voting-dapp

Dependencies

geth 1.7.3-stable
Solidity v0.4.19
npm 5.6.0
node v9.4.0
Truffle v4.0.6

Setup

Ubuntu

First, install the latest geth (1.7.3) to your machine.

For Ubuntu, you can follow the instructions on the official wiki.

sudo apt-get install software-properties-common
sudo add-apt-repository -y ppa:ethereum/ethereum
sudo apt-get update
sudo apt-get install ethereum

If you just need to upgrade geth from a previous version, you can just run:

sudo apt install geth

MacOS

If you're downloading this to your Mac, you'll need to download the packages manually to get the latest (1.7.3) release. https://geth.ethereum.org/downloads/

Extract it and copy the geth binary to somewhere in your path.

# ppham @ Pauls-Air-2 in ~/Downloads [21:46:25]
$ tar zxvf geth-darwin-amd64-1.7.3-4bb3c89d.tar.gz
x geth-darwin-amd64-1.7.3-4bb3c89d/
x geth-darwin-amd64-1.7.3-4bb3c89d/COPYING
x geth-darwin-amd64-1.7.3-4bb3c89d/geth

# ppham @ Pauls-Air-2 in ~/Downloads [21:46:39]
$ sudo mv geth-darwin-amd64-1.7.3-4bb3c89d/geth /usr/local/bin/geth

Running your own node on Rinkeby testnet

The contract run in this application was deployed on Rinkeby testnet.

If you want ro run a full node, you can just run geth passing --rinkeby as an option:

geth --rinkeby

To run a light node you can use the syncmode option:

geth --rinkeby --syncmode "light"

When the sync is done, you need to specify that you want to use rpc and specify which APIs will have permission:

geth --rinkeby --rpc --rpcapi="db,eth,net,web3,personal"

or (for the light mode):

geth --rinkeby --syncmode "light" --rpc --rpcapi="db,eth,net,web3,personal"

Then you can attach geth.ipc to the running node in order to make queries to the blockchain:

geth attach ~/.ethereum/rinkeby/geth.ipc

or:

geth attach http://localhost:8545

Truffle Framework

This application is built with Truffle framework

npm install -g truffle