Backend API
        
    import React from 'react';
import Diagram, {
  Nodes, AutoLayout, Edges, Toolbox, Group,
} from 'devextreme-react/diagram';
import { ArrayStore } from 'devextreme-react/common/data';
import service from './data.ts';
const orgItemsDataSource = new ArrayStore({
  key: 'id',
  data: service.getOrgItems(),
});
const orgLinksDataSource = new ArrayStore({
  key: 'id',
  data: service.getOrgLinks(),
});
function itemTypeExpr(obj: { type: string; }, value: string) {
  if (value) {
    obj.type = (value === 'rectangle') ? undefined : 'group';
  } else {
    return obj.type === 'group' ? 'ellipse' : 'rectangle';
  }
  return null;
}
function itemWidthExpr(obj: { width: number; type: string; }, value) {
  if (value) {
    obj.width = value;
  } else {
    return obj.width || (obj.type === 'group' && 1.5) || 1;
  }
  return null;
}
function itemHeightExpr(obj: { height: number; type: string; }, value) {
  if (value) {
    obj.height = value;
  } else {
    return obj.height || (obj.type === 'group' && 1) || 0.75;
  }
  return null;
}
function itemTextStyleExpr(obj: { level: string; }) {
  if (obj.level === 'senior') {
    return { 'font-weight': 'bold', 'text-decoration': 'underline' };
  }
  return {};
}
function itemStyleExpr(obj: { type: string; }) {
  const style: React.CSSProperties = { stroke: '#444444' };
  if (obj.type === 'group') {
    style.fill = '#f3f3f3';
  }
  return style;
}
function linkStyleExpr() {
  return { stroke: '#444444' };
}
function linkFromLineEndExpr() {
  return 'none';
}
function linkToLineEndExpr() {
  return 'none';
}
export default function App() {
  return (
    <Diagram id="diagram">
      <Nodes
        dataSource={orgItemsDataSource}
        typeExpr={itemTypeExpr}
        textExpr="name"
        widthExpr={itemWidthExpr}
        heightExpr={itemHeightExpr}
        textStyleExpr={itemTextStyleExpr}
        styleExpr={itemStyleExpr}>
        <AutoLayout type="tree" orientation="horizontal" />
      </Nodes>
      <Edges dataSource={orgLinksDataSource} styleExpr={linkStyleExpr}
        fromLineEndExpr={linkFromLineEndExpr} toLineEndExpr={linkToLineEndExpr} />
      <Toolbox>
        <Group category="general" title="General" />
      </Toolbox>
    </Diagram>
  );
}
    
    import React from 'react';
import Diagram, {
  Nodes, AutoLayout, Edges, Toolbox, Group,
} from 'devextreme-react/diagram';
import { ArrayStore } from 'devextreme-react/common/data';
import service from './data.js';
const orgItemsDataSource = new ArrayStore({
  key: 'id',
  data: service.getOrgItems(),
});
const orgLinksDataSource = new ArrayStore({
  key: 'id',
  data: service.getOrgLinks(),
});
function itemTypeExpr(obj, value) {
  if (value) {
    obj.type = value === 'rectangle' ? undefined : 'group';
  } else {
    return obj.type === 'group' ? 'ellipse' : 'rectangle';
  }
  return null;
}
function itemWidthExpr(obj, value) {
  if (value) {
    obj.width = value;
  } else {
    return obj.width || (obj.type === 'group' && 1.5) || 1;
  }
  return null;
}
function itemHeightExpr(obj, value) {
  if (value) {
    obj.height = value;
  } else {
    return obj.height || (obj.type === 'group' && 1) || 0.75;
  }
  return null;
}
function itemTextStyleExpr(obj) {
  if (obj.level === 'senior') {
    return { 'font-weight': 'bold', 'text-decoration': 'underline' };
  }
  return {};
}
function itemStyleExpr(obj) {
  const style = { stroke: '#444444' };
  if (obj.type === 'group') {
    style.fill = '#f3f3f3';
  }
  return style;
}
function linkStyleExpr() {
  return { stroke: '#444444' };
}
function linkFromLineEndExpr() {
  return 'none';
}
function linkToLineEndExpr() {
  return 'none';
}
export default function App() {
  return (
    <Diagram id="diagram">
      <Nodes
        dataSource={orgItemsDataSource}
        typeExpr={itemTypeExpr}
        textExpr="name"
        widthExpr={itemWidthExpr}
        heightExpr={itemHeightExpr}
        textStyleExpr={itemTextStyleExpr}
        styleExpr={itemStyleExpr}
      >
        <AutoLayout
          type="tree"
          orientation="horizontal"
        />
      </Nodes>
      <Edges
        dataSource={orgLinksDataSource}
        styleExpr={linkStyleExpr}
        fromLineEndExpr={linkFromLineEndExpr}
        toLineEndExpr={linkToLineEndExpr}
      />
      <Toolbox>
        <Group
          category="general"
          title="General"
        />
      </Toolbox>
    </Diagram>
  );
}
    
