How to change this code from RestSharp to standard library C# ?

Question

Hi, Please could somebody help me to convert this code to the Visual Studio Standard Library?

It is about sending a file to one url via POST method. Thanks for your help.

string fileName = "C:\\temp\\schedule.csv";
var _client = new RestClient(https://www.domain.com);   // 1st part of URL
_client.Options.MaxTimeout = int.MaxValue;
var reQuest = new RestRequest("api/cust/upload/company", Method.Post);    // 2nd part of URL
reQuest.AddHeader("Content-Type", "text/csv");
reQuest.AddHeader("x-api-key", "24xxxxxxxxB.yyyy");
reQuest.AddFile("csvFile", fileName);
reQuest.AddHeader("Content-Type", "multipart/form-data");
RestResponse reSponse = _client.Execute(reQuest);

Answer 1

it would be something like:

var client = new HttpClient
{
    BaseAddress = new("https://www.domain.com")
};
await using var stream = System.IO.File.OpenRead(fileName);
using var request = new HttpRequestMessage(HttpMethod.Post, "api/cust/upload/company");
using var content = new MultipartFormDataContent
{
   { new StreamContent(stream), "csvFile", Path.GetFileName(fileName) },
};
request.Content = content;
request.Headers.Add("x-api-key", "24xxxxxxxxB.yyyy");
var response = await client.SendAsync(request);

Answer 2

@Paul, thanks for the feedback, you could try to use HttpWebRequest to replace restSharp to upload the file to a Url.

Please refer to the second method Use FileStream with HttpWebRequest from this answer, which has a good example to tell you how to do it.

Best Regards,

Jack

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