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C# how to consume rest web service

I am having a problem when I try using a rest web service in C#.
When I try via Fiddler it works Ok.
When I try via HTML/Ajax, it works Ok, as well.
When I try via C# (Console Application) I get an error.
This image is captured in fiddler. It is what I get when I try via ajax
this image is also captured in fiddler. It is what I get when I try via C#
As you can see, the JSON field is empty.
This is my C# code
string json = JsonConvert.SerializeObject(abc);
HttpClient client = new HttpClient();
client.BaseAddress = new Uri("MyURL"); //==> I am filling it correctly
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/json"));
var response = client.PostAsJsonAsync("MyMethod", json).Result; //==> I am filling my method correctly
But I have tried several others and always getting the same problem. (the code bellow is another one I tried)
var requisicaoWeb = WebRequest.CreateHttp("MyURL");
requisicaoWeb.Method = "POST";
requisicaoWeb.ContentType = "application/json";
requisicaoWeb.ContentLength = dados.Length;
requisicaoWeb.UserAgent = "Console app";
requisicaoWeb.Accept = "Accept:application/json,text/javascript,*/*;q=0.01";
//precisamos escrever os dados post para o stream
using (var stream = requisicaoWeb.GetRequestStream())
{
stream.Write(MyJson, 0, dados.Length);
stream.Close();
}
//ler e exibir a resposta
using (var resposta = requisicaoWeb.GetResponse())
{
var streamDados = resposta.GetResponseStream();
StreamReader reader = new StreamReader(streamDados);
object objResponse = reader.ReadToEnd();
var post = objResponse.ToString();//JsonConvert.DeserializeObject<Post>(objResponse.ToString());
streamDados.Close();
resposta.Close();
}
Everything I try in C#, the JSON field on Fiddler is always empty and the "syntax View" description is always "Request Invalid".

Try it's;
public static string HttpPost(string URI, string Parameters)
{
System.Net.WebRequest req = System.Net.WebRequest.Create(URI);
req.ContentType = "application/json; charset=utf-8";
req.Method = "POST";
req.Timeout = 600000;
byte[] bytes = System.Text.Encoding.ASCII.GetBytes(Parameters);
req.ContentLength = bytes.Length;
System.IO.Stream os = req.GetRequestStream();
os.Write(bytes, 0, bytes.Length);
os.Close();
System.Net.WebResponse resp = req.GetResponse();
if (resp == null)
return null;
System.IO.StreamReader sr = new System.IO.StreamReader(resp.GetResponseStream());
return sr.ReadToEnd().Trim();
}

I have just figure it out.
If anybody else has the same problem, here is the answer
string json = JsonConvert.SerializeObject(abc);
HttpClient client = new HttpClient();
client.BaseAddress = new Uri("MyURL"); //==> I am filling it correctly
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/json"));
var stringContent = new StringContent(JsonConvert.SerializeObject(abc), Encoding.UTF8, "application/json");
var response = client.PostAsync("MyURL", stringContent).Result; //==> I am filling my method correctly

Cannot download a pdf with RestSharp?

I have been struggling to download a simple pdf hosted online using restsharp. I have been playing around with the code for over an hour and all I get are null object results.
The file downloads easily in POSTMAN using a GET and no content header set but still what gives?
Below is the noddy sandbox test I have been experimenting around with:
[TestFixture]
public class Sandbox
{
[Test]
public void Test()
{
var uri = "https://www.nlm.nih.gov/mesh/2018/download/2018NewMeShHeadings.pdf";
var client = new RestClient();
var request = new RestRequest(uri, Method.GET);
//request.AddHeader("Content-Type", "application/octet-stream");
byte[] response = client.DownloadData(request);
File.WriteAllBytes(#"C:\temp\1.pdf", response);
}
}
Update: Return a Stream
var baseUri = "https://www.nlm.nih.gov/mesh/2018/download/";
var client = new RestClient(baseUri);
var request = new RestRequest("2018NewMeShHeadings.pdf", Method.GET);
request.AddHeader("Content-Type", "application/octet-stream");
var tempFile = Path.GetTempFileName();
var stream = File.Create(tempFile, 1024, FileOptions.DeleteOnClose);
request.ResponseWriter = responseStream => responseStream.CopyTo(stream);
var response = client.DownloadData(request);
The stream is now populated with the downloaded data.

