MetadataExtractor class

The main metadata extraction engine

Constructors

MetadataExtractor.new({Client? client, UrlOptimizer? urlOptimizer, ImageUrlAnalyzer? imageAnalyzer, MetadataCache? cache, Duration timeout = const Duration(seconds: 10), String? userAgent, bool cacheEnabled = true, Duration cacheDuration = const Duration(hours: 4), bool followRedirects = true, bool optimizeUrls = true, int maxRedirects = 5, bool analyzeImages = true, bool extractStructuredData = true, bool extractSocialMetrics = false, bool analyzeContent = false, String? proxyUrl})
Creates a new instance of MetadataExtractor

Properties

analyzeContent → bool
Whether to analyze content
final
analyzeImages → bool
Whether to analyze images
final
cacheDuration → Duration
How long to cache results
final
cacheEnabled → bool
Whether to use the cache
final
extractSocialMetrics → bool
Whether to extract social engagement metrics
final
extractStructuredData → bool
Whether to extract structured data
final
followRedirects → bool
Whether to follow redirects
final
hashCode → int
The hash code for this object.
no setterinherited
maxRedirects → int
Maximum number of redirects to follow
final
optimizeUrls → bool
Whether to optimize URLs
final
proxyUrl → String?
Optional proxy URL to use for requests (helps with CORS on web)
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
timeout → Duration
Timeout duration for HTTP requests
final
userAgent → String?
Custom user agent to use for HTTP requests
final

Methods

dispose() → void
Closes the HTTP client and other resources
extract(String url, {bool skipCache = false}) → Future<LinkMetadata>
Extracts metadata from the given URL
extractMultiple(List<String> urls, {bool skipCache = false, int concurrentRequests = 3}) → Future<List<LinkMetadata>>
Extracts metadata for multiple URLs in parallel
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

withSharedCache({Client? client, Duration timeout = const Duration(seconds: 10), String? userAgent, bool followRedirects = true, bool optimizeUrls = true, int maxRedirects = 5, bool analyzeImages = true, bool extractStructuredData = true, bool extractSocialMetrics = false, bool analyzeContent = false, Future<MetadataCache>? customCache()?, String? proxyUrl}) → Future<MetadataExtractor>
Creates an instance with a shared cache