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.
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 |
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) |
-
Install Metamask as Google Chrome Extension and Create an account.
-
Request Ether by sharing your ethereum address in social media
(https://faucet.rinkeby.io/) -
Get 0.01 ether free by giving the ethereum address
(http://rinkeby-faucet.com/) -
Create an account in https://infura.io
-
Create .env file in Ethereum directory and add these line to it.
mnemonic = 'Your mnemonic code'
link = 'Your infura end point link ' -
Deploy Contract by going into Ethereum Directory and run.
node deploy.js
Copy the contract deploy address and replace it in factory.js file.
-
Replace your "infura end point link" in web3.js file
| 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 |
- 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
| 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 |