Get Started

Installation

Use Node v18 and above, older node versions have not been tested

npm install --save kepler.gl @kepler.gl/components @kepler.gl/reducers

Get Mapbox Token

Kepler.gl is built on top of Mapbox GL. A mapbox account and an access token are needed to use kepler.gl in your app. Get a Mapbox Access Token at mapbox.com.

Basic Usage

Basic Usage

0. Working Template

Check full example on Github.

import * as React from "react";
import ReactDOM from "react-dom/client";
import document from "global/document";

import { applyMiddleware, combineReducers, compose, createStore } from "redux";
import { connect, Provider } from "react-redux";

import keplerGlReducer, { enhanceReduxMiddleware } from "@kepler.gl/reducers";
import KeplerGl from "@kepler.gl/components";

import AutoSizer from "react-virtualized/dist/commonjs/AutoSizer";

const reducers = combineReducers({
  keplerGl: keplerGlReducer.initialState({
    uiState: {
      readOnly: false,
      currentModal: null,
    },
  }),
});

const middleWares = enhanceReduxMiddleware([
  // Add other middlewares here
]);

const enhancers = applyMiddleware(...middleWares);

const initialState = {};
const store = createStore(reducers, initialState, compose(enhancers));

const App = () => (
  <div
    style={{
      position: "absolute",
      top: "0px",
      left: "0px",
      width: "100%",
      height: "100%",
    }}
  >
    <AutoSizer>
      {({ height, width }) => (
        <KeplerGl
          mapboxApiAccessToken="xxx" // Replace with your mapbox token
          id="map"
          width={width}
          height={height}
        />
      )}
    </AutoSizer>
  </div>
);

const mapStateToProps = (state) => state;
const dispatchToProps = (dispatch) => ({ dispatch });
const ConnectedApp = connect(mapStateToProps, dispatchToProps)(App);
const Root = () => (
  <Provider store={store}>
    <ConnectedApp />
  </Provider>
);

export default Root;

1. Mount reducer

Kepler.gl uses Redux to manage its internal state, along with react-palm middleware to handle side effects. Mount kepler.gl reducer in your store, apply taskMiddleware.

import keplerGlReducer from '@kepler.gl/reducers';
import {createStore, combineReducers, applyMiddleware} from 'redux';
import {taskMiddleware} from 'react-palm/tasks';

const reducer = combineReducers({
  // <-- mount kepler.gl reducer in your app
  keplerGl: keplerGlReducer,

  // Your other reducers here
  app: appReducer
});

// create store
const store = createStore(reducer, {}, applyMiddleware(taskMiddleware));

If you mount keplerGlReducer in another address instead of keplerGl, or it is not mounted at root of your reducer, you will need to specify the path to it when you mount the component with the getState prop.

2. Mount component

import KeplerGl from '@kepler.gl/components';

const Map = props => (
  <KeplerGl
      id="foo"
      mapboxApiAccessToken={token}
      width={width}
      height={height}/>
);

3. Add data to map

In order to interact with a kepler.gl instance and add new data to it, you can dispatch the addDataToMap action from anywhere inside your app. It adds dataset(s) to a kepler.gl instance and updates the full configuration (mapState, mapStyle, visState).

Read more about addDataToMap

import {addDataToMap} from '@kepler.gl/actions';

this.props.dispatch(
  addDataToMap({
    // datasets
    datasets: {
      info: {
        label: 'Sample Taxi Trips in New York City',
        id: 'test_trip_data'
      },
      data: sampleTripData
    },
    // option
    option: {
      centerMap: true,
      readOnly: false
    },
    // config
    config: {
      mapStyle: {styleType: 'light'}
    }
  })
);