Add React Project from Twitch Session

.gitignore

@@ -0,0 +1,2 @@
+node_modules
+

index.html

@@ -14,14 +14,14 @@
 	const session = driver.session({database:"gameofthrones"});
 	const start = new Date()
     session
-      .run('MATCH (n)-->(m) RETURN id(n) as source, id(m) as target LIMIT $limit', {limit: neo4j.int(5000)})
+      .run('MATCH (n)-[:INTERACTS1]->(m) RETURN id(n) as source, id(m) as target LIMIT $limit', {limit: neo4j.int(5000)})
       .then(function (result) {
         const links = result.records.map(r => { return {source:r.get('source').toNumber(), target:r.get('target').toNumber()}});        
         session.close();
         console.log(links.length+" links loaded in "+(new Date()-start)+" ms.")
         const ids = new Set()
         links.forEach(l => {ids.add(l.source);ids.add(l.target);});
-        const gData = { nodes: Array.from(ids).map(id => {return {id:id}}), links: links}
+        const gData = { nodes: Array.from(ids).map(id => {return {id}}), links: links}
         const Graph = ForceGraph3D()(document.getElementById('3d-graph')).graphData(gData);
       })
       .catch(function (error) {

particles.html

@@ -15,7 +15,7 @@
 	const session = driver.session({database:"gameofthrones"});
 	const start = new Date()
     session
-      .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)})
+      .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)})
       .then(function (result) {
         const nodes = {}
         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.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

react-graph-viz/README.md

@@ -0,0 +1,27 @@
+# React Graph Viz
+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).
+
+A Cypher query from a textarea is used to query the database.
+The results are then rendered as graph visualization.
+
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `yarn start`
+
+Runs the app in the development mode.<br />
+Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
+
+The page will reload if you make edits.<br />
+You will also see any lint errors in the console.
+
+### `yarn build`
+
+Builds the app for production to the `build` folder.<br />
+It correctly bundles React in production mode and optimizes the build for the best performance.
+Your app is ready to be deployed!
+
+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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+{
+  "name": "graph-viz",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@testing-library/jest-dom": "^4.2.4",
+    "@testing-library/react": "^9.3.2",
+    "@testing-library/user-event": "^7.1.2",
+    "neo4j-driver": "^4.0.2",
+    "react": "^16.13.1",
+    "react-dom": "^16.13.1",
+    "react-force-graph-2d": "^1.16.3",
+    "react-scripts": "3.4.1"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": "react-app"
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

react-graph-viz/public/index.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      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`.
+    -->
+    <title>React App</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`.
+    -->
+  </body>
+</html>

react-graph-viz/public/manifest.json

@@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}

react-graph-viz/public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

react-graph-viz/src/App.css

@@ -0,0 +1,38 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}

react-graph-viz/src/App.js

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

react-graph-viz/src/App.test.js

@@ -0,0 +1,9 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  const { getByText } = render(<App />);
+  const linkElement = getByText(/learn react/i);
+  expect(linkElement).toBeInTheDocument();
+});

react-graph-viz/src/CypherViz.js

@@ -0,0 +1,52 @@
+import React from 'react';
+import './App.css';
+import ForceGraph2D from 'react-force-graph-2d';
+
+// Usage: <CypherViz driver={driver}/>
+
+class CypherViz extends React.Component {
+    constructor({driver}) {
+      super();
+      this.driver = driver;
+      this.state = { 
+        query: `
+        MATCH (n:Character)-[:INTERACTS1]->(m:Character) 
+        RETURN n.name as source, m.name as target
+        `,
+        data : {nodes:[{name:"Joe"},{name:"Jane"}],links:[{source:"Joe",target:"Jane"}]} }
+    }
+
+    handleChange = (event) => {
+      this.setState({query:event.target.value})
+    }
+    loadData = async () => {
+      let session = await this.driver.session({database:"gameofthrones"});
+      let res = await session.run(this.state.query);
+      session.close();
+      console.log(res);
+      let nodes = new Set();
+      let links = res.records.map(r => {
+        let source = r.get("source");
+        let target = r.get("target");
+        nodes.add(source);
+        nodes.add(target);
+        return {source, target}});
+      nodes = Array.from(nodes).map(name => {return {name}});
+      this.setState({ data : {nodes, links}});
+    }
+
+    render() {
+      return (
+        <div>
+          <textarea style={{display:"block",width:"800px", height:"100px"}} 
+                    value={this.state.query}
+                    onChange={this.handleChange}/>
+          <button onClick={this.loadData}>Reload</button>
+          <ForceGraph2D graphData={this.state.data} nodeId="name" 
+                    linkCurvature={0.2} linkDirectionalArrowRelPos={1} linkDirectionalArrowLength={10}/>
+        </div>
+      );  
+    }
+  }
+
+  export default CypherViz

react-graph-viz/src/index.css

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

react-graph-viz/src/index.js

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