to vector tiles

toVector.js

var fs = require('fs');
var geojson2mvt = require('geojson2mvt');

const filePath = 'grids.json';

var options = {
   rootDir: 'grids',
   bbox : [17.896877,-67.298786,18.602453,-65.199024],//[south,west,north,east]-67.298786,17.896877,-65.199024,18.602453
   zoom : {
       min : 6,
       max : 14,
   },
   layerName: 'grids',
};

var geoJson = JSON.parse(fs.readFileSync(filePath, "utf8"));

// build the static tile pyramid
geojson2mvt(geoJson, options);