Struct Youtube 

pub struct Youtube { /* private fields */ }

YouTube TranscriptSource.

Holds a single reqwest::Client reused across the watch-page, InnerTube, and timedtext calls. Cheap to construct; in steady state it is fine to keep one instance per process.

On first use, a visitorData token is scraped from the watch page and cached in tokio::sync::OnceCell. Concurrent first-callers serialise on a single fetch rather than double-fetching, and every subsequent InnerTube /player POST forwards the cached token.

Implementations

impl Youtube

pub fn new() -> Result<Self>

Construct a YouTube source with default HTTP settings (30 s timeout, ANDROID_VR User-Agent) targeting the public YouTube origin.

pub fn with_base_url(base_url: impl Into<String>) -> Result<Self>

Construct a YouTube source pointed at an alternate origin. Used by tests to inject a wiremock::MockServer::uri(). The HTTP client retains the production timeout and User-Agent so request shape matches the real client.

Trait Implementations

impl Clone for Youtube

fn clone(&self) -> Youtube

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Youtube

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl TranscriptSource for Youtube

fn name(&self) -> &'static str

Stable, lowercase identifier for the source (e.g. "youtube"). Used in error messages, the Transcript::source field, and as the CLI subcommand name.

fn matches(url: &str) -> bool

Whether this source recognises url as one of its locators. Used by future auto-detection (omni-dev transcript fetch <url>).

fn fetch<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, locator: &'life1 str, opts: &'life2 FetchOpts, ) -> Pin<Box<dyn Future<Output = Result<Transcript>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Resolve locator to a transcript matching opts.

fn list_languages<'life0, 'life1, 'async_trait>( &'life0 self, locator: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Vec<LanguageInfo>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

List the caption tracks available on locator.

fn info<'life0, 'life1, 'async_trait>( &'life0 self, locator: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<MediaInfo>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Fetch top-level metadata about locator.