public async Task <Countries> GetCountryCodeAsync(CancellationToken cancellationToken)
{
Countries result = Countries.UN;
IpWhoisGeoData geoData = await GetDataAsync(cancellationToken);
if (geoData != null)
{
if (Enum.TryParse(geoData.country_code, out Countries parseResult))
{
result = parseResult;
_log.LogInformation("Geodata received successfully, runtime country is {Country}", result.ToString());
}
}
return(result);
}
private async Task <IpWhoisGeoData> GetDataAsync(CancellationToken cancellationToken)
{
IpWhoisGeoData result = null;
try
{
HttpClient client = _httpClientFactory.CreateClient();
client.BaseAddress = new Uri(_providerUrl);
string userAgent = $"{Program.AppName}/{Program.AppVersion}";
client.DefaultRequestHeaders.TryAddWithoutValidation("User-Agent", userAgent);
client.Timeout = TimeSpan.FromSeconds(60);
HttpResponseMessage response = await client.GetAsync(new Uri("json/?lang=ru&objects=country_code", UriKind.Relative), cancellationToken);
response.EnsureSuccessStatusCode();
using (Stream responseStream = await response.Content.ReadAsStreamAsync(cancellationToken))
{
IpWhoisGeoData data = await JsonSerializer
.DeserializeAsync <IpWhoisGeoData>(responseStream, new JsonSerializerOptions(), cancellationToken);
if (data != null)
{
result = data;
}
else
{
_log.LogWarning("No geodata available.");
}
}
}
catch (TaskCanceledException ex)
{
_log.LogWarning("Unable to get runtime geodata: {ExceptionMessage}", ex.Message);
}
catch (Exception ex)
{
_log.LogError(ex, "Error getting geodata");
}
return(result);
}