, deadline: timestamp, recipient: address) -> uint256(wei): assert recipient != self and recipient != ZERO_ADDRESS return self.ethToTokenOutput(tokens_bought, msg.value, deadline, msg.sender, recipient) @private def tokenToEthInput(tokens_sold: uint256, min_eth: uint256(wei), deadline: timestamp, buyer: address, recipient: address) -> uint256(wei): assert deadline >= block.timestamp and (tokens_sold > 0 and min_eth > 0) token_reserve: uint256 = self.token.balanceOf(self) eth_bought: uint256 = self.getInputPrice(tokens_sold, token_reserve, as_unitless_number(self.balance)) wei_bought: uint256(wei) = as_wei_value(eth_bought, 'wei') assert wei_bought >= min_eth send(recipient, wei_bought) assert self.token.transferFrom(buyer, self, tokens_sold) log.EthPurchase(buyer, tokens_sold, wei_bought) return wei_bought # @notice Convert Tokens to ETH. # @dev User specifies exact input and minimum output. # @param tokens_sold Amount of Tokens sold. # @param min_eth Minimum ETH purchased. # @param deadline Time after which this transaction can no longer be executed. # @return Amount of ETH bought. @public def tokenToEthSwapInput(tokens_sold: uint256, min_eth: uint256(wei), deadline: timestamp) -> uint256(wei): return self.tokenToEthInput(tokens_sold, min_eth, deadline, msg.sender, msg.sender) # @notice Convert Tokens to ETH and transfers ETH to recipient. # @dev User specifies exact input and minimum output. # @param tokens_sold Amount of Tokens sold. # @param min_eth Minimum ETH purchased. # @param deadline Time after which this transaction can no longer be executed. # @param recipient The address that receives output ETH. # @return Amount of ETH bought. @public def tokenToEthTransferInput(tokens_sold: uint256, min_eth: uint256(wei), deadline: timestamp, recipient: address) -> uint256(wei): assert recipient != self and recipient != ZERO_ADDRESS return self.tokenToEthInput(tokens_sold, min_eth, deadline, msg.sender, recipient) @private def tokenToEthOutput(eth_bought: uint256(wei), max_tokens: uint256, deadline: timestamp, buyer: address, recipient: address) -> uint256: assert deadline >= block.timestamp and eth_bought > 0 token_reserve: uint256 = self.token.balanceOf(self) tokens_sold: uint256 = self.getOutputPrice(as_unitless_number(eth_bought), token_reserve, as_unitless_number(self.balance)) # tokens sold is always > 0 assert max_tokens >= tokens_sold send(recipient, eth_bought) assert self.token.transferFrom(buyer, self, tokens_sold) log.EthPurchase(buyer, tokens_sold, eth_bought) return tokens_sold # @notice Convert Tokens to ETH. # @dev User specifies maximum input and exact output. # @param eth_bought Amount of ETH purchased. # @param max_tokens Maximum Tokens sold. # @param deadline Time after which this transaction can no longer be executed. # @return Amount of Tokens sold. @public def tokenToEthSwapOutput(eth_bought: uint256(wei), max_tokens: uint256, deadline: timestamp) -> uint256: return self.tokenToEthOutput(eth_bought, max_tokens, deadline, msg.sender, msg.sender) # @notice Convert Tokens to ETH and transfers ETH to recipient. # @dev User specifies maximum input and exact output. # @param eth_bought Amount of ETH purchased. # @param max_tokens Maximum Tokens sold. # @param deadline Time after which this transaction can no longer be executed. # @param recipient The address that receives output ETH. # @return Amount of Tokens sold. @public def tokenToEthTransferOutput(eth_bought: uint256(wei), max_tokens: uint256, deadline: timestamp, recipient: address) -> uint256: assert recipient != self and recipient != ZERO_ADDRESS return self.tokenToEthOutput(eth_bought, max_tokens, deadline, msg.sender, recipient) @private def tokenToTokenInput(tokens_sold: uint256, min_tokens_bought: uint256, min_eth_bought: uint256(wei), deadline: timestamp, buyer: address, recipient: address, exchange_addr: address) -> uint256: assert (deadline >= block.timestamp and tokens_sold > 0) and (min_tokens_bought > 0 and min_eth_bought > 0) assert exchange_addr != self and exchange_addr != ZERO_ADDRESS token_reserve: uint256 = self.token.balanceOf(self) eth_bought: uint256 = self.getInputPrice(tokens_sold, token_reserve, as_unitless_number(self.balance)) wei_bought: uint256(wei) = as_wei_value(eth_bought, 'wei') assert wei_bought >= min_eth_bought assert self.token.transferFrom(buyer, self, tokens_sold) tokens_bought: uint256 = Exchange(exchange_addr).ethToTokenTransferInput(min_tokens_bought, deadline, recipient, value=wei_bought) log.EthPurchase(buyer, tokens_sold, wei_bought) return tokens_bought # @notice Convert Tokens (self.token) to Tokens (token_addr). # @dev User specifies exact input and minimum output. # @param tokens_sold Amount of Tokens sold. # @param min_tokens_bought Minimum Tokens (token_addr) purchased. # @param min_eth_bought Minimum ETH purchased as intermediary. # @param deadline Time after which this transaction can no longer be executed. # @param token_addr The address of the token being purchased. # @return Amount of Tokens (token_addr) bought. @public def tokenToTokenSwapInput(tokens_sold: uint256, min_tokens_bought: uint256, min_eth_bought: uint256(wei), deadline: timestamp, token_addr: address) -> uint256: exchange_addr: address = self.factory.getExchange(token_addr) return self.tokenToTokenInput(tokens_sold, min_tokens_bought, min_eth_bought, deadline, msg.sender, msg.sender, exchange_addr) # @notice Convert Tokens (self.token) to Tokens (token_addr) and transfers # Tokens (token_addr) to recipient. # @dev User specifies exact input and minimum output. # @param tokens_sold Amount of Tokens sold. # @param min_tokens_bought Minimum Tokens (token_addr) purchased. # @param min_eth_bought Minimum ETH purchased as intermediary. # @param deadline Time after which this transaction can no longer be executed. # @param recipient The address that receives output ETH. # @param token_addr The address of the token being purchased. # @return Amount of Tokens (token_addr) bought. @public def tokenToTokenTransferInput(tokens_sold: uint256, min_tokens_bought: uint256, min_eth_bought: uint256(wei), deadline: timestamp, recipient: address, token_addr: address) -> uint256: exchange_addr: address = self.factory.getExchange(token_addr) return self.tokenToTokenInput(tokens_sold, min_tokens_bought, min_eth_bought, deadline, msg.sender, recipient, exchange_addr) @private def tokenToTokenOutput(tokens_bought: uint256, max_tokens_sold: uint256, max_eth_sold: uint256(wei), deadline: timestamp, buyer: address, recipient: address, exchange_addr: address) -> uint256: assert deadline >= block.timestamp and (tokens_bought > 0 and max_eth_sold > 0) assert exchange_addr != self and exchange_addr != ZERO_ADDRESS eth_bought: uint256(wei) = Exchange(exchange_addr).getEthToTokenOutputPrice(tokens_bought) token_reserve: uint256 = self.token.balanceOf(self) tokens_sold: uint256 = self.getOutputPrice(as_unitless_number(eth_bought), token_reserve, as_unitless_number(self.balance)) # tokens sold is always > 0 assert max_tokens_sold >= tokens_sold and max_eth_sold >= eth_bought assert self.token.transferFrom(buyer, self, tokens_sold) eth_sold: uint256(wei) = Exchange(exchange_addr).ethToTokenTransferOutput(tokens_bought, deadline, recipient, value=eth_bought) log.EthPurchase(buyer, tokens_sold, eth_bought) return tokens_sold # @notice Convert Tokens (self.token) to Tokens (token_addr). # @dev User specifies maximum input and exact output. # @param tokens_bought Amount of Tokens (token_addr) bought. # @param max_tokens_sold Maximum Tokens (self.token) sold. # @param max_eth_sold Maximum ETH purchased as intermediary. # @param deadline Time after which this transaction can no longer be executed. # @param token_addr The address of the token being purchased. # @return Amount of Tokens (self.token) sold. @public def tokenToTokenSwapOutput(tokens_bought: uint256, max_tokens_sold: uint256, max_eth_sold: uint256(wei), deadline: timestamp, token_addr: address) -> uint256: exchange_addr: address = self.factory.getExchange(token_addr) return