我需要这个 C# 代码的 Swift 代码

Question

我用 C#(Xamarin) 编写了一个从 API 获取令牌的休息服务。我在 Swift 中需要相同的代码，我试图到处寻找，但找不到任何可靠的东西。看看下面的代码

public class RestService
{

    HttpClient client;

    public RestService()
    {
        client = new HttpClient();
        client.MaxResponseContentBufferSize = 256000;
        client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/x-www-form-urlencoded "));
    }
    public async Task<Token> Login(User user)
    {
        string webUrl = Utility.AppConstant.ApiUrl + "/token";
        var postData = new List<KeyValuePair<string, string>>();
        postData.Add(new KeyValuePair<string, string>("grant_type", "password"));
        postData.Add(new KeyValuePair<string, string>("username", user.Username));
        postData.Add(new KeyValuePair<string, string>("password", user.Password));
        var content = new FormUrlEncodedContent(postData);
        var response = await PostResponseLogin<Token>(webUrl, content);
        return response;
    }
    public async Task<T> PostResponseLogin<T>(string webUrl, FormUrlEncodedContent content) where T : class
    {
        try
        {
            var response = await client.PostAsync(webUrl, content);
            var jsonResult = response.Content.ReadAsStringAsync().Result;
            var responseObject = JsonConvert.DeserializeObject<T>(jsonResult);
            return responseObject;
        }
        catch 
        { return null; }
    }

Answer 1

Alamofire 让事情变得非常简单。

您的登录代码如下所示：

let parameters: Parameters = [
      "grant_type":"password",
      "username":user.Username,
      "password":user.Password
   ]
Alamofire.request(AppConstant.ApiUrl + "/token", method: .post, parameters: parameters) response in {

    // do something with the response

}

有很多选项可以满足您的任何需求，包括反序列化。