private bool RefreshToken()
{
var successful = false;
var client = new RestClient(Constants.Spotify.AccountsBaseApi);
var request = new RestRequest("token", Method.POST);
request.AddHeader("content-type", "application/x-www-form-urlencoded");
request.AddParameter("application/x-www-form-urlencoded", $"grant_type=refresh_token&refresh_token={credentials.refreshToken}", ParameterType.RequestBody);
request.AddHeader("Authorization", "Basic " + CommonUtil.Base64Encode(Constants.Spotify.ClientId + ":" + Constants.Spotify.ClientSecret));
IRestResponse response = client.Execute(request);
if (response.IsSuccessful)
{
successful = true;
TokenRefreshResponse refreshResponse = JsonConvert.DeserializeObject <TokenRefreshResponse>(response.Content);
credentials.accessToken = refreshResponse.access_token;
}
return(successful);
}