CurioInvest contracts

Smart-contracts of CurioInvest project.

With using Truffle framework. Powered by Ethereum.

CarToken1

Token represents shares of Ferrari F12tdf car. Number of shares equal car price in USD.

• ERC20 interface
• 18 decimals
• 1100000 total supply

CurioGarageNFT

Represents unique car-tokens of Curio garage.

• ERC721 interface
• 1 NFT token represents 1 ERC20 car-token (include address and car name as token URI)
• Owner of contract can mint new tokens, transfer tokens to new car owner

CarTokenCrowdsale

Allows to purchase CarToken1 for accepted stable tokens (e.g. TrueUSD, or DAI).

• Purchase tokens for others tokens
• Buy out all tokens (even those that were bought by other investors) with the payment of investors rewards
• Refund if the goal was not reached
• Post-delivery logic
• Timed logic
• Whitelisted logic

Usage

Requirements

• Linux (for run bash scripts)
• Node v10.14.1, NPM v6.9.0

Install

npm i

Compile contracts

npm run compile

Run tests

Using local truffle develop network.

npx truffle develop

truffle(develop)> test

Deploy

1. Configure network parameters

Create file .env in root project directory. Fill out environment variables as in .env.example.

Parameters:

1. INFURA_PROJECT_ID - Project ID for Infura provider;
2. MAINNET_MNEMONIC - Mnemonic phrase of deployer wallets;
3. MAINNET_GAS_LIMIT - Gas limit value;
4. MAINNET_GAS_PRICE - Gas price value;
5. ROPSTEN_MNEMONIC - Mnemonic phrase of deployer wallets (for Ropsten network);
6. ROPSTEN_GAS_LIMIT - Gas limit value (for Ropsten network);
7. ROPSTEN_GAS_PRICE - Gas price value (for Ropsten network);

2. Configure crowdsale parameters (for crowdsale contract deploying)

Create file <netName>.json in config/params directory. Fill out the config as in config/params/example.json.

netNames:

[
  "development",
  "ropsten",
  "mainnet"
]

Parameters:

1. openingTime - Crowdsale opening time;
2. closingTime - Crowdsale closing time;
3. wallet - Address where collected funds will be forwarded to;
4. acceptedToken - Address of the accepted token (stable token);
5. rate - Number of token units a buyer gets per accepted token's unit;
6. goal - Raise goal in accepted token units (soft and hard cap);
7. rewardsPercent - Percent of investor's rewards after all tokens purchased (0-10,000).

3. Compile contracts

npx truffle compile

4. Deploy contracts

npx truffle migrate --network <netName> --reset

netNames:

[
  "development",
  "ropsten",
  "mainnet"
]