Noah Router

Contract info

Contract name: Noah Router

View NoahRouter.sol on Github.

EOS EVM Network Contract address: 0x1c8f68e8AdBD75c23281e5c88E44D0b7023a4238 View the Noah Swap:Router contract on evm

Read functions

WETH

function WETH() external pure returns (address);

Returns the canonical address fo EOS EVM: WEOS token

factory

function factory() external pure returns (address);

Returns the canonical address for Noah Swap:Factory contract on evm

getAmountOut

function getAmountOut(uint feeRate,uint amountIn, uint reserveIn, uint reserveOut) internal pure returns (uint amountOut);

getAmountIn

function getAmountIn(uint feeRate,uint amountOut, uint reserveIn, uint reserveOut) internal pure returns (uint amountIn);

getAmountsOut

function getAmountsOut(uint amountIn, address[] memory path) internal view returns (uint[] memory amounts);

getAmountsIn

function getAmountsIn(uint amountOut, address[] memory path) internal view returns (uint[] memory amounts);

quote

function quote(uint amountA, uint reserveA, uint reserveB) internal pure returns (uint amountB);

Write functions

addLiquidity

function addLiquidity(
  address tokenA,
  address tokenB,
  uint amountADesired,
  uint amountBDesired,
  uint amountAMin,
  uint amountBMin,
  address to,
  uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);

Adds liquidity to a pool.

Name	Type	Description
tokenA	address	The contract address of one token from your liquidity pair.
tokenB	address	The contract address of the other token from your liquidity pair.
amountADesired	uint	The amount of tokenA you'd like to provide as liquidity.
amountBDesired	uint	The amount of tokenA you'd like to provide as liquidity.
amountAMin	uint	The minimum amount of tokenA to provide (slippage impact).
amountBMin	uint	The minimum amount of tokenB to provide (slippage impact).
to	address	Address of LP Token recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

addLiquidityETH

function addLiquidityETH(
  address token,
  uint amountTokenDesired,
  uint amountTokenMin,
  uint amountETHMin,
  address to,
  uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);

Adds liquidity to a token A⇄WEOS pool.

Name	Type
addLiquidityETH	uint	The payable amount in EOS.
token	address	The contract address of the token to add liquidity.
amountTokenDesired	uint	The amount of the token you'd like to provide as liquidity.
amountTokenMin	uint	The minimum amount of the token to provide (slippage impact).
amountETHMin	uint	The minimum amount of EOS to provide (slippage impact).
to	address	Address of LP Token recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

removeLiquidity

function removeLiquidity(
  address tokenA,
  address tokenB,
  uint liquidity,
  uint amountAMin,
  uint amountBMin,
  address to,
  uint deadline
) external returns (uint amountA, uint amountB);

Removes liquidity from a token A⇄token B pool.

Name	Type
tokenA	address	The contract address of one token from your liquidity pair.
tokenB	address	The contract address of the other token from your liquidity pair.
liquidity	uint	The amount of LP Tokens to remove.
amountAMin	uint	The minimum amount of tokenA to remove (slippage impact).
amountBMin	uint	The minimum amount of tokenB to remove (slippage impact).
to	address	Address of LP Token recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

removeLiquidityETH

function removeLiquidityETH(
  address token,
  uint liquidity,
  uint amountTokenMin,
  uint amountETHMin,
  address to,
  uint deadline
) external returns (uint amountToken, uint amountETH);

Removes liquidity from a token A⇄WEOS pool.

Name	Type
token	address	The contract address of the token to remove liquidity.
liquidity	uint	The amount of LP Tokens to remove.
amountTokenMin	uint	The minimum amount of the token to remove (slippage impact).
amountETHMin	uint	The minimum amount of EOS to remove (slippage impact).
to	address	Address of LP Token recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

removeLiquidityETHSupportingFeeOnTransferTokens

function removeLiquidityETHSupportingFeeOnTransferTokens(
  address token,
  uint liquidity,
  uint amountTokenMin,
  uint amountETHMin,
  address to,
  uint deadline
) external returns (uint amountETH);

Removes liquidity from a token A⇄WEOS for tokens that take a fee on transfer.

