[C#] Naver API 호출

 

 

 

class News 

class News
{
    public string Title { get; set; }
    public string OriginalLink { get; set; }
    public string Link { get; set; }
    public string Description { get; set; }
    public DateTime Pubdate { get; set; }

    public News(string title, string originalLink, string link, string description, DateTime pubdate)
    {
        Title = title;
        OriginalLink = originalLink;
        Link = link;
        Description = description;
        Pubdate = pubdate;
    }

    public static News Make(XmlNode xn)
    {
        try
        {
            string title = Strip(xn.SelectSingleNode("title").InnerText);
            string olink = Strip(xn.SelectSingleNode("originallink").InnerText);
            string link = Strip(xn.SelectSingleNode("link").InnerText);
            string description = Strip(xn.SelectSingleNode("description").InnerText);
            DateTime pubdate = DateTime.Parse(xn.SelectSingleNode("pubDate").InnerText);
            return new News(title, olink, link, description, pubdate);
        }
        catch
        {
            return null;
        }
    }

    private static string Strip(string innerText)
    {
        int s = innerText.IndexOf("<");
        int e = innerText.IndexOf(">");
        while (s < e)
        {
            string b = innerText.Substring(0, s);
            string a = innerText.Substring(e + 1);
            innerText = b + a;
            s = innerText.IndexOf("<");
            e = innerText.IndexOf(">");
        }
        return innerText;
    }

    public override string ToString()
    {
        return Title;
    }
}

 

 

 

class NaverNews

class NaverNews
{
    public string SRC { get; set; }
    public string ID { get; set; }
    public string Secret { get; set; }

    public NaverNews(string iD, string secret)
    {
        this.ID = iD;
        this.Secret = secret;
    }

    public int Find(string src)
    {
        this.SRC = src;
        Stream stream;
        string url = $"https://openapi.naver.com/v1/search/news.xml?query={SRC}&sort=date";
        XmlDocument xdoc = MakeXMLDocument(url, out stream);
        XmlNode node = xdoc.SelectSingleNode("rss");
        XmlNode n = node.SelectSingleNode("channel");
        int total = int.Parse(n.SelectSingleNode("total").InnerText);
        stream.Close();
        return total;
    }

    private XmlDocument MakeXMLDocument(string url, out Stream stream)
    {
        WebRequest request = null;
        request = WebRequest.Create(url);
        request.Headers.Add("X-Naver-Client-Id", ID);
        request.Headers.Add("X-Naver-Client-Secret", Secret);

        WebResponse response = request.GetResponse();
        stream = response.GetResponseStream();
        XmlDocument xdoc = new XmlDocument();
        xdoc.Load(stream);
        return xdoc;
    }

    public List<News> FindNewsToXML(int start, int display)
    {
        Stream stream;
        string url = $"https://openapi.naver.com/v1/search/news.xml?query={SRC}&display={display}&start={start}&sort=date";

        XmlDocument xdoc = MakeXMLDocument(url, out stream);
        XmlNode node = xdoc.SelectSingleNode("rss");
        XmlNode n = node.SelectSingleNode("channel");
        XmlNodeList xnl = n.SelectNodes("item");
        List<News> nc = new List<News>();
        News news;
        foreach (XmlNode xn in xnl)
        {
            news = News.Make(xn);
            if (news == null)
            {
                break;
            }
            nc.Add(news);
        }
        stream.Close();
        return nc;
    }

    private async Task<string> MakeJSONDocumentAsync(string url)
    {
        try
        {
            HttpClient client = new HttpClient();
            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
            client.DefaultRequestHeaders.Add("X-Naver-Client-Id", ID);
            client.DefaultRequestHeaders.Add("X-Naver-Client-Secret", Secret);

            using (var response = client.GetAsync(new Uri(url)).Result)
            {
                return await response.Content.ReadAsStringAsync();
            }
        }
        catch
        {
            return null;
        }
    }

    private string MakeJSONDocument(string url)
    {
        string responseFromServer = string.Empty;

        try
        {
            WebRequest request = WebRequest.Create(url);

            request.Method = "GET";
            request.ContentType = "application/json";
            request.Headers["X-Naver-Client-Id"] = ID;
            request.Headers["X-Naver-Client-Secret"] = Secret;

            using (WebResponse response = request.GetResponse())
            using (Stream dataStream = response.GetResponseStream())
            using (StreamReader reader = new StreamReader(dataStream))
                responseFromServer = reader.ReadToEnd();
        }
        catch
        {
            return null;
        }

        return responseFromServer;
    }


    public List<News> FindNewsJson(int start, int display)
    {
        string url = $"https://openapi.naver.com/v1/search/news.json?query={SRC}&display={display}&start={start}&sort=sim";

