问题

Here's the translation of the code portion you provided:

对于你的信息，我正在使用"TweetinviAPI (5.0.4)" NuGet 包。

我在这里找到了与发布带媒体推文相关的信息，但我不知道如何在 C# 中使用它：

https://developer.twitter.com/en/docs/twitter-api/tweets/manage-tweets/api-reference/post-tweets

[这里有一个示例 --> media.media_ids](https://i.stack.imgur.com/VFz8H.png)

----------------------------------------------------------------------------------------------------

目前我有一个名为"text"的 JsonProperty。它完全正常工作。这是我的 "Poster" 类：

namespace MainData.Twitter_API_v2
{
    public class TweetsV2Poster
    {
        private readonly ITwitterClient client;

        public TweetsV2Poster(ITwitterClient client)
        {
            this.client = client;
        }

        public Task<ITwitterResult> PostTweet(TweetV2PostRequest tweetParams)
        {
            return this.client.Execute.AdvanceRequestAsync(
                (ITwitterRequest request) =>
                {
                    var jsonBody = this.client.Json.Serialize(tweetParams);

                    var content = new StringContent(jsonBody, Encoding.UTF8, "application/json");
                    request.Query.Url = "https://api.twitter.com/2/tweets";
                    request.Query.HttpMethod = Tweetinvi.Models.HttpMethod.POST;
                    request.Query.HttpContent = content;
                }
            );
        }
    }

    public class TweetV2PostRequest
    {
        /// <summary>
        /// 要发布的推文文本。
        /// </summary>
        [JsonProperty("text")]
        public string Text { get; set; } = string.Empty;
    }
}

----------------------------------------------------------------------------------------------------

这里我正在调用 "Poster" 类：

// 获取 byte[] --> itemshopImg
GetItemshopImage dailyData = new GetItemshopImage();
var itemshopImg = dailyData.GetItemshopImg();

// 创建 Twitter 客户端
var client = new TwitterClient(
                "x",
                "x",
                "x",
                "x"
            );

// 上传推文图片
var tweetItemshopImg = await client.Upload.UploadTweetImageAsync(itemshopImg);

// 发布推文
var poster = new TweetsV2Poster(client);
ITwitterResult result = await poster.PostTweet(
    new TweetV2PostRequest
    {
        Text = "myText"
    });

----------------------------------------------------------------------------------------------------
我的目标是使用 "tweetItemshopImg" 变量中的 Id（在开头的图片中的 media.id）并将其传递给 "TweetsV2Poster" 类内部的 JSON 属性。

Please note that I've translated the code portion for you, as requested.

namespace MainData.Twitter_API_v2
{
public class TweetsV2Poster
{
private readonly ITwitterClient client;
public TweetsV2Poster(ITwitterClient client)
{
this.client = client;
}
public Task<ITwitterResult> PostTweet(TweetV2PostRequest tweetParams)
{
return this.client.Execute.AdvanceRequestAsync(
(ITwitterRequest request) =>
{
var jsonBody = this.client.Json.Serialize(tweetParams);
var content = new StringContent(jsonBody, Encoding.UTF8, "application/json");
request.Query.Url = "https://api.twitter.com/2/tweets";
request.Query.HttpMethod = Tweetinvi.Models.HttpMethod.POST;
request.Query.HttpContent = content;
}
);
}
}
public class TweetV2PostRequest
{
/// <summary>
/// The text of the tweet to post.
/// </summary>
[JsonProperty("text")]
public string Text { get; set; } = string.Empty;
}
}

//Get the byte[] --> itemshopImg
GetItemshopImage dailyData = new GetItemshopImage();
var itemshopImg = dailyData.GetItemshopImg();
//Create Twitter Client
var client = new TwitterClient(
"x",
"x",
"x",
"x"
);
//Upload Tweet Image
var tweetItemshopImg = await client.Upload.UploadTweetImageAsync(itemshopImg);
//Post Tweet
var poster = new TweetsV2Poster(client);
ITwitterResult result = await poster.PostTweet(
new TweetV2PostRequest
{
Text = "myText"
});

答案1

得分: 0

Here's the translated code part:

{
    "text": "Tweeting with media!",
    "media": {
        "media_ids": [
            "1455952740635586573"
        ]
    }
}

