如何發佈到表單並截圖結果？

要發佈到表單，您必須首先獲取要發布的表單的URL。為此，通過查看網頁的源代碼來獲取HTML表單，該源代碼看起來可能像這樣。

<form action="http://www.example.com/login.php" method="post">
   <div class="FormRow">
      <label>Username</label>
      <input type="text" name="username" value="">
   </div>
   <div class="FormRow">
      <label>Password</label>
      <input type="password" name="password" value="">
   </div>
   <input type="submit" class="submit" value="Login">
</form>

獲得表單的URL後，您需要指定每個表單輸入的名稱和值，以便目標網站不會拒絕該帖子。下面是一個示例。

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GrabzItClient grabzIt = new GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret");

ImageOptions options = new ImageOptions();
options.AddPostParameter("username", "bob");
options.AddPostParameter("password", "pass");

grabzIt.URLToImage("http://www.example.com/login.php", options);
grabzIt.Save("http://www.mywebsite.com/handler.ashx");

GrabzItClient grabzIt = new GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret");

ImageOptions options = new ImageOptions();
options.AddPostParameter("username", "bob");
options.AddPostParameter("password", "pass");

grabzIt.URLToImage("http://www.example.com/login.php", options);
grabzIt.Save("http://www.mywebsite.com/handler");

<script src="https://cdn.jsdelivr.net/npm/@grabzit/js@3.4.8/grabzit.min.js"></script>
<script>
GrabzIt("Sign in to view your Application Key").AddPostVariable("username", "bob").AddPostVariable("password", "pass")
.ConvertURL("http://www.example.com/login.php").Create();
</script>

在node.js中指定發布數據時，必須對每個發布變量的名稱和值進行URL編碼。

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.example.com/login.php", {"postData":"username=bob&password=pass"});
client.save("http://www.example.com/handler", 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");

$options = GrabzItImageOptions->new();
$options->AddPostParameter("username", "bob");
$options->AddPostParameter("password", "pass");

$grabzIt->URLToImage("http://www.example.com/login.php", $options);
$grabzIt->Save("http://www.mywebsite.com/handler.pl");

$grabzIt = new \GrabzIt\GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret");

$options = new \GrabzIt\GrabzItImageOptions();
$options->AddPostParameter("username", "bob");
$options->AddPostParameter("password", "pass");

$grabzIt->URLToImage("http://www.example.com/login.php", $options);
$grabzIt->Save("http://www.mywebsite.com/handler.php");

grabzIt = GrabzItClient.GrabzItClient("Sign in to view your Application Key", "Sign in to view your Application Secret")

options = GrabzItImageOptions.GrabzItImageOptions()
options.AddPostParameter("username", "bob");
options.AddPostParameter("password", "pass");

grabzIt.URLToImage("http://www.example.com/login.php", options)
grabzIt.Save("http://www.mywebsite.com/handler.py")

請記住，提出要求時請確保所有參數值是URL編碼的。請注意，每個POST名稱和值也必須先進行URL編碼。

https://api.grabz.it/services/convert.ashx?key=Sign in to view your Application Key&post=username%3Dbob%26password%3Dpass&format=jpg&url=http%3A%2F%2Fwww.example.com%2Flogin.php

grabzIt = GrabzIt::Client.new("Sign in to view your Application Key", "Sign in to view your Application Secret")

options = GrabzIt::ImageOptions.new()
options.add_post_parameter("username", "bob");
options.add_post_parameter("password", "pass");

grabzIt.url_to_image("http://www.example.com/login.php", options)
grabzIt.save("http://www.mywebsite.com/handler/index")

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