        //var parseJson = JObject.Parse(MakeJSONDocument(url));
        var parseJson = JObject.Parse(MakeJSONDocumentAsync(url).Result);

        // var QueryResultCount = Convert.ToInt32(parseJson["display"]);
        // var TotalResultCount = Convert.ToInt32(parseJson["total"]);

        List<News> news = JsonConvert.DeserializeObject<List<News>>(parseJson["items"].ToString());

        return news;
    }
    public List<News> FindBlogsJson(int start, int display)
    {
        string url = $"https://openapi.naver.com/v1/search/blog.json?query={SRC}&display={display}&start={start}&sort=sim";
        //var parseJson = JObject.Parse(MakeJSONDocument(url));
        var parseJson = JObject.Parse(MakeJSONDocumentAsync(url).Result);
        // var QueryResultCount = Convert.ToInt32(parseJson["display"]);
        // var TotalResultCount = Convert.ToInt32(parseJson["total"]);
        List<News> news = JsonConvert.DeserializeObject<List<News>>(parseJson["items"].ToString());
        return news;
    }
}

 

 

 

mcpClient = await GetMcpClientAsync();

   async Task<IMcpClient> GetMcpClientAsync()
   {
       try
       {
           // Create Sse MCP client connecting to our MCP server
           var mcpClient = await McpClientFactory.CreateAsync(
               new SseClientTransport(
                   new SseClientTransportOptions
                   {
                       Name = "SseClientTest",
                       Endpoint = new Uri("https://localhost:7051/sse"),
                   }
               )
           );
           return mcpClient;
       }
       catch (Exception e)
       {
           Trace.WriteLine($"Error creating MCP client: {e.Message}");
           return null;
       }
   }

 

GetNews

    public async Task<IEnumerable<SearchedItem>> GetNews(string searchedText)
    {
        var searchedItems = new List<SearchedItem>();
        try
        {

            var searchNaverNews = await mcpClient.CallToolAsync(
                "NaverNewsSearch",
                new Dictionary<string, object?>() { ["message"] = searchedText },
                cancellationToken: CancellationToken.None);

            foreach (var item in searchNaverNews.Content)
            {
                var searchedItem = new SearchedItem
                {
                    Name = item.Text?.Split('\n')[0],
                    Content = item.Text?.Split('\n')[1],
                    Link = item.Text?.Split('\n')[2],
                    //Type = item.Text?.Split('\n')[3] ?? "Feature"
                };

                searchedItems.Add(searchedItem);

                Trace.WriteLine("==============================================================================");
                Trace.WriteLine($"Title: {item?.Text?.Split('\n')[0]}");
                Trace.WriteLine($"Description: {item?.Text?.Split('\n')[1]}");
                Trace.WriteLine($"Link: {item?.Text?.Split('\n')[2]}");
                Trace.WriteLine($"PubDate: {item?.Text?.Split('\n')[3]}");

            }

        }
        catch (Exception e)
        {
            Trace.WriteLine($"Error fetching news: {e.Message}");
        }
        return searchedItems;

    }

 

 

 

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https://velog.io/@ansalstmd/C-%EC%95%8C%EC%95%84%EA%B0%80%EA%B8%B0-6.-C-%EB%84%A4%EC%9D%B4%EB%B2%84-API%EB%A1%9C-%EB%89%B4%EC%8A%A4-%EC%A0%95%EB%B3%B4-%EB%B0%9B%EC%95%84%EC%98%A4%EA%B8%B0

C# 알아가기 (6. C# 네이버 API로 뉴스 정보 받아오기)

 

 

https://developers.naver.com/docs/serviceapi/search/blog/blog.md#%EB%B8%94%EB%A1%9C%EA%B7%B8

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