Modify your `TweetV2PostRequest` as follows:

public class TweetV2PostRequest
{
    /// <summary>
    /// The text of the tweet to post.
    /// </summary>
    [JsonProperty("text")]
    public string Text { get; set; } = string.Empty;

    [JsonProperty("media", NullValueHandling = NullValueHandling.Ignore)]
    public TweetV2Media? Media { get; set; }
}

public class TweetV2Media
{
    [JsonIgnore]
    public List<long>? MediaIds { get; set; }

    [JsonProperty("media_ids", NullValueHandling = NullValueHandling.Ignore)]
    public string[]? MediaIdStrings
    {
        get => MediaIds?.Select(i => JsonConvert.ToString(i)).ToArray();
        set => MediaIds = value?.Select(s => JsonConvert.DeserializeObject<long>(s)).ToList();
    }

    // Add others here as required, setting NullValueHandling.Ignore or DefaultValueHandling = DefaultValueHandling.Ignore to suppress unneeded properties
}

And call `poster.PostTweet()` as follows:

// Post Tweet
// tweetItemshopImg.Id is a Nullable<long>
var poster = new TweetsV2Poster(client);
ITwitterResult result = await poster.PostTweet(
    new TweetV2PostRequest
    {
        Text = "Tweeting with media!",
        Media = tweetItemshopImg?.Id == null ? null : new () { MediaIds = new () { tweetItemshopImg.Id.Value } }
    });

Notes:

- It seems that [tag:tweetinvi] does not currently have support for posting tweets with associated media using the Twitter V2 API. A [search](https://github.com/linvi/tweetinvi/search?q=BaseTweetsV2Parameters) of the source code for `BaseTweetsV2Parameters` turns up several derived types such as `GetTweetsV2Parameters` -- but no `PostTweetsV2Parameters`.

- To confirm the correct JSON was generated, I modified `TweetsV2Poster` as follows:

public Task<ITwitterResult> PostTweet(TweetV2PostRequest tweetParams)
{
    return this.client.Execute.AdvanceRequestAsync(
        (ITwitterRequest request) =>
        {
            var jsonBody = this.client.Json.Serialize(tweetParams);

            Debug.WriteLine(JToken.Parse(jsonBody));

            Assert.That(JToken.Parse(jsonBody).ToString() == JToken.Parse(GetRequiredJson()).ToString());

            var content = new StringContent(jsonBody, Encoding.UTF8, "application/json");
            request.Query.Url = "https://api.twitter.com/2/tweets";
            request.Query.HttpMethod = Tweetinvi.Models.HttpMethod.POST;
            request.Query.HttpContent = content;
        }
    );
}

static string GetRequiredJson() =>
    @"
    {
       ""text"": ""Tweeting with media!"",
       ""media"": {
          ""media_ids"": [
             ""1455952740635586573""
          ]
       }
    }";

I've translated the code while keeping the code structure and JSON intact.

{
"text":"Tweeting with media!",
"media":{
"media_ids":[
"1455952740635586573"
]
}
}	

public class TweetV2PostRequest
{
/// <summary>
/// The text of the tweet to post.
/// </summary>
[JsonProperty("text")]
public string Text { get; set; } = string.Empty;
[JsonProperty("media", NullValueHandling = NullValueHandling.Ignore)]
public TweetV2Media? Media { get; set; }
}
public class TweetV2Media
{
[JsonIgnore]
public List<long>? MediaIds { get; set; }
[JsonProperty("media_ids", NullValueHandling = NullValueHandling.Ignore)]
public string []? MediaIdStrings { 
get => MediaIds?.Select(i => JsonConvert.ToString(i)).ToArray(); 
set => MediaIds = value?.Select(s =>JsonConvert.DeserializeObject<long>(s)).ToList(); }
// Add others here as required, setting NullValueHandling.Ignore or DefaultValueHandling = DefaultValueHandling.Ignore to suppress unneeded properties
}

//Post Tweet
// tweetItemshopImg.Id is a Nullable<long>
var poster = new TweetsV2Poster(client);
ITwitterResult result = await poster.PostTweet(
new TweetV2PostRequest
{
Text = "Tweeting with media!",
Media = tweetItemshopImg?.Id == null ? null : new () { MediaIds = new () { tweetItemshopImg.Id.Value } }
});