Google Apps Script, UrlFetchApp and JQuery
Question
I would like to load a web page every day (perhaps more times a day), parse its data and email results.
To parse the web page I am using a parse.gs script like the following:
var url="http://http://example.com";
var page = UrlFetchApp.fetch(url).getContentText();
var XmlDoc = Xml.parse(page, true);
When I parse XmlDoc I have only getElement/s functions available and I find it difficult to do an effective job. So I would like to use something more productive, like the JQuery selectors.
As far as I understood I have to add a jquery.html page to the project like:
<html>
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.1/jquery.min.js"></script>
</html>
Then add to parse.gs the function:
function doGet() {
return HtmlService.createHtmlOutputFromFile('jquery');
}
After calling doGet , how do I parse XmlDoc ? Using lines like $('#content').html(XmlDoc); doesn't work.
1 answers
solution1
1 2013-06-01 02:20:34
As an alternative to jquery, try building on the capabilities of the Xml Service entirely in apps-script.
A previous answer introduced a utility function that locates elements in the XML Document by searching for properties matching the search criteria.
getElementByVal( body, 'input', 'value', 'Go' )
... will find
<input type="submit" name="btn" value="Go" id="btn" class="submit buttonGradient" />
It also showed one possible specialization, for searching 'id' attributes of <div> s:
getDivById( html, 'tagVal' )
... will find <div id="tagVal">
If you are able to identify an element uniquely, as in the above examples, a simple script can get you that element easily:
var url="http://http://example.com";
var page = UrlFetchApp.fetch(url).getContentText();
// Get <div id="content">
var contentDiv = getDivById( pageDoc.getElement().body, 'content' );
...
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