Geochart map updates reactively when slider changes. Data from MongoDB. Implemented with official Google Charts Api.
Api key from Google is required (https://developers.google.com/maps/documentation/javascript/get-api-key). You can put it in imports/ui/components/geochart/geochart.js file, inside myApiKey var, e.g.:
const myApiKey = "AIzsSyD4cYuf8s9GzKw34erDY8in8xwTtE"; // Google Api Key
meteor npm install
meteor
Go to http://localhost:3000