在sagas中获取地图中的数据

// Redux action
const fetchMapData = () => ({
  type: "FETCH_MAP_DATA",
});

// Redux reducer
const mapReducer = (state = {}, action) => {
  switch (action.type) {
    case "FETCH_MAP_DATA_SUCCESS":
      return {
        ...state,
        mapData: action.payload,
      };
    default:
      return state;
  }
};

// Redux saga
function* fetchMapDataSaga() {
  try {
    const response = yield call(api.fetchMapData); // 使用适当的API或库发起异步请求
    yield put({ type: "FETCH_MAP_DATA_SUCCESS", payload: response.data }); // 将数据发送给Redux的reducer
  } catch (error) {
    yield put({ type: "FETCH_MAP_DATA_FAILURE", error });
  }
}

function* watchFetchMapData() {
  yield takeLatest("FETCH_MAP_DATA", fetchMapDataSaga);
}

// 在根saga中启动watcher saga
export default function* rootSaga() {
  yield all([watchFetchMapData()]);
}