如何使用React从json文件中读取kepler.gl中的绘图数据

Question

我在做kepler.gl ..。赖特现在我正在从一个api中读取数据，并绘制keplr.gl中的数据，这很好，这里的代码是.

import keplerGlReducer from "kepler.gl/reducers";
import { createStore, combineReducers, applyMiddleware } from "redux";
import { taskMiddleware } from "react-palm/tasks";
import { Provider, useDispatch } from "react-redux";
import KeplerGl from "kepler.gl";
import { addDataToMap } from "kepler.gl/actions";
import useSwr from "swr";

const reducers = combineReducers({
  keplerGl: keplerGlReducer
});

const store = createStore(reducers, {}, applyMiddleware(taskMiddleware));

export default function App() {
  return (
    <Provider store={store}>
      <Map />
      <csv/>
    </Provider>
  );
}

function Map() {
  const dispatch = useDispatch();
  const { data } = useSwr("covid", async () => {
    const response = await fetch(
     "https://gist.githubusercontent.com/leighhalliday/a994915d8050e90d413515e97babd3b3/raw/a3eaaadcc784168e3845a98931780bd60afb362f/covid19.json"
     );
     const data = await response.json();
     return data;
   });

  React.useEffect(() => {
    if (data) {
      dispatch(
        addDataToMap({
          datasets: {
            info: {
              label: "COVID-19",
              id: "covid19"
            },
            data
          },
          option: {
            centerMap: true,
            readOnly: false
          },
          config: {}
        })
      );
    }
  }, [dispatch, data]);

  return (
    <KeplerGl
      id="covid"
      mapboxApiAccessToken="pk.eyJ1IjoiYWxpcmF6YTcwNSIsImEiOiJjazh5d2hjb3AwOHBqM2VsY21wOHo5eXprIn0.9G5CE4KqfbvU9HQ6WBuo3w"
      width={window.innerWidth}
      height={window.innerHeight}
    />
  );
}

现在我想从jason或csv文件中读取数据，并将这些数据绘制成kepler.gl地图。我该怎么做?有人能帮我吗？谢谢

Answer 1

在反应中，像这样做

import datajson from './yourdata.json';

const data=datajson;

Answer 2

最简单的方法是将json或csv文件放在代码旁边，

导入您的json文件：

const dataJson = require('./data.json');

将数据源更改为json：

const data = dataJson
// or dataJson.data depending on your json structure

或者，如果您的数据是csv格式的，那么想到的最快的方法就是安装csv-parse，然后：

const data = parse(csvData, {
   //config based on your csv format
   columns: true,
   skip_empty_lines: true
});

希望这就是你要找的