Services
VideoIndexerService.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using Microsoft.ConferenceBuddy.Common.Models;
using Microsoft.ConferenceBuddy.Common.Utilities;
namespace Microsoft.ConferenceBuddy.Core.Services
{
public clast VideoIndexerService : ServiceBase
{
///
/// The constructor of the Video Indexer Service
///
public VideoIndexerService(string serviceUrl, string subscriptionKey)
{
if (string.IsNullOrEmpty(serviceUrl) == true)
{
throw new ArgumentNullException("Service url is not initialized.");
}
if (string.IsNullOrEmpty(subscriptionKey) == true)
{
throw new ArgumentNullException("Subscription key is not initialized.");
}
this.BaseServiceUrl = serviceUrl;
this.RequestHeaders = new Dictionary()
{
{ this.HEADER_SUB_KEY, subscriptionKey }
};
}
public async Task SearchAsync(string query = "", string face = "")
{
if (string.IsNullOrEmpty(query) == true && string.IsNullOrEmpty(face) == true)
{
return default(VideoIndexerSearchResult);
}
Dictionary queryParams = new Dictionary()
{
{ "query", WebUtility.UrlEncode(query) },
{ "face", WebUtility.UrlEncode(face) },
};
IEnumerable queryString = queryParams
.Where(p => string.IsNullOrEmpty(p.Value) == false)
.Select(p => p.Key + "=" + p.Value);
string searchQuery = queryString.Count() == 1 ? queryString.FirstOrDefault() : string.Join("&", queryString);
// Get request uri
string searchUrl = this.BaseServiceUrl + "?" + searchQuery;
Uri requestUri = new Uri(searchUrl);
// Get response
VideoIndexerSearchResult result = await HttpClientUtility.GetAsync(requestUri, this.RequestHeaders);
return result;
}
}
}