    import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
  <App />,
  document.getElementById('app'),
);
    
    const orgItems = [
  {
    id: '106',
    name: 'Development',
    type: 'group',
  },
  {
    id: '107',
    name: 'WinForms\nTeam',
    type: 'group',
  },
  {
    id: '108',
    name: 'WPF\nTeam',
    type: 'group',
  },
  {
    id: '109',
    name: 'Javascript\nTeam',
    type: 'group',
  },
  {
    id: '110',
    name: 'ASP.NET\nTeam',
    type: 'group',
  },
  {
    id: '112',
    name: 'Ana\nTrujillo',
    level: 'senior',
  },
  {
    id: '113',
    name: 'Antonio\nMoreno',
  },
  {
    id: '115',
    name: 'Christina\nBerglund',
  },
  {
    id: '116',
    name: 'Hanna\nMoos',
  },
  {
    id: '119',
    name: 'Laurence\nLebihan',
  },
  {
    id: '120',
    name: 'Elizabeth\nLincoln',
    level: 'senior',
  },
  {
    id: '122',
    name: 'Patricio\nSimpson',
    level: 'senior',
  },
  {
    id: '123',
    name: 'Francisco\nChang',
  },
];
const orgLinks = [
  {
    id: '124',
    from: '106',
    to: '108',
  },
  {
    id: '125',
    from: '106',
    to: '109',
  },
  {
    id: '126',
    from: '106',
    to: '107',
  },
  {
    id: '127',
    from: '106',
    to: '110',
  },
  {
    id: '129',
    from: '110',
    to: '112',
  },
  {
    id: '130',
    from: '110',
    to: '113',
  },
  {
    id: '132',
    from: '107',
    to: '115',
  },
  {
    id: '133',
    from: '107',
    to: '116',
  },
  {
    id: '136',
    from: '108',
    to: '119',
  },
  {
    id: '137',
    from: '108',
    to: '120',
  },
  {
    id: '139',
    from: '109',
    to: '122',
  },
  {
    id: '140',
    from: '109',
    to: '123',
  },
];
export default {
  getOrgItems() {
    return orgItems;
  },
  getOrgLinks() {
    return orgLinks;
  },
};
    
    window.exports = window.exports || {};
window.config = {
  transpiler: 'ts',
  typescriptOptions: {
    module: 'system',
    emitDecoratorMetadata: true,
    experimentalDecorators: true,
    jsx: 'react',
  },
  meta: {
    'react': {
      'esModule': true,
    },
    'typescript': {
      'exports': 'ts',
    },
    'devextreme/time_zone_utils.js': {
      'esModule': true,
    },
    'devextreme/localization.js': {
      'esModule': true,
    },
    'devextreme/viz/palette.js': {
      'esModule': true,
    },
    'openai': {
      'esModule': true,
    },
  },
  paths: {
    'npm:': 'https://cdn.jsdelivr.net/npm/',
    'bundles:': '../../../../bundles/',
    'externals:': '../../../../bundles/externals/',
  },
  defaultExtension: 'js',
  map: {
    'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
    'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
    'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
    'react': 'npm:react@17.0.2/umd/react.development.js',
    'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
    'prop-types': 'npm:prop-types/prop-types.js',
    'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
    'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js',
    'es6-object-assign': 'npm:es6-object-assign',
    'devextreme': 'npm:devextreme@link:../../packages/devextreme/artifacts/npm/devextreme/cjs',
    'devextreme-react': 'npm:devextreme-react@link:../../packages/devextreme-react/npm/cjs',
    'devextreme-quill': 'npm:devextreme-quill@1.7.6/dist/dx-quill.min.js',
    'devexpress-diagram': 'npm:devexpress-diagram@2.2.24/dist/dx-diagram.js',
    'devexpress-gantt': 'npm:devexpress-gantt@4.1.64/dist/dx-gantt.js',
    'inferno': 'npm:inferno@8.2.3/dist/inferno.min.js',
    'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
    'inferno-create-element': 'npm:inferno-create-element@8.2.3/dist/inferno-create-element.min.js',
    'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
    'inferno-hydrate': 'npm:inferno-hydrate/dist/inferno-hydrate.min.js',
    'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
    'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
    'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
    '@preact/signals-core': 'npm:@preact/signals-core@1.8.0/dist/signals-core.min.js',
    'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',
    // SystemJS plugins
    'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
    'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',
    // Prettier
    'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',
    'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',
  },
  packages: {
    'devextreme': {
      defaultExtension: 'js',
    },
    'devextreme-react': {
      main: 'index.js',
    },
    'devextreme-react/common': {
      main: 'index.js',
    },
    'devextreme/events/utils': {
      main: 'index',
    },
    'devextreme/common/core/events/utils': {
      main: 'index',
    },
    'devextreme/localization/messages': {
      format: 'json',
      defaultExtension: 'json',
    },
    'devextreme/events': {
      main: 'index',
    },
    'es6-object-assign': {
      main: './index.js',
      defaultExtension: 'js',
    },
  },
  packageConfigPaths: [
    'npm:@devextreme/*/package.json',
  ],
  babelOptions: {
    sourceMaps: false,
    stage0: true,
    react: true,
  },
};
System.config(window.config);
// eslint-disable-next-line
const useTgzInCSB = ['openai'];
    
