README.md

Count features in MVT tile

Usage:

npm i @mapbox/vector-tile
node count-features-in-tile.js tile.pbf

count-features-in-tile.js

const fs = require("fs");
const Protobuf = require("pbf");
const VectorTile = require("@mapbox/vector-tile").VectorTile;

const args = process.argv.slice(2);
const data = fs.readFileSync(args[0]);

const tile = new VectorTile(new Protobuf(data));
const layers = tile.layers;

Object.keys(layers).forEach(layerId => {
  const layer = layers[layerId];
  console.log(layerId, layer.length);
});