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geeting HTTP Post BAD request converting CURL code to C# HTTP POST

Can someone please assist need to do post to url working fine on curl but not throufh C# HTTPPOST..
Here Curl code :
curl -H "Authorization: Basic ZWRpdG9yOnhYTXEgM09QNyB4WjlkIHpET3IgOVNhTiB1S3lx=="-H "description: {"path":"/shows/sheriffs-el-dorado-county/2020-2021-season/formats/","title":"HD-SEIN860","date":"2021-02-08","description":"STRIP / HD-SEIN860 / Airdate 02-10-2021"}" -X POST --data-binary #"C:/Users/sahithi.illindala/Downloads/HD-OZMR13091.pdf" http://ersyndication.wpengine.com/library/wp-json/wp/v2/media
Here is C# HTTPClient pOSt
using (var req = new HttpRequestMessage(new HttpMethod("POST"), "http://ersyndication.wpengine.com/library/wp-json/wp/v2/media"))
{
req.Headers.TryAddWithoutValidation("Authorization", "Basic ZWRpdG9yOnhYTXEgM09QNyB4WjlkIHpET3IgOVNhTiB1S3lx==");
//hc.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("attachment; filename = HD - SEIN860.pdf"));
req.Headers.TryAddWithoutValidation("Content-Disposition", "attachment; filename=HD-SEIN860.pdf");
req.Headers.TryAddWithoutValidation("description", "{\"path\":\"/shows/sheriffs-el-dorado-county/2020-2021-season/formats/\",\"title\":\"HD-SEIN860\",\"date\":\"2021-02-08\",\"description\":\"SI1234 / HD-SEIN860 / Airdate 02-10-2021\"}");
req.Content = new StringContent(File.ReadAllText("path"));
req.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/x-www-form-urlencoded");
var response = await httpClient.SendAsync(req).ConfigureAwait(false);
var JsonResults = await response.Content.ReadAsStringAsync();

'invalid_grant' error on API call with RestSharp

I need to convert that curl request to c#. Im using RestSharp. curl request:
> curl -X POST -i https://gw.api.alphabank.eu/sandbox/auth/token \
-u "{{client_id}}:{{client_secret}}" \
-d "grant_type=client_credentials&scope=account-info-setup"
I tried the following code but I end up with 'invalid_grant' error as a response.
Any ideas what i'm doing wrong?
My code:
var client = new RestClient(url);
var request = new RestRequest();
request.Method = Method.POST;
client.Authenticator = new HttpBasicAuthenticator(ABclientID, ABclientSecret);
request.AddParameter("grant_type", "client_credentials");
request.AddParameter("scope", "account-info-setup");
request.OnBeforeDeserialization = resp => { resp.ContentType = "application/x-www-form-urlencoded"; };
IRestResponse response = client.Execute(request);

this sample code is generated by Postman and it's working for my api which accepts application/x-www-form-urlencoded, can you add your parameters like this? Or create and make your request works on Postman and generate to C#-RestSharp it's usually works for me with minor changes.
var client = new RestClient("url");
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddParameter("userId", "1234");
request.AddParameter("count", "5");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

Turns out "invalid_grant" meant wrong credentials. I was giving wrong client-secret.
Request was succesfull after correcting the client_secret.

Upload image from mobile app to API with multipart/form-data

I have this API where I receive an image to save it in a storage server. I've been testing the functionality in postman and works perfectly fine. But when it comes to the mobile app it does not send the image.
here you can see the Postman POST request
the code for the xamarin app is the next
var content = new MultipartFormDataContent();
var stream = File.OpenRead(_mediaFile.Path);
var streamcontent = new StreamContent(stream);
content.Add(streamcontent, "picture");
var client = new HttpClient();
HttpResponseMessage response = await cliente.PostAsync($"http://localhost:200/api/.../picture", content);
string result = response.Content.ReadAsStringAsync().Result;
Response responseData = JsonConvert.DeserializeObject<Response>(result);
if (response.IsSuccessStatusCode)
{
await Application.Current.MainPage.DisplayAlert("Correcto", "Imagen subida Correctamentel!", "OK");
_mediaFile = null;
terminado.IsEnabled = true;
}
else
{
terminado.IsEnabled = true;
await Application.Current.MainPage.DisplayAlert("Error", "Opps algo ocuirrio mal!", "OK"); }
As you can see in the postman the key picture receives the image name. I tried it also with curl and it works:
curl -X POST "http://localhost:200/api/.../picture" -H "accept: application/json" -H "Content-Type: multipart/form-data" -F "picture=#version1.jpeg;type=image/jpeg"

