/// <summary>
/// Turn the value into a descriptive string.
/// </summary>
/// <returns>String value as defined in the API.</returns>
public static string ToDescriptionString(this EventsScroll value)
{
DescriptionAttribute[] attributes = (DescriptionAttribute[])value
.GetType()
.GetField(value.ToString())
.GetCustomAttributes(typeof(DescriptionAttribute), false);
return(attributes.Length > 0 ? attributes[0].Description : string.Empty);
}
public async Task <IEnumerable <MeetupEventModel> > GetEvents(
string urlName, EventsScroll scroll = EventsScroll.Undefined)
{
IEnumerable <MeetupEventModel> Default() => new List <MeetupEventModel>(0);
if (string.IsNullOrWhiteSpace(urlName))
{
Logger.LogError($"Null or whitespace urlname, aborting API call.");
return(Default());
}
NameValueCollection BuildQueryString(NameValueCollection query)
{
var collection = HttpUtility.ParseQueryString(string.Empty);
foreach (var key in query.Cast <string>().Where(key => !string.IsNullOrEmpty(query[key])))
{
collection[key] = query[key];
}
return(collection);
}
var queryString = BuildQueryString(new NameValueCollection {
{ "photo-host", "secure" },
{ "scroll", scroll.ToDescriptionString() },
{ "desc", "true" } // Hack; this param results in more returned events and in correct order.
});
var response = await HttpClient.GetAsync($"/{HttpUtility.UrlEncode(urlName)}/events?{queryString}");
if (!response.IsSuccessStatusCode)
{
Logger.LogError($"Unexpected meetup API response; status code {response.StatusCode}.");
return(Default());
}
try
{
return(await response.Content.ReadAsAsync <List <MeetupEventModel> >());
}
catch (Exception e)
{
Logger.LogError("Unable to deserialize API response.", e);
return(Default());
}
}
