YKTS Ethereum DApp and Smart Contract(s)

Contents

This repository contains sample YKTS DApp and smart contracts developed for Ethereum platform. All smart contracts are deployed on Ethereum's Rinkeby testnet. Metamask browser extension is used for testing and development
Please check out the *.js files in app directory.

Simple Flow

Setting Up

Please refer to the following step-by-step guides to setup and start development with Truffle

• How to setup Metamask for browsers
• How to setup Truffle for macOS and Linux
• How to build Geth on macOS and Linux

Development and Testing

Basic commands for development and testing are as follows

# everytime you had a fresh checkout, get dependencies via
$ npm install

# compile smart contracts
$ truffle compile

# test smart contracts
$ truffle test

# create an .env file to store wallet seed and infura api keys in project root dir
$ cat .env
MNEMONIC=<wallet (Metamask) seed phrases>
INFURA_PROJECT_ID==<infura project id>

# deploy smart contracts on Rinkeby (used for testing!)
$ truffle migrate --network rinkeby

# deploy smart contracts on various networks
$ truffle migrate --network localhost
$ truffle migrate --network mainnet
$ truffle migrate --network ropsten

# serve static content with lite-server at localhost:3000
$ npm run dev

A sample migration will look as follows, current smart contract (see Etherscan) cost is 0.0518081 ETH

$ truffle migrate --network rinkeby

Compiling your contracts...
===========================
> Everything is up to date, there is nothing to compile.



Migrations dry-run (simulation)
===============================
> Network name:    'rinkeby-fork'
> Network id:      4
> Block gas limit: 10004062 (0x98a65e)


1_initial_migration.js
======================

   Deploying 'YKTS'
   ----------------
   > block number:        6768719
   > block timestamp:     1593686265
   > account:             0x6119AB391d0A2870D4e97E83a8aFe7FbFb558400
   > balance:             9.153492385
   > gas used:            2515405 (0x2661cd)
   > gas price:           2 gwei
   > value sent:          0 ETH
   > total cost:          0.00503081 ETH

   -------------------------------------
   > Total cost:          0.00503081 ETH


Summary
=======
> Total deployments:   1
> Final cost:          0.00503081 ETH





Starting migrations...
======================
> Network name:    'rinkeby'
> Network id:      4
> Block gas limit: 10000000 (0x989680)


1_initial_migration.js
======================

   Deploying 'YKTS'
   ----------------
   > transaction hash:    0xaf270175c0b0027a26d2ffeb3717fcc17c5c98515aae37e73a26e8cf27acbe0f
   > Blocks: 0            Seconds: 9
   > contract address:    0x2553Cf82F711c808278EA24F39A6678B53f593af
   > block number:        6768721
   > block timestamp:     1593686289
   > account:             0x6119AB391d0A2870D4e97E83a8aFe7FbFb558400
   > balance:             9.106715095
   > gas used:            2590405 (0x2786c5)
   > gas price:           20 gwei
   > value sent:          0 ETH
   > total cost:          0.0518081 ETH

   > Saving artifacts
   -------------------------------------
   > Total cost:           0.0518081 ETH


Summary
=======
> Total deployments:   1
> Final cost:          0.0518081 ETH

Test accounts are as follows:

Account 1: 0x6119AB391d0A2870D4e97E83a8aFe7FbFb558400 (admin)
Account 2: 0x5686D0cf1cE96fcA54D4d940feCC244f1B5B8D45 (notary)
Account 3: 0x0061496184B3Ac4BF935247Dd52Ab96b3B99f613 (entity)
Account 4: 0xdc8f590c97cA11afcc55155D9FB9BA761F0d791f (broker1)
Account 5: 0x1432d11664ea7579BF73B31A92d732eFb003751d (broker2)