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*.sol linguist-language=Solidity |
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# reciproka |
|||
Decentralized mutual credit system based on Ethereum smart contracts. |
|||
|
|||
**For the moment this is an implementation of a Proof of Concept.** |
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|
|||
## Components |
|||
- Smart contracts |
|||
- Ethereum Solidity |
|||
- Frontend wallet app |
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- Reactjs |
|||
- Reputation Authority |
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- Go lang |
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|
|||
## Documentation |
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|
|||
Each user connects to `reciproka` throught the frontend wallet app. Once the app is opened, it creates a new ethereum private key (if the user already have one, loads it). |
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|
|||
|
|||
### Transaction action: |
|||
- Step 0: Initial scenario |
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- Balances |
|||
- u1: 0 |
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- u2: 0 |
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- Step 1: u1 sends 10 credits to u2 |
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- Balances |
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- u1: -10 |
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- u2: 10 |
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|
|||
|
|||
### Account |
|||
Account data structure: |
|||
```solidity |
|||
struct Account { |
|||
address ID; |
|||
int64 Balance; |
|||
bytes32[] History; |
|||
} |
|||
``` |
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|
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|
|||
|
|||
### Reputation Authority |
|||
Handles a public list of accounts that have been verified, in order to give some kind of trusted certification to an user's account. |
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Can be runned by a collective, so for example, a group of people that work together in a project, can run a Reputation Authority, that will 'validate' trusted user's accounts. |
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pragma solidity ^0.4.23; |
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|
|||
contract Accounts { |
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|
|||
mapping(address => Account) accounts; |
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|
|||
struct Account { |
|||
address ID; |
|||
int64 Balance; |
|||
bytes32[] History; |
|||
} |
|||
|
|||
event BalanceUpdated(address sender, address receiver, int64 value); |
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|
|||
function updateBalance(address _receiver, int64 _value) public { |
|||
// get Account of _sender |
|||
// check if balance of _sender is under the limit |
|||
// substract _value from _sender account |
|||
accounts[msg.sender].Balance = accounts[msg.sender].Balance - _value; |
|||
// add _value to _receiver account |
|||
accounts[_receiver].Balance = accounts[_receiver].Balance + _value; |
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|
|||
// add transaction to history of sender and receiver accounts |
|||
|
|||
// emit BalanceUpdated |
|||
emit BalanceUpdated(msg.sender, _receiver, _value); |
|||
|
|||
} |
|||
function getBalance(address _address) public view returns (int64) { |
|||
return accounts[_address].Balance; |
|||
} |
|||
} |
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|||
# See https://help.github.com/ignore-files/ for more about ignoring files. |
|||
|
|||
# dependencies |
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/node_modules |
|||
|
|||
# testing |
|||
/coverage |
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|
