GrabzIt API的檢索方法

有兩種方法可用於從GrabzIt的API檢索屏幕截圖，表格捕獲和GIF動畫，這兩種方法各有優缺點。

異步方式

也稱為回調方法，這是檢索捕獲的推薦方法。但是，它確實要求所構建的應用程序具有域名或公共可用的IP地址。可以使用此方法的一個示例是Web應用程序。

從該圖中可以看出，異步方法的工作原理是向GrabzIt發送一個調用，然後等待將調用發送回應用程序，說明屏幕快照已準備就緒。使用此方法的優點是它需要較少的調用，並允許其他進程（例如Web請求）繼續進行int爆發。

下面顯示了GrabzIt當前支持的每種服務器端語言的異步調用示例。

ASP.NET
Java的
Node.js的
Perl的
PHP
蟒蛇
紅寶石

請記住，為了異步調用GrabzIt的API，您將需要實現此ASP.NET 處理器.

GrabzItClient grabzIt = new GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret");
grabzIt.URLToImage("http://www.spacex.com");
grabzIt.Save("http://www.mywebsite.com/Home/Handler");

請記住，為了異步調用GrabzIt的API，您將需要實現此Java 處理器.

GrabzItClient grabzIt = new GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret");
grabzIt.URLToImage("http://www.spacex.com");
grabzIt.Save("http://www.mywebsite.com/handler");

請記住，為了異步調用GrabzIt的API，您將需要實現此Node.js。處理器，但是不要將此與Node.js函數回調混淆。這裡討論的回調是通過Internet發送的HTTP回調！

var grabzit = require('grabzit');

var client = new grabzit("Sign in to view your Application Key", "Sign in to view your Application Secret");
client.url_to_image("http://www.spacex.com");
client.save("http://www.example.com/handler", function (error, id){
    if (error != null){
        throw error;
    }
});

請記住，為了異步調用GrabzIt的API，您將需要實現此Perl 處理器.

$grabzIt = GrabzItClient->new("Sign in to view your Application Key", "Sign in to view your Application Secret");
$grabzIt->URLToImage("http://www.spacex.com");
$grabzIt->Save("http://www.mywebsite.com/handler.pl");

請記住，為了異步調用GrabzIt的API，您將需要實現此PHP 處理器.

$grabzIt = new \GrabzIt\GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret");
$grabzIt->URLToImage("http://www.spacex.com");
$grabzIt->Save("http://www.mywebsite.com/handler.php");

請記住，為了異步調用GrabzIt的API，您將需要實現此Python 處理器.

grabzIt = GrabzItClient.GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret")
grabzIt.URLToImage("http://www.spacex.com")
grabzIt.Save("http://www.mywebsite.com/handler.py")

請記住，為了異步調用GrabzIt的API，您需要實現此Ruby 處理器.

grabzIt = GrabzIt::Client.new("Sign in to view your Application Key", "Sign in to view your Application Secret")
grabzIt.url_to_image("http://www.spacex.com")
grabzIt.save("http://www.mywebsite.com/handler/index")

同步方式

僅在無法使用異步方法的情況下才應使用此方法。同步方法的工作原理是，向GrabzIt發送調用以創建捕獲，然後每隔幾秒鐘輪詢一次GrabzIt，直到準備就緒為止，如圖所示。

準備就緒後，它將照常下載捕獲的內容。該技術的缺點是，它迫使當前進程等待捕獲完成，這就是為什麼它不適用於Web應用程序的原因。但是，優點是該應用程序不需要域名或IP地址，因此可以從桌面應用程序中使用。

下面顯示了GrabzIt當前支持的每種服務器端語言的同步調用示例。

ASP.NET
Java的
JavaScript的
Node.js的
Perl的
PHP
蟒蛇
紅寶石

GrabzItClient grabzIt = new GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret");
grabzIt.URLToImage("http://www.spacex.com");
grabzIt.SaveTo("spacex.jpg");

GrabzItClient grabzIt = new GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret");
grabzIt.URLToImage("http://www.spacex.com");
grabzIt.SaveTo("spacex.jpg");

<script src="https://cdn.jsdelivr.net/npm/@grabzit/js@3.4.7/grabzit.min.js"></script>
<script>
GrabzIt("Sign in to view your Application Key").ConvertURL("http://www.spacex.com").Create();
</script>

var grabzit = require('grabzit');

var client = new grabzit("Sign in to view your Application Key", "Sign in to view your Application Secret");
client.url_to_image("http://www.spacex.com");
client.save_to("spacex.jpg", function (error, id){
    if (error != null){
        throw error;
    }
});

$grabzIt = GrabzItClient->new("Sign in to view your Application Key", "Sign in to view your Application Secret");
$grabzIt->URLToImage("http://www.spacex.com");
$grabzIt->SaveTo("spacex.jpg");

$grabzIt = new \GrabzIt\GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret");
$grabzIt->URLToImage("http://www.spacex.com");
$grabzIt->SaveTo("spacex.jpg");

grabzIt = GrabzItClient.GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret")
grabzIt.URLToImage("http://www.spacex.com")
grabzIt.SaveTo("spacex.jpg")

grabzIt = GrabzIt::Client.new("Sign in to view your Application Key", "Sign in to view your Application Secret")
grabzIt.url_to_image("http://www.spacex.com")
grabzIt.save_to("spacex.jpg")

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