Simple script to get bbox from a geojson and save to a file

country_bbox.js

'use strict';

const turf = require('turf');
const countries = require('./countries.json');
const jsonfile = require('jsonfile')

var file = 'countries_bbox.json';

var bboxs = [];

for (var i=0; i<countries.features.length; i++) {

  var s = countries.features[i];

  var country = {
    iso: s.properties.ADM0_A3,
    name: s.properties.name,
    bbox: turf.bbox(s.geometry)
  };

  bboxs.push(country);
}

// console.log(bboxs);

jsonfile.writeFile(file, bboxs, function (err) {
  console.error(err)
});