Is it possible to use the $count directive with $filter to count number of members (rather than contacts)? Here's my google apps script call below. I get this error:

Request failed for https://api.wildapricot.org/v2/accounts/210450/contacts?$count&$filter='Member%20eq%20true' returned code 400. Truncated server response: {"code":"Search","message":"Failed to build expression tree. Multiple expression roots: Argument:Member eq true"} (use muteHttpExceptions option to examine full response)

I think I may have to iterate through a get all contacts call instead and count them manually, but I am not sure how to do that.

function getMemberCount()
{

Logger.clear();

var urls = urlBuilder();
var ui = SpreadsheetApp.getUi();

var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();

var token = getToken(ui, urls.getAuthServiceUrl());
var accountId = getDataFromApi(urls.getAccountsListUrl(), token)[0].Id;
var contactFields = getDataFromApi(urls.getContactFieldsUrl(accountId), token);

// Example call: '?$async=false&simpleQuery=John'
// '$async' => 'false', // execute request synchronously
// '$top' => 10, // limit result set to 10 records
// '$filter' => 'Member eq true', // filter only members
// '$select' => 'First name, Last name'

// Count members
// GET {baseAPIaddress}/v2/Accounts/{accountID}/Contacts?$count

var url = urls.getContactsListUrl(accountId) + '?$count&$filter=\'Member eq true\'';

var result = getDataFromApi( url, token, "GET");
ui.alert('Number of Contacts: ' + result.Count);
}

Happy to contribute my resulting new code for use in the API documentation (will submit to GitHub once I get more of it working).