Try this:
var uri = "https://www.nlm.nih.gov/mesh/2018/download/";
var client = new RestClient(uri);
var request = new RestRequest("2018NewMeShHeadings.pdf", Method.GET);
//request.AddHeader("Content-Type", "application/octet-stream");
byte[] response = client.DownloadData(request);

Upload to Onedrive with C# using Graph API

I am trying to upload a file to Onedrive using RestSharp and Graph API. Basically I want to upload an Excel file. However, even the file saves, there is problem with the content. I am using:
https://graph.microsoft.io/en-us/docs/api-reference/v1.0/api/item_uploadcontent
using the code:
string newToken = "bearer ourtoken";
var client = new RestClient("https://xxx-my.sharepoint.com/_api/v2.0/"+ oneDrivePath + Path.GetFileName(filePathWithName) + ":/content");
var request = new RestRequest(Method.PUT);
request.RequestFormat = DataFormat.Json;
request.AddHeader("Authorization", newToken);
request.AddHeader("Content-Type", "text/plain");
byte[] sContents;
FileInfo fi = new FileInfo(filePathWithName);
// Disk
FileStream fs = new FileStream(filePathWithName, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(fs);
sContents = br.ReadBytes((int)fi.Length);
br.Close();
fs.Close();
request.AddBody(Convert.ToBase64String(sContents));
var response = client.Execute(request);
This uploads the file however the XLSX file becomes corrupted.
Basically I need to figure out how to pass the stream to the RestSharp request.

Solved it by changing RestClient to HttpClient.
string newToken = "bearer mytoken"
using (var client = new HttpClient())
{
var url = "https://xxx-my.sharepoint.com/_api/v2.0/" + oneDrivePath + Path.GetFileName(filePathWithName) + ":/content";
client.DefaultRequestHeaders.Add("Authorization", newToken);
byte[] sContents = File.ReadAllBytes(filePathWithName);
var content = new ByteArrayContent(sContents);
var response = client.PutAsync(url, content).Result;
return response;
}

Why am I getting this 401 unauthorized error while using Hammock with the Tumblr API to retrieve likes?

Here is the code that I am using:
public static void FetchXML()
{
_url = new Uri("http://api.tumblr.com/v2/blog/" + _username + ".tumblr.com/likes?api_key=REc3Z6l4ZYss11a8lX6KKje0X8Hsi9U77SyaPbQrOBBCGJGA6D");
var client = new RestClient();
client.Authority = _url.ToString();
var request = new RestRequest();
request.AddParameter("limit", "20");
request.AddParameter("offset", _offset.ToString());
var response = client.Request(request);
var content = response.Content.ToString();
var parsedResponse = JsonParser.FromJson(content);
}
If I take the Uri value and paste it into my browser (using a valid Tumblr username) I'm getting the correct Json, but in my application the content of response is:
"{\"meta\":{\"status\":401,\"msg\":\"Unauthorized\"},\"response\":[]}"
Anyone have any idea why this is? According to the Tumblr API
retrieving likes should only need the API key, which I am providing.

Hi you can use the below code to get the response.
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL);
request.Method = "GET";
request.ContentType = "Application/json";
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream receive = response.GetResponseStream();
StreamReader reader = new StreamReader(receive, Encoding.UTF8);
string respond = reader.ReadToEnd();

Set a body for WebClient when making a Post Request

So I have an api that I want to call to. The first call is an ahoy call and in the body of the request I need to send the ship_type, piratename and my piratepass. I then want to read the response which has my treasure booty that i will use for later.
I'm able to do this with web request. but i feel like there is a better way to do it with webclient.
(way I currently do it in webrequest)
//Credentials for the Pirate api
string piratename = "IvanTheTerrible";
string piratepass= "YARRRRRRRR";
string URI = "https://www.PiratesSuperSecretHQ.com/sandyShores/api/respectmyauthority";
WebRequest wr = WebRequest.Create(URI);
wr.Method = "POST";
wr.ContentType = "application/x-www-form-urlencoded";
string bodyData = "ship_type=BattleCruiser&piratename=" + piratename + "&piratepass=" + piratepass;
ASCIIEncoding encoder = new ASCIIEncoding();
byte[] byte1 = encoder.GetBytes(bodyData);
wr.ContentLength = byte1.Length;
//writes the body to the request
Stream newStream = wr.GetRequestStream();
newStream.Write(byte1, 0, byte1.Length);
newStream.Close();
WebResponse wrep = wr.GetResponse();
string result;
using (var reader = new StreamReader(wrep.GetResponseStream()))
{
result = reader.ReadToEnd(); // do something fun...
}
Thanks in advance either way.

You can do with this simple code
Uri uri = new Uri("yourUri");
string data = "yourData";
WebClient client = new WebClient();
var result = client.UploadString(uri, data);
Remember that you can use UploadStringTaskAsync if you want to be async

You can try like below as well:
public String wcPost(){
Map<String, String> bodyMap = new HashMap();
bodyMap.put("key1","value1");
WebClient client = WebClient.builder()
.baseUrl("domainURL")
.build();
String responseSpec = client.post()
.uri("URI")
.headers(h -> h.setBearerAuth("token if any"))
.body(BodyInserters.fromValue(bodyMap))
.exchange()
.flatMap(clientResponse -> {
if (clientResponse.statusCode().is5xxServerError()) {
clientResponse.body((clientHttpResponse, context) -> {
return clientHttpResponse.getBody();
});
return clientResponse.bodyToMono(String.class);
}
else
return clientResponse.bodyToMono(String.class);
})
.block();
return responseSpec;
}