|||
# production |
|||
/build |
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|
|||
# misc |
|||
.DS_Store |
|||
.env.local |
|||
.env.development.local |
|||
.env.test.local |
|||
.env.production.local |
|||
|
|||
npm-debug.log* |
|||
yarn-debug.log* |
|||
yarn-error.log* |
@ -0,0 +1,20 @@ |
|||
{ |
|||
"name": "wallet", |
|||
"version": "0.1.0", |
|||
"private": true, |
|||
"dependencies": { |
|||
"oce-components": "git+https://github.com/opencooperativeecosystem/kit.git", |
|||
"react": "^16.4.2", |
|||
"react-dom": "^16.4.2", |
|||
"react-router": "^4.2.0", |
|||
"react-router-dom": "^4.2.2", |
|||
"react-scripts": "1.1.4", |
|||
"web3": "^1.0.0-beta.35" |
|||
}, |
|||
"scripts": { |
|||
"start": "react-scripts start", |
|||
"build": "react-scripts build", |
|||
"test": "react-scripts test --env=jsdom", |
|||
"eject": "react-scripts eject" |
|||
} |
|||
} |
@ -0,0 +1,55 @@ |
|||
<!DOCTYPE html> |
|||
<html lang="en"> |
|||
<head> |
|||
<meta charset="utf-8"> |
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<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> |
|||
<meta name="theme-color" content="#000000"> |
|||
<!-- |
|||
manifest.json provides metadata used when your web app is added to the |
|||
homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/ |
|||
--> |
|||
<link rel="manifest" href="%PUBLIC_URL%/manifest.json"> |
|||
<link rel="shortcut icon" href="%PUBLIC_URL%/app-icon.png"> |
|||
<!-- |
|||
Notice the use of %PUBLIC_URL% in the tags above. |
|||
It will be replaced with the URL of the `public` folder during the build. |
|||
Only files inside the `public` folder can be referenced from the HTML. |
|||
|
|||
Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will |
|||
work correctly both with client-side routing and a non-root public URL. |
|||
Learn how to configure a non-root public URL by running `npm run build`. |
|||
--> |
|||
|
|||
<!-- Bootstrap CSS --> |
|||
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" integrity="sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4" crossorigin="anonymous"> |
|||
|
|||
<!-- font awesome --> |
|||
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.10/css/all.css" integrity="sha384-+d0P83n9kaQMCwj8F4RJB66tzIwOKmrdb46+porD/OvrJ+37WqIM7UoBtwHO6Nlg" crossorigin="anonymous"> |
|||
|
|||
|
|||
<title>reciproka wallet</title> |
|||
</head> |
|||
<body> |
|||
<noscript> |
|||
You need to enable JavaScript to run this app. |
|||
</noscript> |
|||
<div id="root"></div> |
|||
<!-- |
|||
This HTML file is a template. |
|||
If you open it directly in the browser, you will see an empty page. |
|||
|
|||
You can add webfonts, meta tags, or analytics to this file. |
|||
The build step will place the bundled scripts into the <body> tag. |
|||
|
|||
To begin the development, run `npm start` or `yarn start`. |
|||
To create a production bundle, use `npm run build` or `yarn build`. |
|||
--> |
|||
|
|||
<!-- Optional JavaScript --> |
|||
<!-- jQuery first, then Popper.js, then Bootstrap JS --> |
|||
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script> |
|||
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js" integrity="sha384-cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ" crossorigin="anonymous"></script> |
|||
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js" integrity="sha384-uefMccjFJAIv6A+rW+L4AHf99KvxDjWSu1z9VI8SKNVmz4sk7buKt/6v9KI65qnm" crossorigin="anonymous"></script> |
|||
|
|||
</body> |
|||
</html> |
@ -0,0 +1,15 @@ |
|||
{ |
|||
"short_name": "React App", |
|||
"name": "Create React App Sample", |
|||
"icons": [ |
|||
{ |
|||
"src": "favicon.ico", |
|||
"sizes": "64x64 32x32 24x24 16x16", |
|||
"type": "image/x-icon" |
|||
} |
|||
], |
|||
"start_url": "./index.html", |
|||
"display": "standalone", |
|||
"theme_color": "#000000", |
|||
"background_color": "#ffffff" |
|||
