Change default timeout

The default timeout of an HttpClient is 100 seconds.

HttpClient Timeout

You can adjust to your HttpClient and set a custom timeout duration inside of your HttpService.

httpClient.Timeout = 5000;

HttpClient Request Timeout

You could alternatively define a timeout via a cancellation token CancellationTokenSource

using (var cts = new CancellationTokenSource(new TimeSpan(0, 0, 5)))
{
    await httpClient.GetAsync(url, cts.Token).ConfigureAwait(false);
}

A few notes:

1. Making changes inside of the HttpClient will affect all requests. If you want to make it per request you will need to pass through your desired timeout duration as a parameter.
2. Passing an instance of CancellationTokenSource will work if it’s timeout is lower than Timeout set by the HttpClient and HttpClient‘s timeout is not infinite. Otherwise, the HttpClient‘s timeout will take place.