How to use HttpClient without async

问题

Hello I'm following to this guide

static async Task<Product> GetProductAsync(string path)
{
    Product product = null;
    HttpResponseMessage response = await client.GetAsync(path);
    if (response.IsSuccessStatusCode)
    {
        product = await response.Content.ReadAsAsync<Product>();
    }
    return product;
}

I use this example on my code and I want to know is there any way to use HttpClient without async/await and how can I get only string of response?

Thank you in advance

回答1:

Of course you can:

public static string Method(string path)
{
   using (var client = new HttpClient())
   {
       var response = client.GetAsync(path).GetAwaiter().GetResult();
       if (response.IsSuccessStatusCode)
       {
            var responseContent = response.Content;
            return responseContent.ReadAsStringAsync().GetAwaiter().GetResult();
        }
    }
 }

but as @MarcinJuraszek said:

"That may cause deadlocks in ASP.NET and WinForms. Using .Result or .Wait() with TPL should be done with caution".

Here is the example with WebClient.DownloadString

using (var client = new WebClient())
{
    string response = client.DownloadString(path);
    if (!string.IsNullOrEmpty(response))
    {
       ...
    }
}

回答2:

is there any way to use HttpClient without async/await and how can I get only string of response?

HttpClient was specifically designed for asynchronous use.

If you want to synchronously download a string, use WebClient.DownloadString.

来源：https://stackoverflow.com/questions/40208647/how-to-use-httpclient-without-async

标签

ASP.NET

asp.net-mvc

webclient