Backend API
        
    import React from 'react';
import VectorMap, {
  Label,
  Layer,
  Font,
  LoadingIndicator,
} from 'devextreme-react/vector-map';
import * as mapsData from 'devextreme-dist/js/vectormap-data/usa.js';
import { weatherData } from './data.ts';
const bounds = [-118, 52, -80, 20];
const App = () => (
  <VectorMap
    id="vector-map"
    bounds={bounds}>
    <Layer
      dataSource={mapsData.usa}
      hoverEnabled={false}
      borderColor="#ffffff"
    >
    </Layer>
    <Layer
      dataSource={weatherData}
      type="marker"
      elementType="image"
      dataField="url"
      size={51}>
      <Label dataField="text">
        <Font size={14} />
      </Label>
    </Layer>
    <LoadingIndicator show={true} />
  </VectorMap>
);
export default App;
    
    import React from 'react';
import VectorMap, {
  Label, Layer, Font, LoadingIndicator,
} from 'devextreme-react/vector-map';
import * as mapsData from 'devextreme-dist/js/vectormap-data/usa.js';
import { weatherData } from './data.js';
const bounds = [-118, 52, -80, 20];
const App = () => (
  <VectorMap
    id="vector-map"
    bounds={bounds}
  >
    <Layer
      dataSource={mapsData.usa}
      hoverEnabled={false}
      borderColor="#ffffff"
    ></Layer>
    <Layer
      dataSource={weatherData}
      type="marker"
      elementType="image"
      dataField="url"
      size={51}
    >
      <Label dataField="text">
        <Font size={14} />
      </Label>
    </Layer>
    <LoadingIndicator show={true} />
  </VectorMap>
);
export default App;
    
    import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
  <App />,
  document.getElementById('app'),
);
    
    function getImageUrl(name: string) {
  return `../../../../images/VectorMap/${name}.png`;
}
export const weatherData = {
  type: 'FeatureCollection',
  features: [{
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-74.007118, 40.71455],
    },
    properties: {
      url: getImageUrl('Storm'),
      text: 'New York',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-77.016251, 38.904758],
    },
    properties: {
      url: getImageUrl('Cloudy'),
      text: 'Washington',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-81.674782, 30.332251],
    },
    properties: {
      url: getImageUrl('Storm'),
      text: 'Jacksonville',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-84.423058, 33.763191],
    },
    properties: {
      url: getImageUrl('Rain'),
      text: 'Atlanta',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-97.514839, 35.466179],
    },
    properties: {
      url: getImageUrl('PartlyCloudy'),
      text: 'Oklahoma City',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-87.632408, 41.884151],
    },
    properties: {
      url: getImageUrl('Rain'),
      text: 'Chicago',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-93.103882, 44.947769],
    },
    properties: {
      url: getImageUrl('PartlyCloudy'),
      text: 'St. Paul',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-94.626823, 39.113522],
    },
    properties: {
      url: getImageUrl('Cloudy'),
      text: 'Kansas City',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-95.381889, 29.775419],
    },
    properties: {
      url: getImageUrl('Sunny'),
      text: 'Houston',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-104.991997, 39.740002],
    },
    properties: {
      url: getImageUrl('PartlyCloudy'),
      text: 'Denver',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-116.193413, 43.606979],
    },
    properties: {
      url: getImageUrl('Sunny'),
      text: 'Boise',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-118.245003, 34.053501],
    },
    properties: {
      url: getImageUrl('PartlyCloudy'),
      text: 'Los Angeles',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-121.886002, 37.3386],
    },
    properties: {
      url: getImageUrl('PartlyCloudy'),
      text: 'San Jose',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-123.0252, 44.923199],
    },
    properties: {
      url: getImageUrl('Sunny'),
      text: 'Salem',
    },
  }, {
    type: 'Feature',
    geometry: {
      type: 'Point',
      coordinates: [-122.329437, 47.603561],
    },
    properties: {
      url: getImageUrl('Sunny'),
      text: 'Seattle',
    },
  }],
};
    
    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,
    },
    'devextreme-dist/js/vectormap-data/*': {
      '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',
    'devextreme-dist/js/vectormap-data': '../../../../js/vectormap-data',
    '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'));
    
    function getImageUrl(name) {
  return `../../../../images/VectorMap/${name}.png`;
}
export const weatherData = {
  type: 'FeatureCollection',
  features: [
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-74.007118, 40.71455],
      },
      properties: {
        url: getImageUrl('Storm'),
        text: 'New York',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-77.016251, 38.904758],
      },
      properties: {
        url: getImageUrl('Cloudy'),
        text: 'Washington',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-81.674782, 30.332251],
      },
      properties: {
        url: getImageUrl('Storm'),
        text: 'Jacksonville',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-84.423058, 33.763191],
      },
      properties: {
        url: getImageUrl('Rain'),
        text: 'Atlanta',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-97.514839, 35.466179],
      },
      properties: {
        url: getImageUrl('PartlyCloudy'),
        text: 'Oklahoma City',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-87.632408, 41.884151],
      },
      properties: {
        url: getImageUrl('Rain'),
        text: 'Chicago',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-93.103882, 44.947769],
      },
      properties: {
        url: getImageUrl('PartlyCloudy'),
        text: 'St. Paul',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-94.626823, 39.113522],
      },
      properties: {
        url: getImageUrl('Cloudy'),
        text: 'Kansas City',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-95.381889, 29.775419],
      },
      properties: {
        url: getImageUrl('Sunny'),
        text: 'Houston',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-104.991997, 39.740002],
      },
      properties: {
        url: getImageUrl('PartlyCloudy'),
        text: 'Denver',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-116.193413, 43.606979],
      },
      properties: {
        url: getImageUrl('Sunny'),
        text: 'Boise',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-118.245003, 34.053501],
      },
      properties: {
        url: getImageUrl('PartlyCloudy'),
        text: 'Los Angeles',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-121.886002, 37.3386],
      },
      properties: {
        url: getImageUrl('PartlyCloudy'),
        text: 'San Jose',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-123.0252, 44.923199],
      },
      properties: {
        url: getImageUrl('Sunny'),
        text: 'Salem',
      },
    },
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [-122.329437, 47.603561],
      },
      properties: {
        url: getImageUrl('Sunny'),
        text: 'Seattle',
      },
    },
  ],
};
    
    <!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.light.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>
    
    #vector-map {
  height: 440px;
}