使用 C# 从随机用户 API 检索数据

Question

我正在尝试使用 C#（我是新手）从 Random User API (https://api.randomuser.me/) 接收数据。我有一个 React 前端，并且能够成功地检索和呈现一个人的性别、一个人的位置。但是，当涉及到进一步嵌套的细节时，我很挣扎，例如一个人的名字。我现在的后端代码是：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;

namespace RandomPersonGenerator.Controllers
{
    [Route("api/[controller]")]
    public class GeneratorController : Controller
    {
        [HttpGet("[action]")]
        public async Task<IActionResult> Generate()
        {
            using (var client = new HttpClient())
            {
                try
                {
                    client.BaseAddress = new Uri("https://api.randomuser.me");
                    var response = await client.GetAsync("https://api.randomuser.me");
                    response.EnsureSuccessStatusCode();

                    var stringResult = await response.Content.ReadAsStringAsync();
                    var rawData = JsonConvert.DeserializeObject<PersonAPIResponse>(stringResult);
                    return Ok(new
                    {
                        Gender = rawData.Results.Select(x => x.Gender)
                    });
                }

                catch (HttpRequestException httpRequestException)
                {
                    return BadRequest($"Error generating person: {httpRequestException.Message}");
                }
            }
        }
    }

    public class PersonAPIResponse
    {
        public IEnumerable<PersonDescription> Results { get; set; }
    }

    public class PersonDescription
    {
        public string Gender { get; set; }
    }
}

我试图通过添加以下内容来检索一个人的名字：

Name = rawData.Results.Select(x => x.Name) 和 Name = rawData.Results.Select(x => x.Name.First) 但这不是检索数据。有人能帮我从随机用户 API JSON 中选择名字吗？

谢谢！

Answer 1

您的问题是您需要更改此行：

var rawData = JsonConvert.DeserializeObject<PersonAPIResponse>(stringResult);

到

RootObject person = JsonConvert.DeserializeObject<RootObject>(stringResult);

您应该创建一个新的返回类型类并将其映射到您想要返回的内容中......从人员分配：

public class PersonAPIResponse
{
    //.... your own properties 
}

返回

return Ok(new PersonAPIResponse
              {
                 Gender = person.results[0].gender, //first result
              });

您还需要包含以下类来反序列化字符串：

public class Name
{
    public string title { get; set; }
    public string first { get; set; }
    public string last { get; set; }
}

public class Coordinates
{
    public string latitude { get; set; }
    public string longitude { get; set; }
}

public class Timezone
{
    public string offset { get; set; }
    public string description { get; set; }
}

public class Location
{
    public string street { get; set; }
    public string city { get; set; }
    public string state { get; set; }
    public int postcode { get; set; }
    public Coordinates coordinates { get; set; }
    public Timezone timezone { get; set; }
}

public class Login
{
    public string uuid { get; set; }
    public string username { get; set; }
    public string password { get; set; }
    public string salt { get; set; }
    public string md5 { get; set; }
    public string sha1 { get; set; }
    public string sha256 { get; set; }
}

public class Dob
{
    public DateTime date { get; set; }
    public int age { get; set; }
}

public class Registered
{
    public DateTime date { get; set; }
    public int age { get; set; }
}

public class Id
{
    public string name { get; set; }
    public object value { get; set; }
}

public class Picture
{
    public string large { get; set; }
    public string medium { get; set; }
    public string thumbnail { get; set; }
}

public class Result
{
    public string gender { get; set; }
    public Name name { get; set; }
    public Location location { get; set; }
    public string email { get; set; }
    public Login login { get; set; }
    public Dob dob { get; set; }
    public Registered registered { get; set; }
    public string phone { get; set; }
    public string cell { get; set; }
    public Id id { get; set; }
    public Picture picture { get; set; }
    public string nat { get; set; }
}

public class Info
{
    public string seed { get; set; }
    public int results { get; set; }
    public int page { get; set; }
    public string version { get; set; }
}

public class RootObject
{
    public List<Result> results { get; set; }
    public Info info { get; set; }
}

Answer 2

{
    public class Name
    {
        public string Title { get; set; }
        public string First { get; set; }
        public string Last { get; set; }
    }

    public class Result
    {
        public Name Name { get; set; }
    }

    public class Person
    {
        public List<Result> Results { get; set; }
    }

    public async Task<Name> GetPersonAsync()
    {
        HttpClient client = new HttpClient
        {
            BaseAddress = new Uri("https://api.randomuser.me")
        };
        HttpResponseMessage response = await client.GetAsync("https://randomuser.me/api/");
        response.EnsureSuccessStatusCode();
 
        var stringResult = await response.Content.ReadAsStringAsync();
        Person root = JsonConvert.DeserializeObject<Person>(stringResult);
        Console.WriteLine(root.Results[0].Name.Last);
        return root.Results[0].Name;
    }

}