Show Point Data from GeoJSON on the Map

This tutorial shows how to add a GeoJSON point overlay to the map.

NPM Module Basic JavaScript

Copy the following code, paste it into your favorite text editor, and save it as a .html file.
Replace YOUR_MAPTILER_API_KEY_HERE with your actual MapTiler API key.
The next it’s up to you. You can start the map in a different place by modifying the starting position and starting zoom, and you can change the look of the map to any of our styles, or yours, by updating the style. See what’s available here.
Install the npm package.
Include the CSS file.

If you have a bundler that can handle CSS, you can import the CSS or include it with a <link> in the head of the document via the CDN
Include the following code in your JavaScript file (Example: app.js).
To follow this tutorial you can use Airpots from Natural Earth. Download them here
Add event handler for map load event. You will add code to create a GeoJSON source and a vector layer in this handler.
```
   map.on('load', function() {
      
   });
 
```

Add a custom image to the map. You can use any image or download the airport image we used in the tutorial. In the example the image is in the same folder as the index.html file


  map.on('load', function() {
    map.loadImage('./icon-plane-512.png', async function(error, image){
      if (error) throw error;
      map.addImage('plane', image);

    });
  });

Create GeoJSON source. The following snippet creates GeoJSON source hosted on MapTiler Cloud (check out the How to Upload GeoJSON to MapTiler Cloud tutorial). Publish the dataset and copy link to the geojson. Download the sample data here.
```
     const geojson = await maptilersdk.data.get('YOUR_MAPTILER_DATASET_ID_HERE');
     map.addSource('airports', {
       type: 'geojson',
       data: geojson
     });
 
```

Add the vector layer


   map.addLayer({
     'id': 'airports',
     'type': 'symbol',
     'source': 'airports',
     'layout': {
       'icon-image': 'plane',
       'icon-size': ['*', ['get', 'scalerank'] ,0.01]
     },
     'paint': {}
   });

GitHubLogo View complete source code on GitHub