Reproject geojson geometry from WGS84 to Spherical Mercator. In backend I am using sphericalmercator moduel to convert the coordinates from WGS84 (epsg:4326) to Spehrical Mercator (EPSG:3857) also called web mercator.
npm install reproject-spherical-mercator
var reproject = require('reproject-spherical-mercator');
var reprojected-geojson = reproject(wgs84-geojson);This project is licensed under the terms of the MIT license.