使用 C# 将图像上传到 Imgur.com答案

【问题标题】：Uploading images to Imgur.com using C#使用 C# 将图像上传到 Imgur.com
【发布时间】：2011-01-03 14:12:41
【问题描述】：

我刚刚从 Imgur 收到了我独特的开发者 API 密钥，我渴望开始破解这个宝贝。

首先是一个简单的测试来开始。如何使用 C# 上传图像？我使用 Python 找到了这个：

#!/usr/bin/python

import pycurl

c = pycurl.Curl()
values = [
          ("key", "YOUR_API_KEY"),
          ("image", (c.FORM_FILE, "file.png"))]
# OR:     ("image", "http://example.com/example.jpg"))]
# OR:     ("image", "BASE64_ENCODED_STRING"))]

c.setopt(c.URL, "http://imgur.com/api/upload.xml")
c.setopt(c.HTTPPOST, values)

c.perform()
c.close()

【问题讨论】：

标签： c# api http-post uploading imgur

【解决方案1】：

该网站似乎使用 HTTP Post 来上传图片。查看 HTTPWebRequest 类并使用它来 POST 到 URL：Posting data with HTTPRequest。

【讨论】：

【解决方案2】：

Imgur API 现在提供complete c# example：

using System;
using System.IO;
using System.Net;
using System.Text;

namespace ImgurExample
{
    class Program
    {
        static void Main(string[] args)
        {
            PostToImgur(@"C:\Users\ashwin\Desktop\image.jpg", IMGUR_ANONYMOUS_API_KEY);
        }

        public static void PostToImgur(string imagFilePath, string apiKey)
        {
            byte[] imageData;

            FileStream fileStream = File.OpenRead(imagFilePath);
            imageData = new byte[fileStream.Length];
            fileStream.Read(imageData, 0, imageData.Length);
            fileStream.Close();

            string uploadRequestString = "image=" + Uri.EscapeDataString(System.Convert.ToBase64String(imageData)) + "&key=" + apiKey;

            HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create("http://api.imgur.com/2/upload");
            webRequest.Method = "POST";
            webRequest.ContentType = "application/x-www-form-urlencoded";
            webRequest.ServicePoint.Expect100Continue = false;

            StreamWriter streamWriter = new StreamWriter(webRequest.GetRequestStream());
            streamWriter.Write(uploadRequestString);
            streamWriter.Close();

            WebResponse response = webRequest.GetResponse();
            Stream responseStream = response.GetResponseStream();
            StreamReader responseReader = new StreamReader(responseStream);

            string responseString = responseReader.ReadToEnd();
        }
    }
}

【讨论】：

我之前已经看过这段代码。它对我不起作用，并且您提供的链接也已被删除。 Imgur 告诉我（我问他们）他们将其删除是因为旧示例由于新的 API 而无关紧要。

【解决方案3】：

为什么不为此使用 NuGet：称为 Imgur.API 并用于上传你会有这样的方法：

/*
   The refresh token and all the values represented by constans are given when you allow the application in your imgur panel on the response url
*/

public OAuth2Token CreateToken()
{
    var token = new OAuth2Token(TOKEN_ACCESS, REFRESH_TOKEN, TOKEN_TYPE, ID_ACCOUNT, IMGUR_USER_ACCOUNT, int.Parse(EXPIRES_IN));
    return token;
}

//Use it only if your token is expired
public Task<IOAuth2Token> RefreshToken()
{
    var client = new ImgurClient(CLIENT_ID, CLIENT_SECRET);
    var endpoint= new OAuth2Endpoint(client);
    var token = endpoint.GetTokenByRefreshTokenAsync(REFRESH_TOKEN);
    return token;
}


public async Task UploadImage()
{
     try
     {
          var client = new ImgurClient(CLIENT_ID, CLIENT_SECRET, CreateToken());
          var endpoint = new ImageEndpoint(client);
          IImage image;
          //Here you have to link your image location
          using (var fs = new FileStream(@"IMAGE_LOCATION", FileMode.Open))
          {
             image = await endpoint.UploadImageStreamAsync(fs);
          }
                Debug.Write("Image uploaded. Image Url: " + image.Link);
         }
         catch (ImgurException imgurEx)
         {
                Debug.Write("Error uploading the image to Imgur");
                Debug.Write(imgurEx.Message);
         }
     }

您也可以在这里找到所有参考资料：Imgur.API NuGet

【讨论】：