/KaseiCoin

Mars colony cryptocurrency

Primary LanguageSolidity

Application

Martian Token Crowdsale

KAI is a fungible token that is ERC-20 compliant and it will be minted by using a Crowdsale contract from the OpenZeppelin Solidity library.

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

Goal

The steps for this Challenge are divided into the following sections:

  1. Create the KaseiCoin Token Contract

  2. Create the KaseiCoin Crowdsale Contract

  3. Create the KaseiCoin Deployer Contract

  4. Deploy the Crowdsale to a Local Blockchain

  5. Extend the Crowdsale Contract by Using OpenZeppelin

Technology

  • Remix IDE for smart contract creation
  • MetaMask + Ganache used as local blockchain

Evaluation Evidence

Compile KaseiCoin contract Results

Compile CrowdSale and Deployer contracts Results Results

Deployment of Deployer (Input name, symbol and wallet address deatils) Results

Link deployer to KaseiCoinCrowdSale contract using the address for CrowdSale from deployer Results

Link deployer to KaseiCoin contract using the address for token from deployer Results

Buy KaseiCoins worth 3 ETH Results

Buy KaseiCoins worth 1 ETH Results

Check balance for recent transaction and address Results

Following are all the transactions (seen in ganache) Results

Check total supply Results

Optional Exercise:

Added inheritance to CrowdSale contract of Capped, Timed and Refundable-Post-Delivery Crowdsale. Deployed new contracts (with cap of 10 wei). Results And tested for purcahse of 12 tokens. Result is as follows: Results

Installation Guide

Compile the contracts in Remix

Open Ganache, connect it to MetaMask

In Remix - deployment - Environment section, choose 'Injected Provider MetaMask'. Make the connection with MetaMask

Select the address that you would like to use for deployment. Enter input paramters (Coin name, symbol and wallet address) and hit the transact/deploy button.

Deployer contract will provide Crowdsale address and token address. Use them to link to Crowdsale contract and Token contract.

Usage

In remix - deployment section, user can go to KaseiCoinCrowdSale contract and invoke buyToken function (input address for which you would like to purchase tokens and also input number of wei/ether you would like to transact with).

In same section, user can go to KaseiCoin contract to check balance for the user and total supply

Contributors

Main author is : Pravin Patil. His linkedin profile is Profile

License

Open