Popup always open in the marker

Is there any way the popup always stays open and does not need to click on it to open?

• Expected behaviour
• Actual behavior

What you can do is to make your own Marker class from the react-leaflet marker, and then call the leaflet function openPopup() on the leaflet object after it has been mounted.

// Create your own class, extending from the Marker class.
class ExtendedMarker extends Marker {
    componentDidMount() {
        // Call the Marker class componentDidMount (to make sure everything behaves as normal)
        super.componentDidMount();

       // Access the marker element and open the popup.
      this.leafletElement.openPopup();
    }
}

This will make the popup open once the component has been mounted, and will also behave like a normal popup afterwards, ie. on close/open.

I threw together this fiddle that shows the same code together with the basic example.