jsonパース

• クラス

  public static void insertRandomUsers() {
  HttpRequest request = new HttpRequest();
  request.setEndpoint('https://randomuser.me/api/?results=10&format=JSON&nat=us');
  request.setMethod('GET');
  
  Http http = new Http();
  HttpResponse response = new HttpResponse();
  response = http.send(request);
  
  Map<String, Object> requestBody = new Map<String, Object>();
  Integer statusCode = response.getStatusCode();
  if (statusCode == 200) {
      requestBody = (Map<String, Object>)JSON.deserializeUntyped(response.getBody());
  } else {
      System.debug('Error : ' + statusCode + ' => ' + response.getBody());
      return;
  }
  
  List<Lead> leadList = new List<Lead>();
  for (Object result : (List<Object>)requestBody.get('results')) {
      Map<String, Object> user = (Map<String, Object>)result;
      Map<String, Object> name = (Map<String, Object>)user.get('name');
  
      Lead l = new Lead();
      l.firstName = String.valueOf(name.get('first'));
      l.lastName = String.valueOf(name.get('last'));
      l.phone = String.valueOf(user.get('phone'));
      l.Company = String.valueOf(user.get('email'));
  
      leadList.add(l);
  }
  insert leadList;
  }