Add Google Maps in ASP.NET core web application

To add Google Maps in an ASP.NET Core web application, you can follow these steps:

1. Get an API Key: First, you need to get a Google Maps API key. You can get this by following the instructions on the Google Maps Platform website.
2. Install Google Maps JavaScript API: Next, you need to install the Google Maps JavaScript API using NPM. You can do this by running the following command in the Package Manager Console:
   Install-Package GoogleMapsJS

3. Add Google Maps script to your HTML file: You need to add the Google Maps JavaScript API script to your HTML file. You can do this by adding the following code to your _Layout.cshtml file:
   <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY"></script>


   Note that you should replace YOUR_API_KEY with the actual API key you obtained in step 1.

4. Create a View: Create a new view or modify an existing one to include a container where the map will be displayed. For example:
   <div id="map" style="height: 400px;"></div>

5. Initialize the Map: Then you need to initialize the map by adding the following code to your JavaScript file:
   function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
center: { lat: 51.509865, lng: -0.118092 },
zoom: 8
});
}


   Note that the center property specifies the initial center of the map, and the zoom property specifies the initial zoom level.

6. Call the initMap function: Finally, you need to call the initMap function when the page is loaded. You can do this by adding the following code to your HTML file:
   <script>
initMap();
</script>


   This will initialize the map when the page is loaded.

Recommendation:

Protect your API key : In order to protect your account from unwanted malicious usage, Google recommend restricting your Google Maps Platform API key.