laurogripa / voting-dapp

Simple voting dapp built with Truffle and deployed on Ethereum's Rinkeby testnet.

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