} |
@ -0,0 +1,28 @@ |
|||
.App { |
|||
text-align: center; |
|||
} |
|||
|
|||
.App-logo { |
|||
animation: App-logo-spin infinite 20s linear; |
|||
height: 80px; |
|||
} |
|||
|
|||
.App-header { |
|||
background-color: #222; |
|||
height: 150px; |
|||
padding: 20px; |
|||
color: white; |
|||
} |
|||
|
|||
.App-title { |
|||
font-size: 1.5em; |
|||
} |
|||
|
|||
.App-intro { |
|||
font-size: large; |
|||
} |
|||
|
|||
@keyframes App-logo-spin { |
|||
from { transform: rotate(0deg); } |
|||
to { transform: rotate(360deg); } |
|||
} |
@ -0,0 +1,39 @@ |
|||
import React, { Component } from 'react'; |
|||
import {BrowserRouter, Route, Switch} from 'react-router-dom' |
|||
import './App.css'; |
|||
|
|||
import dashboardView from './views/dashboard/dashboard'; |
|||
|
|||
|
|||
import './eth/eth.js'; |
|||
|
|||
class App extends Component { |
|||
render() { |
|||
return ( |
|||
<BrowserRouter> |
|||
<div> |
|||
|
|||
<nav className="navbar navbar-light bg-light"> |
|||
{/* <span className="emptyHorizontal40"></span> */} |
|||
<a className="navbar-brand" href=""> |
|||
<img src={require('./img/app-icon.png')} width="30" height="30" className="d-inline-block align-top" alt=""/> |
|||
idWallet |
|||
</a> |
|||
</nav> |
|||
{/* <SideMenu/> */} |
|||
<main className="container"> |
|||
<br/> |
|||
<div id="view"> |
|||
<Switch> |
|||
<Route exact="exact" path="/" component={dashboardView}></Route> |
|||
</Switch> |
|||
</div> |
|||
</main> |
|||
|
|||
</div> |
|||
</BrowserRouter> |
|||
); |
|||
} |
|||
} |
|||
|
|||
export default App; |
@ -0,0 +1,9 @@ |
|||
import React from 'react'; |
|||
import ReactDOM from 'react-dom'; |
|||
import App from './App'; |
|||
|
|||
it('renders without crashing', () => { |
|||
const div = document.createElement('div'); |
|||
ReactDOM.render(<App />, div); |
|||
ReactDOM.unmountComponentAtNode(div); |
|||
}); |
@ -0,0 +1,14 @@ |
|||
import Web3 from 'web3'; |
|||
const web3 = new Web3("https://ropsten.infura.io/TFnR8BWJlqZOKxHHZNcs"); |
|||
|
|||
var account = web3.eth.accounts.create() |
|||
console.log("account", account) |
|||
web3.eth.getAccounts(function(error, result){ |
|||
console.log(result) |
|||
}) |
|||
|
|||
web3.eth.getBalance(account.address) |
|||
.then(balance => { |
|||
|
|||
console.log("balance", balance) |
|||
}) |
@ -0,0 +1,5 @@ |
|||
body { |
|||
margin: 0; |
|||
padding: 0; |
|||
font-family: sans-serif; |
|||
} |
@ -0,0 +1,8 @@ |
|||
import React from 'react'; |
|||
import ReactDOM from 'react-dom'; |
|||
import './index.css'; |
|||
import App from './App'; |
|||
import registerServiceWorker from './registerServiceWorker'; |
|||
|
|||
ReactDOM.render(<App />, document.getElementById('root')); |
|||
registerServiceWorker(); |
@ -0,0 +1,117 @@ |
|||
// In production, we register a service worker to serve assets from local cache.
|
|||
|
|||
// This lets the app load faster on subsequent visits in production, and gives
|
|||
// it offline capabilities. However, it also means that developers (and users)
|
|||
// will only see deployed updates on the "N+1" visit to a page, since previously
|
|||
// cached resources are updated in the background.
|
|||
|
|||
// To learn more about the benefits of this model, read https://goo.gl/KwvDNy.
|
|||
// This link also includes instructions on opting out of this behavior.
|
|||
|
|||
const isLocalhost = Boolean( |
|||
window.location.hostname === 'localhost' || |
|||
// [::1] is the IPv6 localhost address.
|
|||
window.location.hostname === '[::1]' || |
|||
// 127.0.0.1/8 is considered localhost for IPv4.
|
|||
window.location.hostname.match( |
|||
/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/ |
|||
) |
|||
); |
|||
|
|||
export default function register() { |
|||
if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) { |
|||
// The URL constructor is available in all browsers that support SW.
