Calling OOyala player API using C#.

Hello Friends,

Some or any of you might have used OOyala tool for you projects as its one of the best video management tools i have ever seen.

Some days back i have given a task to get ooyala integrated to our project and i decided to do it via their API but all the samples given on site are eighter in PHP or in Ruby but i want things to be done in c# so by following their documentation i have finally got the response from ooyala site.

Here i am showing you two functions and two properties.

1. _params: i have used sorted dictionary because ooyala demands that all parameters should be in acceding order.

2. Query type: specify which API should be called.

3. send_request(): It does the required encoding of parameters by using the secret and partner code and generated the URL by which XML response can be fetched.

4. getXMLResponse(): Get all XML from URL.

#region Properties

        private string PARTNET_CODE = "PARTNET_CODE";
        private string PARTNET_SECRET = "PARTNET_SECRET";


        private string _queryType = string.Empty;
        public string QueryType
        {
            get
            {
                return _queryType;
            }

            set
            {
                _queryType = value;
            }

        }

        private SortedDictionary<string, string> _params;
        public SortedDictionary<string, string> Params
        {

            get
            {
                return _params;
            }
            set
            {
                _params = value;
            }

        }

        #endregion



        #region Public function



        public string getXMLResponse()
        {


            string sUrl = send_request();
            StringBuilder oBuilder = new StringBuilder();
            StringWriter oStringWriter = new StringWriter(oBuilder);
            XmlTextReader oXmlReader = new XmlTextReader(sUrl);
            XmlTextWriter oXmlWriter = new XmlTextWriter(oStringWriter);
            while (oXmlReader.Read())
            {
                oXmlWriter.WriteNode(oXmlReader, true);
            }
            oXmlReader.Close();
            oXmlWriter.Close(); 

            return oBuilder.ToString();


        }


        /// <summary>
        /// Returns the URL for request parameters 
        /// </summary>
        private string send_request()
        {

            string url = "http://api.ooyala.com/partner/" + QueryType + "?pcode=" + PARTNET_CODE;
            foreach (KeyValuePair<string, string> pair in _params)
            {
                PARTNET_SECRET += pair.Key + "=" + pair.Value;
                url += "&" + HttpUtility.UrlEncodeUnicode(pair.Key) + "=" + HttpUtility.UrlEncodeUnicode(pair.Value);
            }
            SHA256Managed sh = new SHA256Managed();
            byte[] request = System.Text.Encoding.ASCII.GetBytes(PARTNET_SECRET);
            sh.Initialize();
            byte[] b4bbuff = sh.ComputeHash(request, 0, request.Length);
            string hashString = System.Text.Encoding.ASCII.GetString(b4bbuff);

            string encryptedRequest = HttpUtility.UrlEncode((Convert.ToBase64String(b4bbuff)).Substring(0, 43));
            url += "&signature=" + encryptedRequest;

            return url;
        }
#endregion

Once you get the XMl response do what ever you want, Deserilise it and use it in c# code or parse it with jQuery choice is yours.

Hope it helps.

Happy coding.

Regards,
U