I read this ‘Stream was already consumed’ error using Polly to retry requests in ASP.NET Core but cannot see where to clone the http request message.

So in my code, I register httpclient like:

var httpClientBuilder = serviceCollection.AddHttpClient("CustomHttpClientName");
httpClientBuilder.AddHttpMessageHandler(ctx=>...)
httpClientBuilder.AddPolicyHandler(GetRetryPolicy());

private static IAsyncPolicy<HttpResponseMessage> GetRetryPolicy()
{
    return HttpPolicyExtensions.HandleTransientHttpError()
        .OrResult(result => !result.IsSuccessStatusCode)
        .OrResult(result =>
        {
            var elem = result.Content.ReadFromJsonAsync<JsonElement>().GetAwaiter().GetResult();
            return elem.TryGetProperty("error", out _);
        })
        .WaitAndRetryAsync(
            sleepDurations: Backoff.DecorrelatedJitterBackoffV2(medianFirstRetryDelay: TimeSpan.FromSeconds(1), retryCount: 3),
            onRetry: (outcome, timespan, retryCount, context) =>
            {
                context.GetLogger()?.LogWarning("Delaying for {Delay}ms, then making retry {Retry}.", timespan.TotalMilliseconds, retryCount);
            });
}

and then http client call:

var request = CreateRequest(jsonContent, HttpMethod.Post, uri);
await GetClient().SendAsync(request, cancellationToken); // here I get runtime exception

I want to do a retry if in response json I see error field.

Above code leads to InvalidOperationException: ‘The stream was already consumed. It cannot be read again’