📜 Campaign Contract

A new way of funding a project or venture by raising small amounts of money from a large number of people via ethereum blockchain technology without any middleman to function or to manage a user’s information.

Screen-shot

Home Page

Campaigns Dashboard

Campaigns Request

CampaignFactory

Variables

variable	data types	desc
deployedCampaigns	address[]	addresses of all the deployed contract

Function

name	desc
createCampaign	create a new campaign contract
getDeployedCampaigns	return addresses of all the deployed contract

Campaign

Variables

variable	data types	desc
manager	address	address of the person who is managing this compaign
minimumContribution	unint	Minimum donation required to be considered a contributor or 'approver'
approvers	address[]	List of addresses for every person who has donated money
requests	Request[]	List of requests that the manager has created.

Functions

name	desc
Campaign	constructor function that sets the minimumContribution and the owner
contribute	called when someone wants to donate money to the compaign and become an 'approver'
createRequest	called by the manager to create a new 'spending request'
approveRequest	called by each contributor to approve a spending request
finalizeRequest	After a request has gotten enough approvals, the manager can call this to get money sent to the vendor
getSummary()	function to retrieving Campaign balance, minimumContribution , no of requests , no of Contributors and manager address
getRequestsCount()	function returning no of requests

Request Struc

Name	Type	Purpose
description	string	Describes why the request is being created
value	uint	Amount of money that the manager wants to send to the vendor
recipient	address	Address that the money will be sent to
complete	bool	True if the request has already been processed (money sent)

Prerequisite

1. Install Metamask as Google Chrome Extension and Create an account.

2. Request Ether by sharing your ethereum address in social media
   (https://faucet.rinkeby.io/)

3. Get 0.01 ether free by giving the ethereum address
   (http://rinkeby-faucet.com/)

4. Create an account in https://infura.io

5. Create .env file in Ethereum directory and add these line to it.

   mnemonic = 'Your mnemonic code'
   link = 'Your infura end point link '

6. Deploy Contract by going into Ethereum Directory and run.

   node deploy.js

   Copy the contract deploy address and replace it in factory.js file.

7. Replace your "infura end point link" in web3.js file

Dependencies Used

Name	Version	Description
solc	0.4.26	Programming language to write smart contracts
ganache-cli	6.5.1	Local Ethereum Test Network
mocha	6.2.0	JavaScript test framework
truffle-hdwallet-provider	1.0.16	The Truffle HDWallet provider is a convenient and easy to configure network connection to ethereum through infura.io
web3	1.0.0-beta.55	Ethereum JavaScript API which connects to the Generic JSON RPC spec.
dotenv	8.0.0	Loads environment variables from a .env file into process.env
fs-extra	8.1.0	file system methods that aren't included in the native fs
next	9.0.3	JavaScript framework to build server-side rendering and static web application using React
react	16.9.0	JavaScript library for creating user interfaces
react-dom	16.9.0	DOM specific methods that can be used on React application
semantic-ui-react	0.87.3	react component kit provides pre define react component
semantic-ui-css	2.4.1	react component kit provides theme to react component as CSS
next-routes	1.4.2	Dynamic Routes for Next.js

Steps

• To install dependencies

npm install

• To Compile the Contract

node compile.js

• To test the Contract

npm run test

• To deploy the Contract

node deploy.js

• To run the application

npm run dev

UI Routing

Path	Description
/	List of Campaigns
/campaigns/new	Form to make a campaign
/campaigns/0x8147	Campaign details for campaign at address 0x8147
/campaigns/0x8147/requests	Requests for campaign at address 0x8147
/campaigns/0x8147/requests/new	Form to create a request for campaign at address 0x8147