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addLiquidity in process

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This commit is contained in:
Samyak Jain 2019-04-06 03:14:18 +05:30
parent fc6111de62
commit 672952a858
1 changed files with 25 additions and 4 deletions
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29
contracts/ProxyLogics/InstaUniswapPool.sol
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@ -129,8 +129,8 @@ contract Helper {
* @dev setting allowance to kyber for the "user proxy" if required
* @param token is the token address
*/
function setApproval(address token) internal returns (uint) {
IERC20(token).approve(getAddressUniFactory(), 2**255);
function setApproval(address token, address exchangeAdd) internal returns (uint) {
IERC20(token).approve(getExchangeAddress(token), 2**255);
}
/**
@ -138,11 +138,32 @@ contract Helper {
* @param token is the token
*/
function manageApproval(address token, uint srcAmt) internal returns (uint) {
uint tokenAllowance = IERC20(token).allowance(address(this), getAddressUniFactory());
address exchangeAdd = getExchangeAddress(token);
uint tokenAllowance = IERC20(token).allowance(address(this), exchangeAdd);
if (srcAmt > tokenAllowance) {
setApproval(token);
setApproval(token, exchangeAdd);
}
}
}
contract InstaUniswapPool is Helper {
function addLiquidity(address token, uint maxDepositedTokens) public payable returns (uint256) {
address uniswapExchangeAdd = getExchangeAddress(token);
UniswapPool uniswapExchange = UniswapPool(uniswapExchangeAdd);
uint ethQty = msg.value;
(uint exchangeEthBal, uint exchangeTokenBal) = getBal(token, uniswapExchangeAdd);
uint tokenToDeposit = ethQty*(exchangeTokenBal/exchangeEthBal);
require(tokenToDeposit < maxDepositedTokens, "Token to deposit is greater than Max token to Deposit");
manageApproval(token, tokenToDeposit);
uint tokensMinted = uniswapExchange.addLiquidity.value(ethQty)(
uint(0),
tokenToDeposit,
uint(1899063809) // 6th March 2030 GMT // no logic
);
}
}