Inserisci qui il codice...
Hello to all,
I'm not good with js because I start developing a few months ago and I
have a lot to learn but I'm trying to understand if it's possible to do
this:
- Create a service (for example in php that, with a given url, respond
with a descriprion of website (show test-2.php)
- TW Widget that call this service and include the result in TW feed or
if it's not possible create a new tiddler with the returned information
*It's possible what i'm trying to do? *
*test-2.php*
<?php
header('Content-type: text/html');
header('Access-Control-Allow-Origin: *');
$url = $_GET['url'];
$tags = get_meta_tags($url);
$description = $tags["description"];
echo '<br /> url: ';
print_r($url);
echo '<br /> description: ';
print_r($description);
?>
Tw Widget *$:/paulin/demo/getdata.js*:
/*\
title: $:/paulin/demo/getdata.js
type: application/javascript
module-type: macro
<<getdata "url">>
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
/*
* Testing: get data with ajax
*/
exports.name = "getdata";
exports.params = [
{ name: "url" }
];
/*
* Run the macro
*/
exports.run = function(url) {
var url = url || "None";
function ajax(url) {
return new Promise(function(resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.onload = function() {
resolve(this.responseText);
};
xhr.onerror = reject;
xhr.open('GET', url);
xhr.send();
});
}
var ret_val;
ajax('./test-2.php?url='+url).then(function(result) {
console.log('**** > '+result);
ret_val = result;
return result;
}).catch(function() {
console.log('Error');
ret_val = "An error occurred";
return "An error occurred";
});
console.log('----> '+ret_val);
return ret_val;
};
})();
Thanks.
Paulin
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