searchSymbolsStreamer method
- String query
override
Search for symbols matching query. Called once per debounced
keystroke — the chart takes only the stream's first emission, so a
single result (or an empty "[]") is enough; no need to keep pushing
updates for the same query.
Same JSON shape as optionSymbols (array of symbol objects).
Implementation
@override
Stream<String> searchSymbolsStreamer(String query) =>
_symbolSearchChannel.receiveBroadcastStream(query).cast<String>();