Run a async function without waiting for the response in c# webforms-CodePudding

I have a button that makes a REST request to create a document:


private void Click(object sender, ActionBaseEventArgs e)
{
   RequestQuotationDocument(quotation.Oid).ConfigureAwait(false);
}

private async System.Threading.Tasks.Task RequestQuotationDocument(int quotationId)
{
    HttpClient client = new HttpClient();
    var values = new 
    {
        DocumentType = "Quotation",
        Id = quotationId.ToString()
    };


    var content = new StringContent(JsonConvert.SerializeObject(values), System.Text.Encoding.UTF8,
        "application/json");

    await client.PostAsync(url, content);
}

However the page is still waiting for the response of the POST request. How do I make this truly async?

CodePudding user response：

How do I make this truly async?

In ASP.NET, await yields to the thread pool, not the client.

If possible, I recommend changing the client so that a longer request is handled appropriately; e.g., calling this via JavaScript instead of a click handler, and updating the page when it completes.

If you really need to return early from an web request, then you should implement a basic distributed architecture. As described on my blog, this consists of two parts:

A durable queue of work.
A backend processor of that queue.