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Add React Project from Twitch Session
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‎.gitignore

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node_modules
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‎index.html

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const session = driver.session({database:"gameofthrones"});
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const start = new Date()
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session
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.run('MATCH (n)-->(m) RETURN id(n) as source, id(m) as target LIMIT $limit', {limit: neo4j.int(5000)})
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.run('MATCH (n)-[:INTERACTS1]->(m) RETURN id(n) as source, id(m) as target LIMIT $limit', {limit: neo4j.int(5000)})
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.then(function (result) {
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const links = result.records.map(r => { return {source:r.get('source').toNumber(), target:r.get('target').toNumber()}});
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session.close();
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console.log(links.length+" links loaded in "+(new Date()-start)+" ms.")
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const ids = new Set()
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links.forEach(l => {ids.add(l.source);ids.add(l.target);});
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const gData = { nodes: Array.from(ids).map(id => {return {id:id}}), links: links}
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const gData = { nodes: Array.from(ids).map(id => {return {id}}), links: links}
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const Graph = ForceGraph3D()(document.getElementById('3d-graph')).graphData(gData);
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})
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.catch(function (error) {

‎particles.html

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const session = driver.session({database:"gameofthrones"});
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const start = new Date()
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session
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.run('MATCH (n)-[r]->(m) RETURN { id: id(n), label:head(labels(n)), community:n.louvain, caption:n.name, size:n.pagerank } as source, { id: id(m), label:head(labels(m)), community:n.louvain, caption:m.name, size:m.pagerank } as target, {weight:r.weight, type:type(r), community:case when n.community < m.community then n.community else m.community end} as rel LIMIT $limit', {limit: neo4j.int(5000)})
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.run('MATCH (n)-[r:INTERACTS1]->(m) RETURN { id: id(n), label:head(labels(n)), community:n.louvain, caption:n.name, size:n.pagerank } as source, { id: id(m), label:head(labels(m)), community:n.louvain, caption:m.name, size:m.pagerank } as target, {weight:r.weight, type:type(r), community:case when n.community < m.community then n.community else m.community end} as rel LIMIT $limit', {limit: neo4j.int(5000)})
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.then(function (result) {
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const nodes = {}
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const links = result.records.map(r => {

‎react-graph-viz/.gitignore

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# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
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# dependencies
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/node_modules
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/.pnp
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.pnp.js
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# testing
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/coverage
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# production
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/build
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# misc
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.DS_Store
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.env.local
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.env.development.local
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.env.test.local
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.env.production.local
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*

‎react-graph-viz/README.md

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# React Graph Viz
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This project shows how to use [2d-force-graph react components](https://github.com/vasturiano/react-force-graph) with a [Neo4j Database](https://neo4j.com/developer).
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A Cypher query from a textarea is used to query the database.
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The results are then rendered as graph visualization.
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This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
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## Available Scripts
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In the project directory, you can run:
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### `yarn start`
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Runs the app in the development mode.<br />
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Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
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The page will reload if you make edits.<br />
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You will also see any lint errors in the console.
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### `yarn build`
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Builds the app for production to the `build` folder.<br />
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It correctly bundles React in production mode and optimizes the build for the best performance.
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Your app is ready to be deployed!
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See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.

‎react-graph-viz/package.json

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{
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"name": "graph-viz",
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"version": "0.1.0",
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"private": true,
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"dependencies": {
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"@testing-library/jest-dom": "^4.2.4",
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"@testing-library/react": "^9.3.2",
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"@testing-library/user-event": "^7.1.2",
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"neo4j-driver": "^4.0.2",
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"react": "^16.13.1",
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"react-dom": "^16.13.1",
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"react-force-graph-2d": "^1.16.3",
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"react-scripts": "3.4.1"
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},
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"scripts": {
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"start": "react-scripts start",
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"build": "react-scripts build",
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"test": "react-scripts test",
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"eject": "react-scripts eject"
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},
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"eslintConfig": {
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"extends": "react-app"
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},
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"browserslist": {
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"production": [
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">0.2%",
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"not dead",
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"not op_mini all"
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],
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"development": [
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"last 1 chrome version",
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"last 1 firefox version",
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"last 1 safari version"
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]
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}
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}

‎react-graph-viz/public/favicon.ico

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‎react-graph-viz/public/index.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<meta name="theme-color" content="#000000" />
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<meta
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name="description"
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content="Web site created using create-react-app"
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/>
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<link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
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<!--
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manifest.json provides metadata used when your web app is installed on a
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user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
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-->
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<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
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<!--
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Notice the use of %PUBLIC_URL% in the tags above.
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It will be replaced with the URL of the `public` folder during the build.
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Only files inside the `public` folder can be referenced from the HTML.
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Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
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work correctly both with client-side routing and a non-root public URL.
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Learn how to configure a non-root public URL by running `npm run build`.
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-->
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<title>React App</title>
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</head>
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<body>
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<noscript>You need to enable JavaScript to run this app.</noscript>
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<div id="root"></div>
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<!--
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This HTML file is a template.
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If you open it directly in the browser, you will see an empty page.
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You can add webfonts, meta tags, or analytics to this file.
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The build step will place the bundled scripts into the <body> tag.
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To begin the development, run `npm start` or `yarn start`.
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To create a production bundle, use `npm run build` or `yarn build`.
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-->
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</body>
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</html>

