Actually, what I'm trying to do:

  • Login using contributor-accounts.shutterstock.com (done!)
  • make a post request to send a picture there (problem!)

The wrapper code itself around RestSharp:

 public class Requester { public RestClient Client = new RestClient(); public Requester() { Client.UserAgent = "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0"; } private IRestResponse GetSingle(string url, int timeOutMs) { Client.BaseUrl = new Uri(url); var request = new RestRequest(); request.Timeout = timeOutMs; return Client.Execute(request); } public IRestResponse Post(string url, string filePath) { Client.BaseUrl = new Uri(url); var request = new RestRequest(url, Method.POST); request.AddFile("someFileName", filePath); return Client.Execute(request); } public IRestResponse CorpsPost(string baseUrl, string remoteDomainUrl, string filePath) { Client.BaseUrl = new Uri(baseUrl); var basePage = GetSingle(baseUrl, 6000); var optionsRequest = new RestRequest(baseUrl, Method.OPTIONS); Client.Execute(optionsRequest); //some addtitional code here? var request = new RestRequest(remoteDomainUrl, Method.POST); request.AddFile("someFileName", filePath); return Client.Execute(request); } }

The problem is that sending a file (post) goes to another domain:

https://media-upload.shutterstock.com

and, as a result, the browser automatically uses CORS . Additional information can be read here: tyts

So, question 2:

  1. Is it possible to simulate a CORS request without a browser?

  2. If possible, how to do it with RestShapp? That is, how to fix the CorpsPost () method so that it works in principle?

  • What do you need Rest.Sharp for? Isn't it easier to do standard C # tools? in essence, you only need authorization, and Post Multipart Content. - Digital Core
  • @DigitalCore is not, not easier. The code is 4 times larger and it is less intuitive. I have already tried. And how much will take into account the imitation of CORS do not want to think at all :) - Andrew

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