Name	Type
token	address	The contract address of the token to remove liquidity.
liquidity	uint	The amount of LP Tokens to remove.
amountTokenMin	uint	The minimum amount of the token to remove (slippage impact).
amountETHMin	uint	The minimum amount of EOS to remove (slippage impact).
to	address	Address of LP Token recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

removeLiquidityETHWithPermit

function removeLiquidityETHWithPermit(
  address token,
  uint liquidity,
  uint amountTokenMin,
  uint amountETHMin,
  address to,
  uint deadline,
  bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);

Removes liquidity from a token A⇄WEOS and receives EOS, without pre-approval, via permit.

Name	Type
token	address	The contract address of the token to remove liquidity.
liquidity	uint	The amount of LP Tokens to remove.
amountTokenMin	uint	The minimum amount of the token to remove (slippage impact).
amountETHMin	uint	The minimum amount of EOS to remove (slippage impact).
to	address	Address of LP Token recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.
approveMax	bool	Whether or not the approval amount in the signature is for liquidity or uint(-1).
v	uint8	The v component of the permit signature.
r	bytes32	The r component of the permit signature.
s	bytes32	The s component of the permit signature.

removeLiquidityETHWithPermitSupportingFeeOnTransferTokens

function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
  address token,
  uint liquidity,
  uint amountTokenMin,
  uint amountETHMin,
  address to,
  uint deadline,
  bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);

Removes liquidity from a token A⇄WEOS and receives EOS via permit for tokens that take a fee on transfer.

Name	Type
token	address	The contract address of the token to remove liquidity.
liquidity	uint	The amount of LP Tokens to remove.
amountTokenMin	uint	The minimum amount of the token to remove (slippage impact).
amountETHMin	uint	The minimum amount of EOS to remove (slippage impact).
to	address	Address of LP Token recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.
approveMax	bool	Whether or not the approval amount in the signature is for liquidity or uint(-1).
v	uint8	The v component of the permit signature.
r	bytes32	The r component of the permit signature.
s	bytes32	The s component of the permit signature.

removeLiquidityWithPermit

function removeLiquidityWithPermit(
  address tokenA,
  address tokenB,
  uint liquidity,
  uint amountAMin,
  uint amountBMin,
  address to,
  uint deadline,
  bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);

Removes liquidity from a token A⇄token B, without pre-approval, via permit.

Name	Type
tokenA	address	The contract address of one token from your liquidity pair.
tokenB	address	The contract address of the other token from your liquidity pair.
liquidity	uint	The amount of LP Tokens to remove.
amountTokenMin	uint	The minimum amount of the token to remove (slippage impact).
amountETHMin	uint	The minimum amount of EOS to remove (slippage impact).
to	address	Address of LP Token recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.
approveMax	bool	Whether or not the approval amount in the signature is for liquidity or uint(-1).
v	uint8	The v component of the permit signature.
r	bytes32	The r component of the permit signature.
s	bytes32	The s component of the permit signature.

swapETHForExactTokens

function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
  external
  payable
  returns (uint[] memory amounts);

Receive an exact amount of output tokens for as little EOS as possible.

Name	Type
swapETHForExactTokens	uint	Payable EOS amount.
amountOut	uint	The amount tokens to receive.
path (address[])	address	An array of token addresses. path.length must be >= 2. Pools for each consecutive pair of addresses must exist and have liquidity.
to	address	Address of recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

swapExactETHForTokens

function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
  external
  payable
  returns (uint[] memory amounts);

Receive as many output tokens as possible for an exact amount of EOS.

Name	Type
swapExactETHForTokens	uint	Payable EOS amount.
amountOutMin	uint	The minimum amount tokens to receive.
path (address[])	address	An array of token addresses. path.length must be >= 2. Pools for each consecutive pair of addresses must exist and have liquidity.
to	address	Address of recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

swapExactETHForTokensSupportingFeeOnTransferTokens

function swapExactETHForTokensSupportingFeeOnTransferTokens(
  uint amountOutMin,
  address[] calldata path,
  address to,
  uint deadline
) external payable;

Receive as many output tokens as possible for an exact amount of EOS. Supports tokens that take a fee on transfer.

Name	Type
swapExactETHForTokensSupportingFeeOnTransferTokens	uint	Payable EOS amount.
amountOutMin	uint	The minimum amount tokens to receive.
path (address[])	address	An array of token addresses. path.length must be >= 2. Pools for each consecutive pair of addresses must exist and have liquidity.
to	address	Address of recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

swapExactTokensForETH

function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
  external
  returns (uint[] memory amounts);

Receive as much EOS as possible for an exact amount of input tokens.

