asijs-sveltekit — SvelteKit adapter for AsiJS

Run your AsiJS application as SvelteKit server hooks and API endpoints.

Installation

bun add asijs-sveltekit

Requires asijs and @sveltejs/kit as peer dependencies.

Usage

Server Hook (src/hooks.server.ts)

Intercept all requests and route matching paths through AsiJS:

import { Asi } from "asijs";
import { createSvelteKitHook } from "asijs-sveltekit";

const app = new Asi();
app.get("/api/hello", () => ({ message: "Hello from AsiJS + SvelteKit!" }));
app.get("/api/users/:id", (ctx) => ({ id: ctx.params.id }));
app.post("/api/data", async (ctx) => {
  const body = await ctx.json();
  return { received: body };
});

export const handle = createSvelteKitHook(app, { basePath: "/api" });

API Endpoint (src/routes/api/[...asi]/+server.ts)

import { Asi } from "asijs";
import { createUniversalHandler } from "asijs-sveltekit";

const app = new Asi();
app.get("/api/hello", () => "Hello!");

export const GET = createUniversalHandler(app);
export const POST = createUniversalHandler(app);

Method-specific endpoint

import { createServerHandler } from "asijs-sveltekit";

export const GET = createServerHandler(app, "GET");  // Only GET — 405 for others
export const POST = createServerHandler(app, "POST");

API

| Export | Description | |--------|-------------| | createSvelteKitHook(app, opts?) | handle hook — AsiJS handles API routes, rest passes through | | createServerHandler(app, method, opts?) | Method-specific handler (returns 405 for others) | | createUniversalHandler(app, opts?) | Handles all HTTP methods on the same endpoint | | sveltekitPlugin(app, opts?) | AsiJS plugin for SvelteKit |

Options

interface SvelteKitAdapterOptions {
  basePath?: string;   // Path prefix filter (default: "/api")
  verbose?: boolean;    // Enable request logging
  onError?: (error: Error) => Response;
}

How it works

The handle hook intercepts every request. If the URL starts with basePath (default /api), it routes through AsiJS. If AsiJS returns a route, the response is returned directly. If AsiJS returns 404 (unknown route), the request falls through to SvelteKit's normal resolver — so your existing SvelteKit routes are unaffected.

License

MIT