Cómo recuperar un usuario

// Create a variable to store the desired user once found.
User retrievedUser =  new User();

// Create the filter string for list call. Using this filter will return all
// users with an email address containing the specified value.
String emailFilter = String.format("email:\"%s\"", email-address);

// Configure the list request.
Users.List request =
    service
        .users()
        .list();

// Set the filter for the request.
request.setFilter(emailFilter);

// Create the response and nextPageToken variables.
ListUsersResponse response;
String nextPageToken = null;

do {
  // Create and execute the list request.
  response = request.setPageToken(nextPageToken).execute();

  // Check if response is empty.
  if (response.isEmpty()) {
    break;
  }

  // Iterate over retrieved line items and add to total list.
  for (User user : response.getUsers()) {
    if (user.getEmail() == email-address) {
      retrievedUser = user;
      break;
    }
  }

  // Update the next page token.
  nextPageToken = response.getNextPageToken();

} while (!Strings.isNullOrEmpty(nextPageToken) && retrievedUser.isEmpty());

// Print user information if a user was found.
if (!retrievedUser.isEmpty()) {
  System.out.printf("User %s was found.\n", retrievedUser.getName());
  System.out.printf("User: %s, Display Name: %s, Email: %s\n",
      retrievedUser.getUserId(),
      retrievedUser.getDisplayName(),
      retrievedUser.getEmail());

  AssignedUserRole userRole;

  for (int i = 0; i < retrievedUser.getAssignedUserRoles().size(); i++) {
    userRole = retrievedUser.getAssignedUserRoles().get(i);

    System.out.printf("Assigned User Role %s:\n", i+1);

    if (userRole.getPartnerId() != null) {
      System.out.printf("Partner ID: %s\n", userRole.getPartnerId());
    } else {
      System.out.printf("Advertiser ID: %s\n", userRole.getAdvertiserId());
    }

    System.out.printf("User Role: %s\n", userRole.getUserRole());
  }
} else {
  System.out.printf("No user was found with email address %s", email-address);
}

# Create a variable to store the desired user once found.
retrieved_user = None

# Create the filter string for list call. Using this filter will return all
# users with an email address containing the specified value.
email_filter = 'email:"%s"' % email-address

# Create the page token variable.
next_page_token = ''

while True:
  # Request the users list.
  response = service.users().list(
      filter=email_filter,
      pageToken=next_page_token
  ).execute()

  # Check if the response is empty.
  if not response:
    break

  # Iterate over retrieved users.
  for user in response['users']:
    # Break from the loop if the user is found.
    if user['email'] == email-address
      retrieved_user = user
      break

  # Break out of the loop if there is no next page or if the user has been
  # found.
  if 'nextPageToken' not in response or user is not None:
    break

  # Update the next page token.
  next_page_token = response['nextPageToken']

# Print user information if a user was found.
if retrieved_user:
  print('User %s was found.' % retrieved_user['name'])

  print('User: %s, Display Name: %s, Email: %s'
        % (retrieved_user['userId'],
           retrieved_user['displayName'],
           retrieved_user['email']))

  for index in range(len(retrieved_user['assignedUserRoles'])):
    print('Assigned User Role %s:' % index)

    if 'partnerId' in retrieved_user['assignedUserRoles'][0]:
      print('Partner ID: %s' % retrieved_user['assignedUserRoles'][0]['partnerId'])
    else:
      print('Advertiser ID: %s' %
            retrieved_user['assignedUserRoles'][0]['advertiserId'])

    print('User Role: %s' % retrieved_user['assignedUserRoles'][0]['userRole'])
else:
  print('No user was found with email address %s' % email-address)

// Create a variable to store the desired user once found.
$retrievedUser = null;

// Create the filter string with the desired user email.
$emailFilter = 'email:"' . email-address . '"';

# Create the page token variable.
$nextPageToken = '';

do {
    // Build argument parameters for list call.
    $optParams = array(
        'filter' => $emailFilter,
        'pageToken' => $nextPageToken
    );

    // Call the API, getting the line items with flights ending before the
    // given date.
    $response = $this->service->users->listUsers($optParams);

    // If no line items are returned, break loop.
    if (!empty($response->getUsers())) {
        break;
    }

    foreach ($response->getUsers() as $user) {
        if ($user->getEmail() == email-address) {
            $retrievedUser = $user;
            break;
        }
    }

    $nextPageToken = $response->getNextPageToken();
} while (is_null($retrievedUser) && $nextPageToken);

// Print user information if a user was found.
if (!is_null($retrievedUser)) {
    printf(
        'User %s was found.\nUser: %s, Display Name: %s, Email: %s\n',
        $retrievedUser->getName(),
        $retrievedUser->getUserId(),
        $retrievedUser->getDisplayName(),
        $retrievedUser->getEmail()
    );

    // Print each assigned user role for user.
    foreach ($retrievedUser->getAssignedUserRoles() as $userRole) {
        print("Assigned User Role:\n");
        if ($userRole->getPartnerId()) {
            printf("\tPartner ID: %s\n", $userRole->getPartnerId());
        } else {
            printf("\tAdvertiser ID: %s\n", $userRole->getAdvertiserId());
        }
        printf("\tUser Role: %s\n", $userRole->getUserRole());
    }
} else {
  printf(
      "No user was found with email address %s",
      email-address
  );
}