protected async Task <T> RetrieveAsync <T>(IEndpointBuilder builder, GW2RESTConfig config = null)
{
if (!string.IsNullOrEmpty(ApiKey))
{
if (config == null || config.IgnoreAuthentication == false)
{
builder.AddParameter("access_token", ApiKey);
}
}
string json = await retriever.GetJsonAsync(builder);
return(deserializer.Deserialize <T>(json));
}