Stove Coin

---

This guide has been made only for Mac OS X.

Preliminaries

• Install Node.js and global package

brew install node
npm install -g solc nodemon

• Install MongoDB

brew install mongodb

• Install Ethereum

brew install geth

• Make aliases

echo "127.0.0.1 mongodb ethereum" >> /etc/hosts
export DATA_DIR=$HOME/chain

Setting up Ethereum for private

• Fistly, you should add accounts. You remark addresses of generated accounts ant they will be facilitated to write genesis file in next step.
  • The first account will be rewared from ethereum where mining; the account is miner.

geth account new

• Write genesis file for initial block setting.
  • {account address} has to be replaced with the actual addresses resulted in the above step.
  • The key contents of belows is alloc making balances.

{
    "config":{ },
    "nonce": "0x0000000000000042",
	"timestamp": "0x00",
    "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "extraData": "0x00",
	"gasLimit": "0x8000000",
	"difficulty": "0x400",
    "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "coinbase": "0x3333333333333333333333333333333333333333",
	"alloc": {
		"{account address}" :
		{
			"balance" : "99999999999999"
		}
	}
}

• Apply the file into the initial block before starting the Ethereum.

geth init custom_genesis.json

• Starting Ethereum

geth --identity "Stovecoin" --rpc --rpcport "8545" -- rpccorsdomain "*" --datadir "$DATA_DIR" --port "30303" --nodiscover --rpcapi "db,eth,net,personal,web3" -- rpcaddr "127.0.0.1" --networkid 1999

D-App configuration

Starting D-App

• D-App has been written by Node.js. Therefore, you can run and manage with npm. For starting the D-App, you should install all of related package, firstly. Next, you can execute run.sh script.
  • This script is based on nodemon, which monitor Node.js sourcecodes and restarting the D-App when changing one of them.
  • Instead of nodemon, you can simply run it with node bin/www

cd dapps/webapp
npm install
./run.sh

• Open localhost:3000 in the web browser.

Mapping Ethereum account to D-App user

• Sign up a user on the D-App.
• Connect into MongoDB and modify user's document.

{
  "_id" : ObjectId("59a7662b11697a439b10be17"),
  "username" : "user1",
  "password" : "03ac674216f3e15c761ee1a5e255f067953623c8b388b4459e13f978d7c846f4",
  "account" : "{account address}",
  "stovecoin" : 181998,
  "__v" : 0
}

Queations

Reset all of blocks

• For reseting the blocks, you could eliminate the chain data of Ethereum and then re-applying the genesis file.

rm -rf $DATA_DIR/geth/chaindata $DATA_DIR/geth/lightchaindata
geth --identity "Stovecoin" --rpc --rpcport "8545" --rpccorsdomain "*" --datadir "$DATA_DIR" --port "30303" --nodiscover --rpcapi "db,eth,net,web3" --networkid 1999 init custom_genesis.json