Step-by-step guide on uploading a local JSON file to Google Maps

I am in the process of creating a map for my website using the Google Maps JavaScript API. The map includes a local JSON layer that outlines a specific polygon area on the map. Everything worked perfectly when I tested it within Visual Studio, but when I tried opening map.html outside of the VisualStudio project, the polygon did not appear. What could be causing this issue?

Here is the code used to load the JSON layer:

        map.data.loadGeoJson(href = "MapLayer.json");
        map.data.setStyle({

            fillColor: 'red'
        });
javascriptjsongoogle-maps

Answer №1

Maybe consider moving the folder into xampp/wamp/tomcat or a different http-server. It could be that google maps doesn't support the file:// protocol.

Answer №3

To include the file path, simply insert it in this manner. By including console.log(map.data.loadGeoJson), you can view the Google array or identify any issues by checking the console output.

map.data.loadGeoJson('PATH TO FILE\MapLayer.json);
console.log(map.data.loadGeoJson)
map.data.setStyle({
                   fillColor: 'red'
                  });

Answer №4

Let's make things easy, check out this piece of code I've got for you:

data = map.data.loadGeoJson('my.geojson');

map.data.addGeoJson(data);

All you need to do is specify your geojson file, like 'my.geojson' in this example, and then include the data on the map.

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