public async Task <FdaLabelSearchResults> SearchAsync(FdaLabelSearchOptions fdaLabelSearchOptions, PagingSortingOptions pagingOptions = null, string joiner = "AND")
{
if (pagingOptions == null)
{
pagingOptions = new PagingSortingOptions();
}
var parameterDictionary = new ParameterDictionary
{
{ "search", fdaLabelSearchOptions.ToQuery(joiner) }
};
if (pagingOptions.Limit != 0)
{
parameterDictionary.Add("limit", pagingOptions.Limit.ToString());
}
if (pagingOptions.Skip != 0)
{
parameterDictionary.Add("skip", pagingOptions.Skip.ToString());
}
if (!string.IsNullOrEmpty(_apiKey))
{
parameterDictionary.Add("api_key", _apiKey);
}
var json = await GetAsync($"/drug/label.json?{parameterDictionary.ToQueryString()}");
return(FdaLabelSearchResults.FromJson(json));
}
/// <summary>
///
/// </summary>
/// <param name="fdaLabelSearchOptions"></param>
/// <param name="joiner">Supports "AND" or "OR"</param>
/// <returns></returns>
public static string ToQuery(this FdaLabelSearchOptions fdaLabelSearchOptions, string joiner = "AND") //todo create complex query search
{
var search = new StringBuilder();
fdaLabelSearchOptions.GetType().GetProperties().ToList().ForEach(x =>
{
var value = x.GetValue(fdaLabelSearchOptions);
if (value == null)
{
return;
}
var propertyAttribute = (JsonPropertyAttribute)x.GetCustomAttributes().FirstOrDefault(z => (Type)z.TypeId == typeof(JsonPropertyAttribute));
if (propertyAttribute == null)
{
return;
}
if (value.GetType() == typeof(List <string>))
{
search.Append(
string.Join("+", (value as List <string> ?? new List <string>())
.Select(y => $"{propertyAttribute.PropertyName}:\"{y}\"")
)
);
}
else
{
search.Append($"{propertyAttribute.PropertyName}:\"{value}\"");
}
search.Append($"+{joiner}+");
});
return(search.ToString().Trim($"+{joiner}+".ToCharArray()));
}