‎react-graph-viz/public/logo192.png

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‎react-graph-viz/public/logo512.png

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‎react-graph-viz/public/manifest.json

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{
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"short_name": "React App",
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"name": "Create React App Sample",
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"icons": [
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{
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"src": "favicon.ico",
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"sizes": "64x64 32x32 24x24 16x16",
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"type": "image/x-icon"
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},
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{
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"src": "logo192.png",
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"type": "image/png",
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"sizes": "192x192"
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},
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{
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"src": "logo512.png",
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"type": "image/png",
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"sizes": "512x512"
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}
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],
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"start_url": ".",
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"display": "standalone",
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"theme_color": "#000000",
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"background_color": "#ffffff"
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}

‎react-graph-viz/public/robots.txt

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# https://www.robotstxt.org/robotstxt.html
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User-agent: *
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Disallow:

‎react-graph-viz/src/App.css

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.App {
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text-align: center;
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}
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.App-logo {
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height: 40vmin;
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pointer-events: none;
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}
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@media (prefers-reduced-motion: no-preference) {
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.App-logo {
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animation: App-logo-spin infinite 20s linear;
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}
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}
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.App-header {
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background-color: #282c34;
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min-height: 100vh;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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font-size: calc(10px + 2vmin);
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color: white;
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}
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.App-link {
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color: #61dafb;
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}
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@keyframes App-logo-spin {
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from {
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transform: rotate(0deg);
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}
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to {
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transform: rotate(360deg);
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}
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}

‎react-graph-viz/src/App.js

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import React from 'react';
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import './App.css';
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import CypherViz from './CypherViz';
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function App({driver}) {
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return (
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<div className="App">
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<CypherViz driver={driver}></CypherViz>
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</div>
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);
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}
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export default App;

‎react-graph-viz/src/App.test.js

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import React from 'react';
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import { render } from '@testing-library/react';
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import App from './App';
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test('renders learn react link', () => {
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const { getByText } = render(<App />);
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const linkElement = getByText(/learn react/i);
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expect(linkElement).toBeInTheDocument();
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});

‎react-graph-viz/src/CypherViz.js

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import React from 'react';
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import './App.css';
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import ForceGraph2D from 'react-force-graph-2d';
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// Usage: <CypherViz driver={driver}/>
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class CypherViz extends React.Component {
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constructor({driver}) {
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super();
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this.driver = driver;
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this.state = {
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query: `
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MATCH (n:Character)-[:INTERACTS1]->(m:Character)
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RETURN n.name as source, m.name as target
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`,
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data : {nodes:[{name:"Joe"},{name:"Jane"}],links:[{source:"Joe",target:"Jane"}]} }
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}
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handleChange = (event) => {
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this.setState({query:event.target.value})
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}
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loadData = async () => {
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let session = await this.driver.session({database:"gameofthrones"});
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let res = await session.run(this.state.query);
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session.close();
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console.log(res);
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let nodes = new Set();
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let links = res.records.map(r => {
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let source = r.get("source");
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let target = r.get("target");
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nodes.add(source);
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nodes.add(target);
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return {source, target}});
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nodes = Array.from(nodes).map(name => {return {name}});
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this.setState({ data : {nodes, links}});
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}
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render() {
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return (
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<div>
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<textarea style={{display:"block",width:"800px", height:"100px"}}
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value={this.state.query}
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onChange={this.handleChange}/>
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<button onClick={this.loadData}>Reload</button>
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<ForceGraph2D graphData={this.state.data} nodeId="name"
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linkCurvature={0.2} linkDirectionalArrowRelPos={1} linkDirectionalArrowLength={10}/>
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</div>
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);
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}
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}
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export default CypherViz

‎react-graph-viz/src/index.css

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body {
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margin: 0;
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
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'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
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sans-serif;
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-webkit-font-smoothing: antialiased;
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-moz-osx-font-smoothing: grayscale;
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}
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code {
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font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
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monospace;
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}

‎react-graph-viz/src/index.js

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import React from 'react';
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import ReactDOM from 'react-dom';
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import './index.css';
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import App from './App';
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import * as serviceWorker from './serviceWorker';
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import * as neo4j from 'neo4j-driver';
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const driver = neo4j.driver(
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process.env.NEO4J_URI || 'bolt://demo.neo4jlabs.com',
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neo4j.auth.basic(
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process.env.NEO4J_USER || 'gameofthrones',
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process.env.NEO4J_PASSWORD || 'gameofthrones'
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),
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{
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encrypted: process.env.NEO4J_ENCRYPTED ? 'ENCRYPTION_ON' : 'ENCRYPTION_OFF',
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}
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)
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ReactDOM.render(
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<React.StrictMode>
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<App driver={driver}/>
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</React.StrictMode>,
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document.getElementById('root')
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);
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// If you want your app to work offline and load faster, you can change
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// unregister() to register() below. Note this comes with some pitfalls.
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// Learn more about service workers: https://bit.ly/CRA-PWA
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serviceWorker.unregister();

‎react-graph-viz/src/logo.svg

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