Load Colorado Taxonomy Terms Into a Drupal 8 Vocabulary

counties-to-vocabulary.php

<?php

use Drupal\taxonomy\Entity\Term;

function county_alphabetize($a, $b) {
 return $a->properties->NAMELSAD > $b->properties->NAMELSAD;
}

$county  = file_get_contents('https://raw.githubusercontent.com/kthotav/TopoJSON-Maps/master/usa/usa-states/colorado/colorado-counties.json');
$json = json_decode($county);

$counties = $json->objects->{'colorado-counties'}->geometries;
usort($counties, 'county_alphabetize');

foreach ($counties AS $county) {
  $term = Term::create([
    'name' => $county->properties->NAMELSAD, 
    'vid' => 'network_county',
  ])->save();
}