public function indexajax(Request $request, $cityID) {
      $rajaongkir = new Rajaongkir\Domestic('xxxxxxxxx');
      $province = $rajaongkir->province();

      $origin = 152; //Jakarta
      $destination = $request->cityID;
      $weight = 1;
      $courier = 'jne'; // jne, tiki, pos
      $cost = $rajaongkir->cost($origin, $destination, $weight, $courier);
      return response()->json($cost);
    }

$rajaongkir = new Rajaongkir\Domestic('xxxxxxxxx');

'expedito' => 'Expedito* (EXPEDITO)',
'lion' => 'Lion Parcel (LION)',
'ninja' => 'Ninja Xpress (NINJA)',
'idl' => 'IDL Cargo (IDL)',

protected $courier = [
        'basic' => [
            'esl' => 'Eka Sari Lorena (ESL)',
            'pcp' => 'Priority Cargo and Package (PCP)',
            'rpx' => 'RPX Holding (RPX)',
        ],
        'pro' => [
            'cahaya' => 'Cahaya Ekspress Logistik (CAHAYA)',
            'dse' => '21 Express (DSE)',
            'first' => 'First Logistics (FIRST)',
            'indah' => 'Indah Logistic (INDAH)',
            'jet' => 'JET Express (JET)',
            'jnt' => 'J&T Express (J&T)',
            'ncs' => 'Nusantara Card Semesta (NCS)',
            'pahala' => 'Pahala Kencana Express (PAHALA)',
            'pandu' => 'Pandu Logistics (PANDU)',
            'sap' => 'SAP Express (SAP)',
            'sicepat' => 'Sicepat Ekspres (SICEPAT)',
            'slis' => 'Solusi Ekspres (SLIS)',
            'star' => 'Star Cargo (STAR)',
            'wahana' => 'Wahana Prestasi Logistik (WAHANA)',
            'expedito' => 'Expedito* (EXPEDITO)',
            'lion' => 'Lion Parcel (LION)',
            'ninja' => 'Ninja Xpress (NINJA)',
            'idl' => 'IDL Cargo (IDL)',
        ],
        'starter' => [
            'jne' => 'Jalur Nugraha Ekakurir (JNE)',
            'pos' => 'POS Indonesia (POS)',
            'tiki' => 'Citra Van Titipan Kilat (TIKI)',
        ],
    ];