c# - 多次调用 Api C#

问题描述

我正在尝试使用 rawg api 并从他们的 api 获取游戏，我创建了游戏实体类来将数据解析为

//game entity
public class Game
    {
        public int Id { get; set; }
        public string Slug { get; set; }
        public string Name { get; set; }
        public string Released { get; set; }
        public string Background_Image { get; set; }
        public int Rating { get; set; }
        public int Playtime { get; set; }
    }

现在我需要从 api 获取游戏，我做了这个方法

public static async Task<List<Game>> ApiRawgGamesRequest()
        {
            var gamesList = new List<Game>();

            for (int i = 1; i < 250; i++)
            {
                using (var msg = new HttpRequestMessage(HttpMethod.Get, new Uri($"https://api.rawg.io/api/games?page_size=40&page={i}")))
                using (var response = await _client.SendAsync(msg))
                {
                    response.EnsureSuccessStatusCode();
                    var gamesResponse = await response.Content.ReadAsAsync<Game[]>();
                    gamesList.AddRange(gamesResponse);
                }
            }

            return gamesList;
        }

我试图不要一次添加所有游戏，所以我使用 for 循环不断地将游戏添加到列表中，以潜在地减轻压力。但我得到一个错误

// error
Unhandled exception. System.AggregateException: One or more errors occurred. (Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'Domain.Game[]' because the t
ype requires a JSON array (e.g. [1,2,3]) to deserialize correctly.
To fix this error either change the JSON to a JSON array (e.g. [1,2,3]) or change the deserialized type so that it is a normal .NET type (e.g. not a primitive type like integer, not a
collection type like an array or List<T>) that can be deserialized from a JSON object. JsonObjectAttribute can also be added to the type to force it to deserialize from a JSON object.
Path 'count', line 1, position 9.)

来自 rawg api 的响应看起来像这样——结果部分是我试图收集的游戏数据

// api response
{
"count": 454988,
"next": "https://api.rawg.io/api/games?page=2&page_size=40",
"previous": null,
"results": [
{
"id": 3498,
"slug": "grand-theft-auto-v",
"name": "Grand Theft Auto V",
"released": "2013-09-17",
"tba": false,
"background_image": "https://media.rawg.io/media/games/84d/84da2ac3fdfc6507807a1808595afb12.jpg",
"rating": 4.48,
},
{
"id": 4200,
"slug": "portal-2",
"name": "Portal 2",
"released": "2011-04-18",
"tba": false,
"background_image": "https://media.rawg.io/media/games/328/3283617cb7d75d67257fc58339188742.jpg",
"rating": 4.62
}
]
}

有一个更好的方法吗？

标签： c#asp.net-coreasp.net-web-api.net-core

因此，您试图仅反序列化 json 的“结果”部分，您必须使用响应 json 中的所有项目构建一个类。

// Root myDeserializedClass = JsonConvert.DeserializeObject<Root>(myJsonResponse); 
    public class Result    {
        public int id { get; set; } 
        public string slug { get; set; } 
        public string name { get; set; } 
        public string released { get; set; } 
        public bool tba { get; set; } 
        public string background_image { get; set; } 
        public double rating { get; set; } 
    }

    public class Root    {
        public int count { get; set; } 
        public string next { get; set; } 
        public object previous { get; set; } 
        public List<Result> results { get; set; } 
    }

您总是可以在线使用某种 Json>class 生成器，将此用于此 anwser：https ://json2csharp.com/

c# - 多次调用 Api C#

问题描述

解决方案

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