need to put pin on my geo location and on every user's geo location who will use my link

Need guidance to put pin on my geo location :

Link :- http://camsphere.canopussystems.com/cesium-google-earth-examples-master/demos/geolocation/

You can add a billboard to the fly method. See sample below.

Really you can pretty much any sort of geometry at the location. Check out the entity documentation for more options.

var viewer = new Cesium.Viewer('cesiumContainer');

function fly(position) {
    var source = new Cesium.CustomDataSource();
    viewer.dataSources.add(source);
    var entity = source.entities.add({
        position : Cesium.Cartesian3.fromDegrees(position.coords.longitude, position.coords.latitude),
        ellipse : {
            semiMajorAxis : 100.0,
            semiMinorAxis : 100.0,
            material : new Cesium.ColorMaterialProperty(new Cesium.Color(0.2, 0.2, 1.0, 0.5))
        },
        billboard : {
            image : '../images/whiteShapes.png',
            imageSubRegion : new Cesium.BoundingRectangle(49, 43, 18, 18),
            color : Cesium.Color.LIME
        },
        label : {
            text: 'You are here',
            verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
            show: false
        }
    });

    function showLabel() {
        entity.label.show = true;
    }

    viewer.camera.flyTo({
        destination : Cesium.Cartesian3.fromDegrees(position.coords.longitude, position.coords.latitude, 1005.0),
        complete: showLabel
    });
}

// Ask browser for location, and fly there.
navigator.geolocation.getCurrentPosition(fly);

``

Hi Mike LP,

Thanks for the updates. It is working for me… Now can you guide me how can i store my location and other users who will open this link.

That is a much more complicated issue. Your going to need to decide on a server setup to store that data and then build a web service to return it to your application. Do you have a web developer that you can consult with?