server.route({
   path: '/api/companies/{id}',
   method: 'PUT',
   handler(req, reply) {

       if (!req.params.id) {
           return reply({err: 'id is required param'}).code(400);
       }
       let attributes = {};

       if (req.payload.name) {
           attributes.name = req.payload.name;
       }
       if (req.payload.city) {
           attributes.city = req.payload.city;
       }
       if (req.payload.address) {
           attributes.address = req.payload.address;
       }
       Company.findByIdAndUpdate(
             req.params.id,
              attributes,
             {new: true},
             (err, company) => {
           if (err) {
               return reply(err).code(500);
           }
           return reply.response(company);
       })
   }
});