I've managed it to work, but using RestSharp library instead of HttpClient:
var client = new RestClient("192.168.0.2"); //the ip of your REST API
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "multipart/form-data"); // I'm using multipart form data
request.AddHeader("Authorization", "Bearer eyJ0eXAiOiJKV1QiLC"); // using JWT for auth
request.AddFile("pictureField", "/path/to/file"); //the path depends on which device you're using
IRestResponse response = client.Execute(request);
Pretty much straigt forward and works perfectly fine. Also, the "pictureField" depends on the name of the field the API requires, and the path to file should not be hardcoded. It should be given depending on where in the device the choosen image is.

Browserstack restSharp cURL PUT request conversion

I am trying to convert the following cURL command to C# using restSharp
so that I can mark my automated Browserstack tests passed or failed.
curl -u "user:password" -X PUT -H "Content-Type: application/json" -d "{\"status\":\"<new-status>\", \"reason\":\"<reason text>\"}" https://www.browserstack.com/automate/sessions/<session-id>.json
Please note I am very new to C# I have the following code that currently returns an empty json response, I know I am on the right path as changing the request method to POST returns details (as expected) for my session/test:
private string markTestPassedorFail(string sesID)
{
var Client = new RestClient();
var Request = new RestRequest();
string sResponse = "";
Client.BaseUrl = new Uri(CapConf.BROWSERSTACK_SESSIONS_URL);
Client.Authenticator = new HttpBasicAuthenticator(CapConf.BROWSERSTACK_USER_NAME, CapConf.BROWSERSTACK_KEY_PASS);
Request.Resource = sesID + ".json";
Request.Method = Method.PUT;
Request.AddHeader("Content-Type", "application/json");
Request.AddJsonBody("{\"status\":\"failed\", \"reason\":\"failed\"}");
try
{
IRestResponse response = Client.Execute(Request);
sResponse = response.Content;
}
catch (Exception ex)
{
Console.WriteLine("Error Marking Test Passed or Fail : \n" + ex.Message);
}
return sResponse;
}

Have you tried the sample code snippet shared in their documentation here - https://www.browserstack.com/automate/c-sharp
I just pulled up bits of the code snippet there and was able to setup a sample test run, fetch the session ID and later update the session status via REST API.
Sample test -
https://www.browserstack.com/automate/c-sharp#getting-started
Session ID -
https://www.browserstack.com/automate/c-sharp#session-id
Session status update via REST API -
https://www.browserstack.com/automate/c-sharp#rest-api
Refer to the following gist:
https://gist.github.com/ashwingonsalves/56d7724671054bf623081bdcb30d40b8

