fb.system API and plugin discovery

listApis()

Lists available APIs. Optional booleans control inclusion of internal and external registrations. Resolves with { apis }, a SystemApiInfo[] rather than a string array, or with a failure envelope.

const res = await fb.system.listApis(true, true);
if (res.success === false) throw new Error(res.error);
// res.apis: [{ fullName, namespace, method, description, version, isExternal, ... }, ...]

getApiStats()

Returns API registration statistics as SystemGetApiStatsResponse (SystemApiStatsResponse remains as an alias).

const stats = await fb.system.getApiStats();
if (stats.success === false) throw new Error(stats.error);
console.log(stats.totalApis, stats.byNamespace.playback);

getApisByNamespace(namespace)

Resolves with { apis }, the SystemApiInfo[] of a namespace; empty for an unknown namespace.

const res = await fb.system.getApisByNamespace('playback');

searchApis(query)

Searches registered API metadata and resolves with { apis }, a SystemApiInfo[].

const res = await fb.system.searchApis('volume');

getRegisteredPlugins()

Lists the external plugins that registered methods with the bridge. Resolves with { plugins }, a SystemPluginInfo[]; each entry has name, namespace (unique among plugins), version, author, description, apis (full method names) and apiCount (the length of apis).

const res = await fb.system.getRegisteredPlugins();
if (res.success === false) throw new Error(res.error);
for (const p of res.plugins) console.log(`${p.namespace} ${p.version}: ${p.apiCount} methods`);

isPluginRegistered(namespace)

Checks whether an external plugin namespace is registered.

const r = await fb.system.isPluginRegistered('my_plugin');
if (r.success === false) throw new Error(r.error);
if (r.registered) { /* ... */ }

getTheme() / getDPI() / getLocale()

getTheme() returns the system theme as { darkMode, isDark, accentColor, transparency } and getDPI() returns { dpi, scale }. getLocale() returns the Windows user locale as { locale, language, country }: locale is a tag such as en-US, and en-US when Windows does not report one; language and country are the localized language and country or region names, empty when unavailable.

const res = await fb.system.getTheme();
if (res.success === false) throw new Error(res.error);
const { isDark } = res;
document.documentElement.dataset.theme = isDark ? 'dark' : 'light';

const res2 = await fb.system.getDPI();
if (res2.success === false) throw new Error(res2.error);
const { dpi } = res2;
const res3 = await fb.system.getLocale();
if (res3.success === false) throw new Error(res3.error);
const { locale } = res3;
console.log(`DPI: ${dpi}; locale: ${locale}`);