ArpitxGit

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract AvatarCollection {
    struct Avatar {
        uint id;
        string name;
        string imageURI;
        address owner;
    }

ArpitxGit

The goal is to

• Continuously monitor the impermanent loss incurred for a position in Uniswap V3
• And if there is a loss, we need to exit the position
• It has to be 100% automated (the end user should not be expected to be online signing the transaction when the liquidity is pulled out)

Monitoring a position

We can use the Uniswap V3's subgraph to know a position's details like tokens, price at the time of providing liquidity, etc. We will also know the current tick in the pool.

ArpitxGit

• MERKLE TREE:

Merkle trees are a fundamental data structure in distributed systems and blockchain technology. They are used to efficiently and securely verify the integrity of data, and they have become a key building block for many decentralized applications.
In the context of solidity, a merkle tree is a tree-like data structure that is used to store and verify the integrity of data in a smart contract. Solidity is a programming language for writing smart contracts on the Ethereum blockchain, and it provides support for implementing and using merkle trees.
A merkle tree is constructed by taking a set of data items, called leaves, and hashing them to produce a set of intermediate nodes. The intermediate nodes are then hashed together to produce another set of nodes, and this process is repeated until a single root node is produced. The root node is called the merkle root, and it is a unique identifier for the entire tree.

Merkle trees have several benefits and advantages, which make them a valua

ArpitxGit

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "./IStarknetCore.sol";

contract Gateway {
    uint256 public endpointGateway;
    IStarknetCore public starknetCore;
    uint256 constant ENDPOINT_GATEWAY_SELECTOR =

ArpitxGit

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

/*
Contract to Delay Transaction
"for security puposes or taking fail safe measuers
as users trust contract more than anything."

1. You are going to broadcast a transaction
    that you are going to execute,

ArpitxGit

// SPDX-License-Identifier: CC0-1.0
pragma solidity ^0.8.6;

/*
Compiliing reference implmentation of EIP4973
By accumulating all mentioned interfaces
And solving few errors
*/
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import {IERC721Metadata} from "./IERC721Metadata.sol";

ArpitxGit

//SPDX-License-Identifier: MIT

pragma solidity ^0.8.15;

//contract for splitting payments
contract PaymentSplitter {
    //array for holding addresses, public, payable
    address payable [] public recipients;

    //lastly adding event for use in application

ArpitxGit

REMIX EXAMPLE PROJECT

Remix example project is present when Remix loads very first time or there are no files existing in the File Explorer. 
It contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.

SCRIPTS