This library provides structure of rich information link and parser from HTML documentations.
- Add
oghref_model
intopubspec.yaml
dependencies: oghref_model: # Latest stable version
- Import package
import 'package:oghref_model/model.dart';
- If custom parser implementations required, please also import
buffer_parser.dart
import 'package:oghref_model/buffer_parser.dart';
See example;
-
MetaFetch
only recognize the first property name prefix in a sequence of<meta>
tag in<head>
. For example, given a HTML file:<head> <meta property="og:title" content="Title"/> <meta property="twitter:card" content="summary"/> </head>
In this case,
MetaFetch
only recognizeog
prefix and remaining metadata will be ignored. If preferred to override the first property prefix recognization, please apply this setting inMetaFetch
(in this case, Twitter Card):MetaFetch()..primaryPrefix = "twitter";
-
Unless for testing, URL response's content type must be satisified below:
text/html
application/xhtml+xml
Otherwise,
MetaFetch
refuses to parse properties toMetaInfo
. -
<meta>
must be hard-coded in HTML, generated by JavaScript will be ignored. -
Flutter web uses AJAX to fetch content of website, which means it relys on cross origin enabled website. However, majority of websites omits
Access-Control-Allow-Origin
or only allows specific website for security reason. Therefore, the best practise is using server-side to complete retrive data process.
AGPL 3.0 or later (For import dedicatedly)
MIT (For import with widgets)