I came across a wonderful web-service called Webthumb for taking snapshot of a website. I created a small Ruby on Rails application for using it. It's a very simple API and my Web App was ready in 10 minutes.
I will be showing here some code of controllers and views. For basics of creating a Ruby on Rails APP refer to my earlier post Ruby on Rails + Netbeans: creating a web App in 10 mins
In this APP I take name of a website from user and then I display it's snapshot.
For initial setup refer to following Readme
Since I want to display the snapshot on my APP I will be using EasyThumb. Below is code of controller that receives the website name and send it EasyThumb. EasyThumb takes a snapshot of the requested website and returns the URL of the snapshot.
def display_sanpshot
name = params[:website_name]
et = EasyThumb.new('YOUR_API_KEY', 'USER_ID')
@image_url = et.build_url(:url => name , :size => :large, :cache => 1)
end
In the above code image_url contains the URL of snapshot. Below is the View code where I display the snapshot
<html>
<head>
<title>web thumb</title>
<style type="text/css">
.thumbnail {
position: relative;
}
.thumbnailMessage {
position: absolute;
top: 0;
left: 0;
width: 200px;
height: 200px;
background: gray;
text-align: center;
}
</style>
</head>
<body>
<div class="thumbnail">
<img src = "<%= @image_url %>"
title="Generated Thumbnail" width=200 height=200
onload="document.getElementById('tmessage1').style.display = 'none'"
>
<div class="thumbnailMessage" id="tmessage1">
The image is being generated please wait
</div>
</div>
</body>
</html>
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