The correct way to create an asynchronous method

Question

Is the async method used correctly, where the method code must make several asynchronous calls to wait. The plan is to run a few of this method and wait for them to complete before the code continues.

    public static Task<string> Get(string url)
    {
        return Task.Run(async () =>
        {
            var client = getBaseHttpClient();
            var result = await client.GetAsync(url).ConfigureAwait(false);
            if (result.IsSuccessStatusCode)
            {
                return await result.Content.ReadAsStringAsync();
            }
            return null;
        });
    }

Answer 1

Your code:

• starts thread threadpool ( Task.Run),
• which will start the asynchronous I / O operation ( GetAsync) and then return to the thread pool.
• When I / O is done ( await), another thread stream ( ConfigureAwait(false)) will be started ,
• which will start another asynchronous I / O operation to read the contents of the HTTP ( GetAsStringAsync) response and return to threadpool.
• - (await), , .

1. . , , - getBaseHttpClient threadpool, , , - / .

public static async Task<string> Get(string url)
{
    var client = getBaseHttpClient();
    var result = await client.GetAsync(url).ConfigureAwait(false);
    if (result.IsSuccessStatusCode)
    {
        return await result.Content.ReadAsStringAsync();
    }
    return null;
}

:

var tasks = urls.Select(Get);
var responses = await Task.WhenAll(tasks);