Name	Type
amountIn	uint	Payable amount of input tokens.
amountOutMin	uint	The minimum amount tokens to receive.
path (address[])	address	An array of token addresses. path.length must be >= 2. Pools for each consecutive pair of addresses must exist and have liquidity.
to	address	Address of recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

swapExactTokensForETHSupportingFeeOnTransferTokens

function swapExactTokensForETHSupportingFeeOnTransferTokens(
  uint amountIn,
  uint amountOutMin,
  address[] calldata path,
  address to,
  uint deadline
) external;

Receive as much EOS as possible for an exact amount of tokens. Supports tokens that take a fee on transfer.

Name	Type
amountIn	uint	Payable amount of input tokens.
amountOutMin	uint	The minimum amount tokens to receive.
path (address[])	address	An array of token addresses. path.length must be >= 2. Pools for each consecutive pair of addresses must exist and have liquidity.
to	address	Address of recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

swapExactTokensForTokens

function swapExactTokensForTokens(
  uint amountIn,
  uint amountOutMin,
  address[] calldata path,
  address to,
  uint deadline
) external returns (uint[] memory amounts);

Receive as many output tokens as possible for an exact amount of input tokens.

Name	Type
amountIn	uint	Payable amount of input tokens.
amountOutMin	uint	The minimum amount tokens to receive.
path (address[])	address	An array of token addresses. path.length must be >= 2. Pools for each consecutive pair of addresses must exist and have liquidity.
to	address	Address of recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

swapExactTokensForTokensSupportingFeeOnTransferTokens

function swapExactTokensForTokensSupportingFeeOnTransferTokens(
  uint amountIn,
  uint amountOutMin,
  address[] calldata path,
  address to,
  uint deadline
) external;

Receive as many output tokens as possible for an exact amount of input tokens. Supports tokens that take a fee on transfer.

Name	Type
amountIn	uint	Payable amount of input tokens.
amountOutMin	uint	The minimum amount tokens to receive.
path (address[])	address	An array of token addresses. path.length must be >= 2. Pools for each consecutive pair of addresses must exist and have liquidity.
to	address	Address of recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

swapTokensForExactETH

function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
  external
  returns (uint[] memory amounts);

Receive an exact amount of EOS for as few input tokens as possible.

Name	Type
amountOut	uint	Payable amount of input tokens.
amountInMax	uint	The minimum amount tokens to input.
path (address[])	address	An array of token addresses. path.length must be >= 2. Pools for each consecutive pair of addresses must exist and have liquidity.
to	address	Address of recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

swapTokensForExactTokens

function swapTokensForExactTokens(
  uint amountOut,
  uint amountInMax,
  address[] calldata path,
  address to,
  uint deadline
) external returns (uint[] memory amounts);

Receive an exact amount of output tokens for as few input tokens as possible.

Name	Type
amountOut	uint	Payable amount of input tokens.
amountInMax	uint	The maximum amount tokens to input.
path (address[])	address	An array of token addresses. path.length must be >= 2. Pools for each consecutive pair of addresses must exist and have liquidity.
to	address	Address of recipient.
deadline	uint	Unix timestamp deadline by which the transaction must confirm.

Interface

import './interfaces/INoahRouter02.sol';

pragma solidity >=0.6.2;

interface INoahRouter01 {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
        external
        returns (
            uint256 amountA,
            uint256 amountB,
            uint256 liquidity
        );

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );

    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountA, uint256 amountB);

    function removeLiquidityETH(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountToken, uint256 amountETH);

    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountA, uint256 amountB);

    function removeLiquidityETHWithPermit(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountToken, uint256 amountETH);

    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapTokensForExactTokens(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactETHForTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function swapTokensForExactETH(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactTokensForETH(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapETHForExactTokens(
        uint256 amountOut,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function quote(
        uint256 amountA,
        uint256 reserveA,
        uint256 reserveB
    ) external pure returns (uint256 amountB);

    function getAmountOut(
        uint256 feeRate,
        uint256 amountIn,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountOut);

    function getAmountIn(
        uint256 feeRate,
        uint256 amountOut,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountIn);

    function getAmountsOut(uint256 amountIn, address[] calldata path) external view returns (uint256[] memory amounts);

    function getAmountsIn(uint256 amountOut, address[] calldata path) external view returns (uint256[] memory amounts);
}


pragma solidity >=0.6.2;

import "./INoahRouter01.sol";

interface INoahRouter02 is INoahRouter01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountETH);

    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable;

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}