Why doesn't send HttpClient post Request “Parameter” ?

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Post request hit to server successfully, then server check the parameter it says null. Now anybody can say what wrong with me and what should i do..PLEASE HELP ME, THANKS IN ADVANCED.

C#

client = new HttpClient();
                    client.DefaultRequestHeaders.Add("User-Agent", "RingtoneApplication");
                    client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
                    client.BaseAddress = new Uri("http://192.168.137.242/");
                    HttpRequestMessage req = new HttpRequestMessage(HttpMethod.Post, "new_ringtone");              
                    Object[] postDataObject= CreateData();
                    string postDataJson = JsonConvert.SerializeObject(postDataObject);
                    string tokenData = CreateToken(postDataJson, "123");
                    string parameters = "method=getRintoneCategories&data=" + postDataJson + "&token=" + tokenData;
                    string jsonData = JsonConvert.SerializeObject(parameters);
                    req.Content = new StringContent(parameters, Encoding.UTF8, "application/json");
    
                    client.SendAsync(req).ContinueWith(respTask =>
                    {
                        Debug.WriteLine("Response: {0}", respTask.Result);
                    });

Posted 7-Aug-14 8:06am

suzand

Updated 7-Aug-14 10:32am

RaisKazi

v2

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Comments

Sergey Alexandrovich Kryukov 7-Aug-14 14:22pm

What are the values of getRintoneCategories, postDataJson and tokenData. Are any characters which should be escaped? Also, use string.Format instead of repeated '+', or use System.Text.StringBuilder to build string with variable number of parameters.
—SA

suzand 8-Aug-14 4:20am

getRingtoneCategories nothing but a string. if you look at the value of "parameters" i think you can understand easily:
method=getRintoneCategories&data=[{"user":{"Device":"XDeviceEmulator","OSVersion":"80103","FetchTime":"8/8/2014"}},{"Ringtoneapp":"category_id"}]&token=Skrru9+RMVYpY+82vMIacolw8XpOABtKMw7waBXvBm8=

Sergey Alexandrovich Kryukov 8-Aug-14 4:51am

Maybe some of these punctuation characters should be escaped as they confuse the parser of HTTP data; I did not thoroughly examine the structure you show, this is just the idea. To experiment with that and get understanding of the problem, try to send something simpler, such as:
method=getRintoneCategories&data=12345&token=678
Send it and see what happens.
—SA

suzand 8-Aug-14 9:24am

I've tried the way you mentioned but same problem.

Sergey Alexandrovich Kryukov 8-Aug-14 13:36pm

Aha...

suzand 9-Aug-14 9:57am

don't worry,I've solved myself. using the code bellow. client = new HttpClient();
client.DefaultRequestHeaders.Add("User-Agent", "RingtoneApplication");
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
Object[] dataObj = CreateData();
string dataString = JsonConvert.SerializeObject(dataObj);
var values = new List<keyvaluepair<string, string="">>();
values.Add(new KeyValuePair<string, string="">("data", dataString));
values.Add(new KeyValuePair<string, string="">("method", "getRintoneCategories"));
string token = CreateToken(dataString, "secretKey");
values.Add(new KeyValuePair<string, string="">("token", token));
var content = new FormUrlEncodedContent(values);
var response = await client.PostAsync("http://192.168.0.103/new_ringtone/", content);
responseString = await response.Content.ReadAsStringAsync();

Sergey Alexandrovich Kryukov 9-Aug-14 20:48pm

Great, thank you for sending a note.
—SA

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

suzand · Accepted Answer · 2014-08-09T03:58:00

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client = new HttpClient();
                    client.DefaultRequestHeaders.Add("User-Agent", "RingtoneApplication");
                    client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
                    Object[] dataObj = CreateData();
                    string dataString = JsonConvert.SerializeObject(dataObj);
                    var values = new List<KeyValuePair<string, string>>();
                    values.Add(new KeyValuePair<string, string>("data", dataString));
                    values.Add(new KeyValuePair<string, string>("method", "getRintoneCategories"));
                    string token = CreateToken(dataString, "123");
                    values.Add(new KeyValuePair<string, string>("token", token));
                    var content = new FormUrlEncodedContent(values);
                    var response = await client.PostAsync("http://192.168.0.103/new_ringtone/", content);
                    responseString = await response.Content.ReadAsStringAsync();

Why doesn't send HttpClient post Request “Parameter” ?

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Why doesn't send HttpClient post Request “Parameter” ?

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