|
|||
const publicUrl = new URL(process.env.PUBLIC_URL, window.location); |
|||
if (publicUrl.origin !== window.location.origin) { |
|||
// Our service worker won't work if PUBLIC_URL is on a different origin
|
|||
// from what our page is served on. This might happen if a CDN is used to
|
|||
// serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374
|
|||
return; |
|||
} |
|||
|
|||
window.addEventListener('load', () => { |
|||
const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`; |
|||
|
|||
if (isLocalhost) { |
|||
// This is running on localhost. Lets check if a service worker still exists or not.
|
|||
checkValidServiceWorker(swUrl); |
|||
|
|||
// Add some additional logging to localhost, pointing developers to the
|
|||
// service worker/PWA documentation.
|
|||
navigator.serviceWorker.ready.then(() => { |
|||
console.log( |
|||
'This web app is being served cache-first by a service ' + |
|||
'worker. To learn more, visit https://goo.gl/SC7cgQ' |
|||
); |
|||
}); |
|||
} else { |
|||
// Is not local host. Just register service worker
|
|||
registerValidSW(swUrl); |
|||
} |
|||
}); |
|||
} |
|||
} |
|||
|
|||
function registerValidSW(swUrl) { |
|||
navigator.serviceWorker |
|||
.register(swUrl) |
|||
.then(registration => { |
|||
registration.onupdatefound = () => { |
|||
const installingWorker = registration.installing; |
|||
installingWorker.onstatechange = () => { |
|||
if (installingWorker.state === 'installed') { |
|||
if (navigator.serviceWorker.controller) { |
|||
// At this point, the old content will have been purged and
|
|||
// the fresh content will have been added to the cache.
|
|||
// It's the perfect time to display a "New content is
|
|||
// available; please refresh." message in your web app.
|
|||
console.log('New content is available; please refresh.'); |
|||
} else { |
|||
// At this point, everything has been precached.
|
|||
// It's the perfect time to display a
|
|||
// "Content is cached for offline use." message.
|
|||
console.log('Content is cached for offline use.'); |
|||
} |
|||
} |
|||
}; |
|||
}; |
|||
}) |
|||
.catch(error => { |
|||
console.error('Error during service worker registration:', error); |
|||
}); |
|||
} |
|||
|
|||
function checkValidServiceWorker(swUrl) { |
|||
// Check if the service worker can be found. If it can't reload the page.
|
|||
fetch(swUrl) |
|||
.then(response => { |
|||
// Ensure service worker exists, and that we really are getting a JS file.
|
|||
if ( |
|||
response.status === 404 || |
|||
response.headers.get('content-type').indexOf('javascript') === -1 |
|||
) { |
|||
// No service worker found. Probably a different app. Reload the page.
|
|||
navigator.serviceWorker.ready.then(registration => { |
|||
registration.unregister().then(() => { |
|||
window.location.reload(); |
|||
}); |
|||
}); |
|||
} else { |
|||
// Service worker found. Proceed as normal.
|
|||
registerValidSW(swUrl); |
|||
} |
|||
}) |
|||
.catch(() => { |
|||
console.log( |
|||
'No internet connection found. App is running in offline mode.' |
|||
); |
|||
}); |
|||
} |
|||
|
|||
export function unregister() { |
|||
if ('serviceWorker' in navigator) { |
|||
navigator.serviceWorker.ready.then(registration => { |
|||
registration.unregister(); |
|||
}); |
|||
} |
|||
} |
@ -0,0 +1,21 @@ |
|||
import React, { Component } from 'react'; |
|||
|
|||
import {card, tx} from 'oce-components' |
|||
|
|||
class dashboard extends Component { |
|||
constructor(props) { |
|||
super(props); |
|||
this.state = { |
|||
}; |
|||
|
|||
} |
|||
render() { |
|||
return ( |
|||
<div> |
|||
<card></card> |
|||
</div> |
|||
); |
|||
} |
|||
} |
|||
|
|||
export default dashboard; |