self.tokenToTokenOutput(tokens_bought, max_tokens_sold, max_eth_sold, deadline, msg.sender, msg.sender, exchange_addr) # @notice Convert Tokens (self.token) to Tokens (token_addr) and transfers # Tokens (token_addr) to recipient. # @dev User specifies maximum input and exact output. # @param tokens_bought Amount of Tokens (token_addr) bought. # @param max_tokens_sold Maximum Tokens (self.token) sold. # @param max_eth_sold Maximum ETH purchased as intermediary. # @param deadline Time after which this transaction can no longer be executed. # @param recipient The address that receives output ETH. # @param token_addr The address of the token being purchased. # @return Amount of Tokens (self.token) sold. @public def tokenToTokenTransferOutput(tokens_bought: uint256, max_tokens_sold: uint256, max_eth_sold: uint256(wei), deadline: timestamp, recipient: address, token_addr: address) -> uint256: exchange_addr: address = self.factory.getExchange(token_addr) return self.tokenToTokenOutput(tokens_bought, max_tokens_sold, max_eth_sold, deadline, msg.sender, recipient, exchange_addr) # @notice Convert Tokens (self.token) to Tokens (exchange_addr.token). # @dev Allows trades through contracts that were not deployed from the same factory. # @dev User specifies exact input and minimum output. # @param tokens_sold Amount of Tokens sold. # @param min_tokens_bought Minimum Tokens (token_addr) purchased. # @param min_eth_bought Minimum ETH purchased as intermediary. # @param deadline Time after which this transaction can no longer be executed. # @param exchange_addr The address of the exchange for the token being purchased. # @return Amount of Tokens (exchange_addr.token) bought. @public def tokenToExchangeSwapInput(tokens_sold: uint256, min_tokens_bought: uint256, min_eth_bought: uint256(wei), deadline: timestamp, exchange_addr: address) -> uint256: return self.tokenToTokenInput(tokens_sold, min_tokens_bought, min_eth_bought, deadline, msg.sender, msg.sender, exchange_addr) # @notice Convert Tokens (self.token) to Tokens (exchange_addr.token) and transfers # Tokens (exchange_addr.token) to recipient. # @dev Allows trades through contracts that were not deployed from the same factory. # @dev User specifies exact input and minimum output. # @param tokens_sold Amount of Tokens sold. # @param min_tokens_bought Minimum Tokens (token_addr) purchased. # @param min_eth_bought Minimum ETH purchased as intermediary. # @param deadline Time after which this transaction can no longer be executed. # @param recipient The address that receives output ETH. # @param exchange_addr The address of the exchange for the token being purchased. # @return Amount of Tokens (exchange_addr.token) bought. @public def tokenToExchangeTransferInput(tokens_sold: uint256, min_tokens_bought: uint256, min_eth_bought: uint256(wei), deadline: timestamp, recipient: address, exchange_addr: address) -> uint256: assert recipient != self return self.tokenToTokenInput(tokens_sold, min_tokens_bought, min_eth_bought, deadline, msg.sender, recipient, exchange_addr) # @notice Convert Tokens (self.token) to Tokens (exchange_addr.token). # @dev Allows trades through contracts that were not deployed from the same factory. # @dev User specifies maximum input and exact output. # @param tokens_bought Amount of Tokens (token_addr) bought. # @param max_tokens_sold Maximum Tokens (self.token) sold. # @param max_eth_sold Maximum ETH purchased as intermediary. # @param deadline Time after which this transaction can no longer be executed. # @param exchange_addr The address of the exchange for the token being purchased. # @return Amount of Tokens (self.token) sold. @public def tokenToExchangeSwapOutput(tokens_bought: uint256, max_tokens_sold: uint256, max_eth_sold: uint256(wei), deadline: timestamp, exchange_addr: address) -> uint256: return self.tokenToTokenOutput(tokens_bought, max_tokens_sold, max_eth_sold, deadline, msg.sender, msg.sender, exchange_addr) # @notice Convert Tokens (self.token) to Tokens (exchange_addr.token) and transfers # Tokens (exchange_addr.token) to