Helper class to construct a HttpRequest message for easily POSTing data (Asp.net Core)

PostRequestHelper.cs

public class PostRequestHelper
{
	public static HttpRequestMessage Create(String path, Dictionary<string, string> formPostBodyData)
	{
	    var httpRequestMessage = new HttpRequestMessage(HttpMethod.Post, path)
	    {
		    Content = new FormUrlEncodedContent(ToFormPostData(formPostBodyData))
	    };
	    return httpRequestMessage;
	}

	public static List<KeyValuePair<string, string>> ToFormPostData(Dictionary<string, string> formPostBodyData)
	{
		List<KeyValuePair<string, string>> result = new List<KeyValuePair<string, string>>();
		formPostBodyData.Keys.ToList().ForEach(key =>
		{
			result.Add(new KeyValuePair<string, string>(key, formPostBodyData[key]));
		});
		return result;
	}

	public static HttpRequestMessage CreateWithCookiesFromResponse(string path, Dictionary<string, string> formPostBodyData,
	    HttpResponseMessage response)
	{
	    var httpRequestMessage = Create(path, formPostBodyData);
		return CookiesHelper.CopyCookiesFromResponse(httpRequestMessage, response);
	}
}

CookiesHelper mentioned at #25 is https://gist.github.com/stefanhendriks/791391f10a40bde160568cf5ca79cc53