Sending HTTP post request in C# to Microsoft Bing speech API

I am trying to send a HTTP post request to microsoft Bing speech API o transcribe an audio file. First we need to send a post request to get an "access token" as a response, then this token is used (as authorisation" in another post request to upload the actual file and get the transcription in the response. I can send the first post request and successfully get the access token, but I am not able to get a reasonable response for my second post request. I follow this page: https://www.microsoft.com/cognitive-services/en-us/speech-api/documentation/api-reference-rest/bingvoicerecognition
This is the second post request:
Guid requestId = Guid.NewGuid();
var Uri = #"https://speech.platform.bing.com/recognize?version=3.0&requestid=" + requestId.ToString() + #"&appID=D4D52672-91D7-4C74-8AD8-42B1D981415A&format=json&locale=en-US&device.os=Windows%20OS&scenarios=ulm&instanceid=f1efbd27-25fd-4212-9332-77cd63176112";
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, Uri);
request.Headers.Add("Authorization", String.Format("Bearer {0}", accessToken));
request.Headers.TryAddWithoutValidation("Content-Type", #"audio/wav; samplerate=16000");
MemoryStream ms = new MemoryStream();
using (var fs = System.IO.File.OpenRead("audio.wav"))
{
byte[] buffer = new byte[1024 * 8];
while (fs.Read(buffer, 0, buffer.Length) > 0)
{
ms.Write(buffer, 0, buffer.Length);
}
fs.Close();
}
ms.Seek(0, SeekOrigin.Begin);
HttpContent _Body = new StreamContent(ms);
request.Content = _Body;
var client2 = new HttpClient();
var response2 = client2.SendAsync(request);
I guess the problem is where I set the "Content-Type" for the header. The reason is when I debug, I don't see this property being set in the Header of the request. In fact, there is no Content-Type in the header. Any help would be appreciated. This page, which talks about the equivalent curl command, can also be helpful: https://social.msdn.microsoft.com/Forums/en-US/ad73e4f1-e576-4080-9fe7-060cc2f583ca/microsoft-bing-voice-recognition-api-authorization-404resource-not-found?forum=SpeechService

Content-Type is a content related header. The following code works for me:
public async Task<string> SendRequestAsync(string url, string bearerToken, string contentType, string fileName)
{
var content = new StreamContent(File.OpenRead(fileName));
content.Headers.TryAddWithoutValidation("Content-Type", contentType);
using (var httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", bearerToken);
var response = await httpClient.PostAsync(url, content);
return await response.Content.ReadAsStringAsync();
}
}
The invocation in your case (if you work in synchronous context):
var result = SendRequestAsync(Uri, accessToken, "audio/wav; samplerate=16000", "audio.wav").Result;

You can send the following header instead, to not have to do 2 requests because of the token.
If you want to not have to login each time instead of using the 'Authorization': 'Bearer {TOKEN}' header you could use the 'Ocp-Apim-Subscription-Key': '{YOUR AZURE TOKEN}' in order to not have to make a authorisation factory or more requests than necessary to the application and make it faster
NOTE: {TOKEN} is a JWT token like
eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzY29wZSI6Imh0dHBzOi8vc3BlZWNoLnBsYXRmb3JtLmJpbmcuY29tIiwic3Vic2NyaXB0aW9uLWlkIjoiZmFhZTNlYTkxNmI1NGMxZWEyODY4MDlhYTg3ZWE1MmUiLCJwcm9kdWN0LWlkIjoiQmluZy5TcGVlY2guUHJldmlldyIsImNvZ25pdGl2ZS1zZXJ2aWNlcy1lbmRwb2ludCI6Imh0dHBzOi8vYXBpLmNvZ25pdGl2ZS5taWNyb3NvZnQuY29tL2ludGVybmFsL3YxLjAvIiwiYXp1cmUtcmVzb3VyY2UtaWQiOiIiLCJpc3MiOiJ1cm46bXMuY29nbml0aXZlc2VydmljZXMiLCJhdWQiOiJ1cm46bXMuc3BlZWNoIiwiZXhwIjoxNTAwODgxNjIzfQ.KdlCrIJ_H0jxs1yyeyYxYR7ucbLuFKT__ep7lGJmGbU
NOTE2: {YOUR AZURE TOKEN} is like d5kals90935b40809dc6k38533c21e85 and you find it here
The request would look like this:
curl -v -X POST "https://speech.platform.bing.com/speech/recognition/interactive/cognitiveservices/v1?language=es-ES&locale=es-ES&format=simple&requestid=req_id" -H "Ocp-Apim-Subscription-Key: d5kals90935b40809dc6k38533c21e85" -H 'Transfer-Encoding: chunked' -H 'Content-type: audio/wav; codec="audio/pcm"; samplerate=8000' --data-binary #"{BINAYFILE}.wav"