opengraph library

@project : opengraph @author : Baldomero (datogedon@gmail.com) @link : https://github.com/baldomerocho/flutter_opengraph/ @Disc : a dart and flutter package to fetch and preview OpenGraph data

Classes

FaviconParser
Extracts the favicon declared by a Document head.
HtmlMetaParser
Takes a Document and parses OpengraphMetadata from <meta>, <title> and <img> tags
JsonLdParser
Takes a Document and parses OpengraphMetadata from json-ld data in <script>
OgAudio
An og:audio object with its structured properties.
OgImage
An og:image object with its structured properties.
OgMedia
Common fields of every OpenGraph media object.
OgVideo
An og:video object with its structured properties.
OpengraphCache
In-memory cache for opengraph_fetch results.
OpengraphCacheEntry
A cached entity together with the moment it was stored, as exchanged with an OpengraphCacheStore. Serializable, so stores can persist it as JSON.
OpengraphCacheStore
Pluggable persistence for OpengraphCache, so previews survive app restarts instead of living only in memory.
OpenGraphConfiguration
OpenGraphEntity
OpenGraphEntity represents the OpenGraph protocol Properties:
OpengraphFetch
OpengraphMetadata
Container class for Metadata
OpengraphMetadataAdapter
Adapter to convert between OpengraphMetadata and OpenGraphEntity
OpengraphMetadataParser
Does Works with BaseOpengraphParser
OpengraphParser
Takes a Document and parses OpengraphMetadata from <meta property='og:*'> tags
OpengraphPreview
A widget that fetches and displays OpenGraph data
OpenGraphRequest
OpenGraphRequest is a singleton class that fetches OpenGraph data from the given URL
OpenGraphRequestInterface
Interface for OpenGraphRequest
TwitterCardParser
Takes a Document and parses OpengraphMetadata from <meta property='twitter:*'> tags
WidgetOpenGraph
WidgetOpenGraph Widget Internal widget to show the OpenGraphEntity data This widget is used by OpenGraphPreview

Enums

OpenGraphLayout
How the preview card arranges its image and texts.

Functions

opengraph_fetch(String url, {bool throwOnError = false, Map<String, String>? headers, Duration? maxAge, Duration? timeout}) → Future<OpenGraphEntity?>
Fetch OpenGraph data from a URL and return it as an OpenGraphEntity
opengraph_fetch_raw(String url) → Future
Fetch OpenGraph data from a URL and return the raw metadata