Services

Every service in KatanaKit follows the same architecture: a small public API over a pure core, with the runtime I/O isolated behind it and SSR guards where the browser or Node/Bun is touched. Two public shapes exist, and both are re-exported as use* helpers from the package root:

• Singleton facade classes — FetchApiManager, DatesService, LoggerService, … expose use* methods and a getInstance() accessor.
• Function modules with strategies — DOM, storage, theme, viewport, observer and friends ship standalone use* functions; behavior is swapped through strategy objects (for example, LocalStorageStrategy, SessionStorageStrategy and MemoryStorageStrategy behind the storage API).

// Class-based facade
import { FetchApiManager } from "katanakit-js";

const api = FetchApiManager.getInstance();
api.useGetApi("pokeapi", "pokemonById", { params: { id: 25 } });

// Function module — same contract, no instance
import { useGetApi } from "katanakit-js";

useGetApi("pokeapi", "pokemonById", { params: { id: 25 } });

The API Reference is generated from the source; the pages below are the hand-written reference companion: an overview paragraph, a quick example and one section per method with runnable examples.

Core

Service	Description
HTTP Client	Register APIs, build URLs and call every HTTP method with Safe Results.
Logger	Log at every level with a small, replaceable logger and table output.
Storage	Typed local and session storage with an SSR-safe in-memory fallback.
DOM	SSR-safe DOM queries, element creation, attributes, classes and scroll.
Reactive	Signals, effects, memos and toggles for reactive state.
Formatter	Locale-aware number, currency and date formatting.
Converter	Unit conversions for temperature, distance and weight.
Error Helpers	Attempt, JSON parsing, normalize and serialize for unknown throws.
Generator	IDs, slugs, tokens and other generated values with zero dependencies.
Dates	Temporal-based date math: now, add or subtract days, boundaries.
Geometry	Area, perimeter and volume helpers with formatted output.
Timing	Delays, intervals, debounce, throttle and retry helpers.
Viewport	Viewport size, scroll position, media queries and prefers-* state.
Observer	Create and manage Intersection, Resize and Mutation observers.
Worker	Spawn workers, run functions off-thread and manage worker pools.

Platform

Service	Description
Theme	Dark and light mode with persistence, system preference and DOM sync.
Astro Adapter	Typed static paths and service access from Astro pages and endpoints.
RSS	Build RSS endpoints and parse feeds for content channels and embeds.
SEO	Generate HTML head and Open Graph tags from a single flat config.

Integrations

Service	Description
Nuxt Adapter	Nuxt composables and server-plugin helpers for the HTTP client.
Vue Adapter	Vue reactivity wrappers around the HTTP client and query cache.
Express Server	Start an Express server with the toolkit defaults and API config.