/// <summary> /// Creates the channel for the new service, and sets the proxy server. /// </summary> /// <param name="config">The configuration.</param> /// <returns>The new channel.</returns> private Channel CreateChannel(GoogleAdsConfig config) { if (config.Proxy == null) { Environment.SetEnvironmentVariable("http_proxy", null); } else { Environment.SetEnvironmentVariable("http_proxy", config.Proxy.Address.ToString()); } // GRPC uses c-ares DNS resolver, which doesn't seem to work on some Windows machines. // Turn it off for now. // https://github.com/googleads/google-ads-dotnet/issues/59 Environment.SetEnvironmentVariable("GRPC_DNS_RESOLVER", "native"); return(CachedChannelFactory.GetChannel(config)); }