Contrary to RestSharp docs, request.AddFile does not accept FileParameter as argument for AddFile. C-CodePudding

The

Since the overload restRequest.AddFile((FileParameter)file); is not there in the newer version of restsharp, you can define your own extension method like this:

using RestSharp; public static class RestRequestExtensions { public static RestRequest AddFile(this RestRequest req, FileParameter f) { return req.AddFile(f.Name, GetBytes(f.GetFile()), f.FileName, f.ContentType); } private static byte[] GetBytes(Stream input) { byte[] buffer = new byte[16 * 1024]; using (MemoryStream ms = new MemoryStream()) { int read; while ((read = input.Read(buffer, 0, buffer.Length)) > 0) { ms.Write(buffer, 0, read); } return ms.ToArray(); } } }

Another way:

public static class RestRequestExtensions { public static RestRequest AddFile(this RestRequest req, FileParameter f) { return req.AddFile(f.Name, ()=>f.GetFile(), f.FileName, f.ContentType); } }

CodePudding user response：

I just came across this issue as well (restsharp 108.0.1) while working with an api integration. I was able to get around the issue by adding my file into the request body.

byte[] fileBytes = File.ReadAllBytes({your filePath}); //request setup... restRequest.AddBody(fileBytes, {your fileType});