如何在 .core 中使用“ReadAsAsync”

Question

我需要使用 cutt.ly URL 更短的 API 我遵循了它的文档以及我如何使用它

class Program
{
    private const string URL = "https://cutt.ly/api/api.php";
    private static string urlParameters = "?key=ddbbdd323230fbf3e0b9&short=https://www.google.com&name=Test";
    static void Main(string[] args)
    {
        HttpClient client = new HttpClient();
        client.BaseAddress = new Uri(URL);

        client.DefaultRequestHeaders.Accept.Add(
        new MediaTypeWithQualityHeaderValue("application/json"));

        HttpResponseMessage response = client.GetAsync(urlParameters).Result;.
        if (response.IsSuccessStatusCode)
        {
            var dataObjects = response.Content.ReadAsAsync().Result;
            foreach (var d in dataObjects)
            {
                Console.WriteLine("{0}", d.ToString());
            }
        }
        else
        {
            Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
        }

        client.Dispose();
        Console.ReadLine();
    }
}

但问题是我遇到了以下编译错误。

'HttpContent' does not contain a definition for 'ReadAsAsync' and no accessible extension method 'ReadAsAsync' accepting a first argument of type 'HttpContent' could be found

我正在使用 .net 核心。我如何使用 .net 核心来处理这个问题。我找到了这个。但我不清楚它的答案。

Answer 1

如果您只需要一个短链接

var json = response.Content.ReadAsStringAsync().Result;
var result=JObject.Parse(json);

var shortLink = result["url"]["shortLink"].ToString();

Answer 2

我之前做过这个 here 您将必须安装 Newtonsoft.Json nuget 包

CuttlyApiKey 是您的 api 密钥，SelectedCustomText 是您 link 的自定义名称，如果您不想设置自定义名称，您可以设置 string.empty

public async Task<string> CuttlyShorten(string longUrl)
        {

            try
            {
                string url = string.Format("https://cutt.ly/api/api.php?key={0}&short={1}&name={2}", CuttlyApiKey, HttpUtility.UrlEncode(longUrl), SelectedCustomText);

                using (HttpClient client = new HttpClient())
                using (HttpResponseMessage response = await client.GetAsync(url))
                using (HttpContent content = response.Content)
                {
                    dynamic root = JsonConvert.DeserializeObject<dynamic>(response.Content.ReadAsStringAsync().Result);

                    string statusCode = root.url.status;
                    if (statusCode.Equals("7"))
                    {
                        string link = root.url.shortLink;

                        return link;
                    }
                    else
                    {
                        string error = root.status;
                        
                    }

                }
            }
            catch (Exception ex)
            {
                
            }


            return "error";
        }

用法：

var shortUrl = await CuttlyShorten(url);

如何在 .core 中使用“ReadAsAsync”

How to use “ReadAsAsync” in .core

c#

json

httpclient

.net-core