C ＃ general interface call

Project scenario ：

Tips ：C# General interface call

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Solution ：

Tips ： Get token first , Then call the data interface ：

/// <summary>
        ///  obtain Token value 
        /// </summary>
        /// <returns>token value </returns>
        public string InterfaceToken()
        {
            HttpWebRequest request = HttpWebRequest.CreateHttp("http:// host /token?client_id=xxxxxx";);
            request.ContentType = "application/json";//body data type 
            request.Method = "GET";
            var response = (HttpWebResponse)request.GetResponse();
            var resuleJson = string.Empty;// Back to json data 
            using (Stream stream = response.GetResponseStream())
            {
                using (StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("UTF-8")))
                {
                    resuleJson = reader.ReadToEnd();
                }
            }
            TokenData tokenData = new TokenData();
            tokenData = JsonConvert.DeserializeObject<TokenData>(resuleJson);
            var aaa= JsonConvert.DeserializeObject(resuleJson);
            return tokenData.access_token;
        }

public class TokenData 
    { 
        public string access_token { get; set; }
    }

Call interface ：

/// <summary>
        ///  Interface data acquisition 
        /// </summary>
        /// <param name="citgsOperation"> Item group </param>
        /// <param name="cpclOperation"> Category code </param>
        /// <param name="mitm"> Material code </param>
        public void InterfaceData(string mitm = "")
        {

            string citgs = "[]";//citgs   Item group  false
            int citgsOperation = 0;//citgsOperation Material group filtering  true     0
            int cpclOperation = 0;//cpclOperation  Classification code filtering  true      0
            string cpcls = "[]";//cpcls Category code  false  
            string level = "1";//level Need to expand BOM The number of layers  false
            //string mitm = "";//mitm Material code  true
            string queryDate = "";//queryDate Query time  false

            string token = InterfaceToken();
            string data = "{\"citgs\": " + citgs + ",\"citgsOperation\":" + citgsOperation + ",\"cpclOperation\": " + cpclOperation + ",\"cpcls\":" + cpcls + ",\"level\":" + level + ",\"mitm\":\" " + mitm + "\",\"queryDate\": \"" + queryDate + "\"}";
            
            HttpWebRequest request = HttpWebRequest.CreateHttp("http:// host ";);
            request.ContentType = "application/json";//body data type 
            request.Headers.Add("x-authorization", token);
            request.Method = "POST";
            using (var postStream = new StreamWriter(request.GetRequestStream()))
            {
                postStream.Write(data);
            }
            var response = (HttpWebResponse)request.GetResponse();
            var resuleJson = string.Empty;// Back to json data 
            using (Stream stream = response.GetResponseStream())
            {
                using (StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("UTF-8")))
                {
                    resuleJson = reader.ReadToEnd();
                }
            }
        }