Unable to "serialize" geoJSON information

While working with Leaflet JavaScript, I am attempting to retrieve data directly from GeoServer using an Ajax link. To display it nicely in a DataTables table, I need to convert it into JSON format as per DataTables instructions. However, I keep encountering a "Circular structure" error. Is there an alternative method to accomplish this task?

Here is the code snippet:

Getting Selected Features from GeoServer via Ajax

function handleJson(data) {

  selectedFeature = L.geoJson(data, {

    onEachFeature: function (feature, layer) {

    },
    pointToLayer: function (feature, latlng) {

        return L.circleMarker(latlng, {
            radius: 5,
            color: '#3006e8',
            weight: 5,
            opacity: 100,
            fillOpacity: 100
        });
    }
  });
  selectedFeature.addTo(drawnItems);

Now, ideally, I would use JSON.stringify to achieve the results provided by a helpful individual at datatables.net....

I believe that 'var selectedFeature' should be the data to be converted into JSON format. However, my attempts have been unsuccessful. Any suggestions?

javascriptjsonajaxgeojsonstringify

Answer №1

To easily convert a GeoJSON LayerGroup into a FeatureCollection, simply use the following code:

geoJsonData = selectedFeature.toGeoJSON();

After this conversion, you are free to manipulate the data as needed, including converting it to a string.

JSON.stringify(geoJsonData);

Answer №2

After seeking help from @Ethan McCoy, my issue was resolved. Here is the code snippet that fixed my problem:

const leaflet = require('leaflet')
leaflet.then(L => {
    // The response is in geojson format
    const data = L.geoJson(response).toGeoJSON()
    return JSON.stringify(data)
})

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