KaseiCoin - Martian Token Crowdsale

In this project, I created a fungible token that is ERC-20 compliant and that is minted by using a Crowdsale contract from the OpenZeppelin Solidity library.

The crowdsale contract manages the entire crowdsale process, allowing users to send ether to the contract and in return receive KSC, or KaseiCoin tokens. The contract will mint the tokens automatically and distribute them to buyers in one transaction.

Remix was used to write, compile, and deploy this test project. (https://remix-project.org/)

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Code

KaseiCoin.sol

pragma solidity ^0.5.5;

//  Import the following contracts from the OpenZeppelin library:
//    * `ERC20`
//    * `ERC20Detailed`
//    * `ERC20Mintable`
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v2.5.0/contracts/token/ERC20/ERC20.sol";
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v2.5.0/contracts/token/ERC20/ERC20Detailed.sol";
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v2.5.0/contracts/token/ERC20/ERC20Mintable.sol";

contract KaseiCoin is ERC20, ERC20Detailed, ERC20Mintable {
    constructor(
        string memory name,
        string memory symbol,
        uint initial_supply
    )
        ERC20Detailed(name, symbol, 18)
        public
}

KaseiCoinCrowdsale.sol

pragma solidity ^0.5.5;

import "./KaseiCoin.sol";
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v2.5.0/contracts/crowdsale/Crowdsale.sol";
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v2.5.0/contracts/crowdsale/emission/MintedCrowdsale.sol";

contract KaseiCoinCrowdsale is Crowdsale, MintedCrowdsale {
    constructor(uint rate, address payable wallet, KaseiCoin token) Crowdsale(rate, wallet, token) public {
        // constructor can stay empty
    }
}

contract KaseiCoinCrowdsaleDeployer {
    address public kasei_token_address;
    address public kasei_crowdsale_address;

    constructor(string memory name, string memory symbol, address payable wallet) public {
        KaseiCoin token = new KaseiCoin(name, symbol, 0);
        kasei_token_address = address(token);

        KaseiCoinCrowdsale kasei_crowdsale = new KaseiCoinCrowdsale(1, wallet, token);
        kasei_crowdsale_address = address(kasei_crowdsale);

        // Set the `KaseiCoinCrowdsale` contract as a minter
        token.addMinter(kasei_crowdsale_address);
        
        // Have the `KaseiCoinCrowdsaleDeployer` renounce its minter role.
        token.renounceMinter();
    }
}

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Evaluation Evidence

1. KaseiCoin Token Contract

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2. KaseiCoin Crowdsale Contract

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3. Deploy the KaseiCoin Deployer and KaseiCoin Crowdsale contract

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4. Buy Tokens

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Project by:

email: stipptracie@gmail.com | GitHub | LinkedIn

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