###### tags: `Line`,`C#`,`IFTTT`

# C#-透過IFTTT送訊息到Line

## IFTTT設定
TODO: 設定步驟

到此為止，只要在任何一個可以連網的瀏覽器，輸入

https://maker.ifttt.com/trigger/[事件名稱]/with/key/[金鑰]/?value1=[訊息內文]

就能夠傳訊息到Line了。

## C#程式設計
程式的目的就是要想辦法送出以上那個URL。
我查過方法有很多種，這裡使用其中一種，已實驗過沒問題。

using System.Net;

string EVENT = "line_msg"; //這是事件名稱，來自IFTTT
string KEY = "xxxxxxxxxxxxxxxxxx"; //這是金鑰，來自IFTTT
string sMessage = "訊息內文";

string url = "http://maker.ifttt.com/trigger/" + EVENT + "/with/key/" + KEY;

var httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
httpWebRequest.Timeout = 3000;
httpWebRequest.ReadWriteTimeout = 3000;
httpWebRequest.UseDefaultCredentials = true;
httpWebRequest.Proxy.Credentials = CredentialCache.DefaultCredentials;

using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream())) {
    string json = "{\"value1\":\"" + sMessage + "\"}";
    streamWriter.Write(json);
}

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream())) {
    var result = streamReader.ReadToEnd();
    if (result == "Congratulations! You've fired the " + EVENT + " event") {
        // 到這裡表示成功送出去了!
    }
}