private void BuildQueryStringHelper(Dictionary <string, string> dict, FeedFilter filter)
{
if (filter == null)
{
return;
}
var feedFilterType = filter.GetType().GetTypeInfo();
foreach (var property in feedFilterType.DeclaredProperties)
{
object value = property.GetValue(filter);
if (value != null)
{
var valueFriendlyStringAttribute = value.GetEnumAttribute <FriendlyStringAttribute>();
if (valueFriendlyStringAttribute != null)
{
value = valueFriendlyStringAttribute.Value;
}
var keyString = property.GetCustomAttribute <FriendlyStringAttribute>().Value;
dict.Add(keyString, value.ToString());
}
}
}
private object BuildQueryString(FeedFilter filters)
{
var dict = new Dictionary <string, string>();
BuildQueryStringHelper(dict, _defaultFilters);
BuildQueryStringHelper(dict, filters);
return("?(" + string.Join(") AND (", dict.Select(kvp => $"{kvp.Key}={kvp.Value}")) + ")");
}
public async Task <HitDataItem <TDataType> > GetByIdAsync(string id)
{
var filter = new FeedFilter {
Id = id
};
var resp = await GetAsyncRaw(filter);
return(resp.Hits.Items.FirstOrDefault());
}
private async Task <TResponseType> GetAsyncRaw(FeedFilter filters)
{
var queryStr = BuildQueryString(filters);
var uri = new Uri(_endpoint + queryStr);
using (HttpClient client = new HttpClient())
{
client.DefaultRequestHeaders.Add("Accept", "application/json");
var json = await client.GetStringAsync(uri);
var result = default(TResponseType);
if (!string.IsNullOrWhiteSpace(json))
{
result = JsonConvert.DeserializeObject <TResponseType>(json);
}
return(result);
}
}
public async Task <IEnumerable <HitDataItem <TDataType> > > GetAsync(FeedFilter filters = null)
{
var resp = await GetAsyncRaw(filters);
return(resp.Hits.Items.ToList());
}
public FeedClient(string endpoint, FeedFilter defaultFilters = null)
{
_endpoint = endpoint;
_defaultFilters = defaultFilters;
}