recipient. # @dev Allows trades through contracts that were not deployed from the same factory. # @dev User specifies maximum input and exact output. # @param tokens_bought Amount of Tokens (token_addr) bought. # @param max_tokens_sold Maximum Tokens (self.token) sold. # @param max_eth_sold Maximum ETH purchased as intermediary. # @param deadline Time after which this transaction can no longer be executed. # @param recipient The address that receives output ETH. # @param token_addr The address of the token being purchased. # @return Amount of Tokens (self.token) sold. @public def tokenToExchangeTransferOutput(tokens_bought: uint256, max_tokens_sold: uint256, max_eth_sold: uint256(wei), deadline: timestamp, recipient: address, exchange_addr: address) -> uint256: assert recipient != self return self.tokenToTokenOutput(tokens_bought, max_tokens_sold, max_eth_sold, deadline, msg.sender, recipient, exchange_addr) # @notice Public price function for ETH to Token trades with an exact input. # @param eth_sold Amount of ETH sold. # @return Amount of Tokens that can be bought with input ETH. @public @constant def getEthToTokenInputPrice(eth_sold: uint256(wei)) -> uint256: assert eth_sold > 0 token_reserve: uint256 = self.token.balanceOf(self) return self.getInputPrice(as_unitless_number(eth_sold), as_unitless_number(self.balance), token_reserve) # @notice Public price function for ETH to Token trades with an exact output. # @param tokens_bought Amount of Tokens bought. # @return Amount of ETH needed to buy output Tokens. @public @constant def getEthToTokenOutputPrice(tokens_bought: uint256) -> uint256(wei): assert tokens_bought > 0 token_reserve: uint256 = self.token.balanceOf(self) eth_sold: uint256 = self.getOutputPrice(tokens_bought, as_unitless_number(self.balance), token_reserve) return as_wei_value(eth_sold, 'wei') # @notice Public price function for Token to ETH trades with an exact input. # @param tokens_sold Amount of Tokens sold. # @return Amount of ETH that can be bought with input Tokens. @public @constant def getTokenToEthInputPrice(tokens_sold: uint256) -> uint256(wei): assert tokens_sold > 0 token_reserve: uint256 = self.token.balanceOf(self) eth_bought: uint256 = self.getInputPrice(tokens_sold, token_reserve, as_unitless_number(self.balance)) return as_wei_value(eth_bought, 'wei') # @notice Public price function for Token to ETH trades with an exact output. # @param eth_bought Amount of output ETH. # @return Amount of Tokens needed to buy output ETH. @public @constant def getTokenToEthOutputPrice(eth_bought: uint256(wei)) -> uint256: assert eth_bought > 0 token_reserve: uint256 = self.token.balanceOf(self) return self.getOutputPrice(as_unitless_number(eth_bought), token_reserve, as_unitless_number(self.balance)) # @return Address of Token that is sold on this exchange. @public @constant def tokenAddress() -> address: return self.token # @return Address of factory that created this exchange. @public @constant def factoryAddress() -> address(Factory): return self.factory # ERC20 compatibility for exchange liquidity modified from # https://github.com/ethereum/vyper/blob/master/examples/tokens/ERC20.vy @public @constant def balanceOf(_owner : address) -> uint256: return self.balances[_owner] @public def transfer(_to : address, _value : uint256) -> bool: self.balances[msg.sender] -= _value self.balances[_to] += _value log.Transfer(msg.sender, _to, _value) return True @public def transferFrom(_from : address, _to : address, _value : uint256) -> bool: self.balances[_from] -= _value self.balances[_to] += _value self.allowances[_from][msg.sender] -= _value log.Transfer(_from, _to, _value) return True @public def approve(_spender : address, _value : uint256) -> bool: self.allowances[msg.sender][_spender] = _value log.Approval(msg.sender, _spender, _value) return True @public @constant def allowance(_owner : address, _spender : address) -> uint256: return self.allowances[_owner][_spender]
Contract ABI
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