You came here probably because Google Maps doesn't work with your Polymer 3 build.
This one functions for now, not efficiently but consider it a temporary solution.
Use until Google releases a lit-html version.
See the progress here
Forked from the fork that forked this originally...
<google-map fit-to-markers api-key="AIzaSyD3E1D9b-Z7ekrT3tbhl_dy8DCXuIuDDRc">
<google-map-marker latitude="37.78" longitude="-122.4" draggable="true"></google-map-marker>
</google-map>Breaking changes:
- Markers added to
<google-map>must now specifyslot="markers"to be added correctly.