N00b21337Example of implementation of EIP 4906 metadata updates
EIP 4096 has an interesting method of updating your metadata with events, more details here. https://eips.ethereum.org/EIPS/eip-4906 So lets see how to implement it with an example. First you need to create a file with interface that has this code in itpragma solidity ^0.8.0; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; /// @title EIP-721 Metadata Update Extension interface IERC4906 is IERC165 { /// @dev This event emits when the metadata of a token is changed. /// Third-...
N00b21337How to get Uniswap V3 liquidity pool address for whitelisting?
Similar to what we did for Uniswap V2 on how to find address of smart contract pool that will be generated we can do the same for V3 https://mirror.xyz/n00b21337.eth/0QkNt3NnLnnUSy4jFmWnaeRr_38Z3wlYKKf1O6URG3c Depending on what chain we are at, you can find all the addresses of Factories here https://github.com/Uniswap/sdk-core/blob/5365ae4cd021ab53b94b0879ec6ceb6ad3ebdce9/src/addresses.ts#L135 Aim for the v3CoreFactoryAddress values.**So there are a few methods to do that, one could be to us...
N00b21337Clear browser storage when developing
Different wallet scripts usually use window.localStorage for saving data for reuse and determination of what is the status of wallet connect, sometimes this could be awire and you need to clear it, you could delete all in browser like cookies, stored data and all the rest but you can also call first this in consolewindow.localStorage to check what is saved and then you can delete it all withlocalStorage.clear(); orlocalStorage.removeItem("name of localStorage variable you want to remov...
R4Nd0m k0lLEC7I0N 0F U5EFul PHindiN92 0N mY j0URney PhR0m n00b 2 1337. rAmBL1N92 aBoUt 5Ol1d17y, rE4C7, nf7, dEfi, WE83
I wanted to define interface usage once and then run it in few functions, not define it in each one, so to do that I have first define MainContract as Main and then through constructor I assign it a address of this other contract and later I can just use this other contract methods as in checkOther function
interface MainContract {
function checkDisplay() external view returns (string memory);
}
contract second {
MainContract Main;
constructor(address _interface) {
Main = MainContract(_interface);
}
function checkOther() public view returns (string memory) {
return Main.checkDisplay();
}
}
I wanted to define interface usage once and then run it in few functions, not define it in each one, so to do that I have first define MainContract as Main and then through constructor I assign it a address of this other contract and later I can just use this other contract methods as in checkOther function
interface MainContract {
function checkDisplay() external view returns (string memory);
}
contract second {
MainContract Main;
constructor(address _interface) {
Main = MainContract(_interface);
}
function checkOther() public view returns (string memory) {
return Main.checkDisplay();
}
}
Example of implementation of EIP 4906 metadata updates
EIP 4096 has an interesting method of updating your metadata with events, more details here. https://eips.ethereum.org/EIPS/eip-4906 So lets see how to implement it with an example. First you need to create a file with interface that has this code in itpragma solidity ^0.8.0; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; /// @title EIP-721 Metadata Update Extension interface IERC4906 is IERC165 { /// @dev This event emits when the metadata of a token is changed. /// Third-...
N00b21337How to get Uniswap V3 liquidity pool address for whitelisting?
Similar to what we did for Uniswap V2 on how to find address of smart contract pool that will be generated we can do the same for V3 https://mirror.xyz/n00b21337.eth/0QkNt3NnLnnUSy4jFmWnaeRr_38Z3wlYKKf1O6URG3c Depending on what chain we are at, you can find all the addresses of Factories here https://github.com/Uniswap/sdk-core/blob/5365ae4cd021ab53b94b0879ec6ceb6ad3ebdce9/src/addresses.ts#L135 Aim for the v3CoreFactoryAddress values.**So there are a few methods to do that, one could be to us...
N00b21337Clear browser storage when developing
Different wallet scripts usually use window.localStorage for saving data for reuse and determination of what is the status of wallet connect, sometimes this could be awire and you need to clear it, you could delete all in browser like cookies, stored data and all the rest but you can also call first this in consolewindow.localStorage to check what is saved and then you can delete it all withlocalStorage.clear(); orlocalStorage.removeItem("name of localStorage variable you want to remov...
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