    import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
    
    const orgItems = [
  {
    id: '106',
    name: 'Development',
    type: 'group',
  },
  {
    id: '107',
    name: 'WinForms\nTeam',
    type: 'group',
  },
  {
    id: '108',
    name: 'WPF\nTeam',
    type: 'group',
  },
  {
    id: '109',
    name: 'Javascript\nTeam',
    type: 'group',
  },
  {
    id: '110',
    name: 'ASP.NET\nTeam',
    type: 'group',
  },
  {
    id: '112',
    name: 'Ana\nTrujillo',
    level: 'senior',
  },
  {
    id: '113',
    name: 'Antonio\nMoreno',
  },
  {
    id: '115',
    name: 'Christina\nBerglund',
  },
  {
    id: '116',
    name: 'Hanna\nMoos',
  },
  {
    id: '119',
    name: 'Laurence\nLebihan',
  },
  {
    id: '120',
    name: 'Elizabeth\nLincoln',
    level: 'senior',
  },
  {
    id: '122',
    name: 'Patricio\nSimpson',
    level: 'senior',
  },
  {
    id: '123',
    name: 'Francisco\nChang',
  },
];
const orgLinks = [
  {
    id: '124',
    from: '106',
    to: '108',
  },
  {
    id: '125',
    from: '106',
    to: '109',
  },
  {
    id: '126',
    from: '106',
    to: '107',
  },
  {
    id: '127',
    from: '106',
    to: '110',
  },
  {
    id: '129',
    from: '110',
    to: '112',
  },
  {
    id: '130',
    from: '110',
    to: '113',
  },
  {
    id: '132',
    from: '107',
    to: '115',
  },
  {
    id: '133',
    from: '107',
    to: '116',
  },
  {
    id: '136',
    from: '108',
    to: '119',
  },
  {
    id: '137',
    from: '108',
    to: '120',
  },
  {
    id: '139',
    from: '109',
    to: '122',
  },
  {
    id: '140',
    from: '109',
    to: '123',
  },
];
export default {
  getOrgItems() {
    return orgItems;
  },
  getOrgLinks() {
    return orgLinks;
  },
};
    
    <!DOCTYPE html>
<html lang="en">
  <head>
    <title>DevExtreme Demo</title>
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
    <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/25.1.6/css/dx-diagram.min.css" />
    <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/25.1.6/css/dx.light.css" />
    <link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" />
    <link rel="stylesheet" type="text/css" href="styles.css" />
    <script src="https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/systemjs@0.21.3/dist/system.js"></script>
    <script type="text/javascript" src="config.js"></script>
    <script type="text/javascript">
      System.import("./index.tsx");
    </script>
  </head>
  <body class="dx-viewport">
    <div class="demo-container">
      <div id="app"></div>
    </div>
  </body>
</html>
    
    #diagram {
  height: 900px;
}