SvelteKit Integration

// src/routes/api/billing/[...path]/+server.ts
import { billing } from "$lib/billing";
import { toSvelteKitHandler } from "better-billing/integrations/svelte-kit";

const handler = toSvelteKitHandler(billing.api);

export const GET = handler;
export const POST = handler;
export const PUT = handler;
export const DELETE = handler;
export const PATCH = handler;

// src/hooks.server.ts
import { billing } from "$lib/billing";
import { svelteKitHandler } from "better-billing/integrations/svelte-kit";
import type { Handle } from "@sveltejs/kit";

export const handle: Handle = async ({ event, resolve }) => {
  return svelteKitHandler({
    billing: {
      handler: billing.api.handler,
      options: { basePath: "/api/billing" },
    },
    event,
    resolve,
    building: false,
  });
};

// src/lib/billing.ts
import { betterBilling } from "better-billing";
import { corePlugin } from "better-billing/plugins/core";
import { stripePlugin } from "better-billing/plugins/stripe";

export const billing = betterBilling({
  plugins: [
    corePlugin({ ... }),
    stripePlugin({ ... }),
  ],
});

https://yourdomain.com/api/billing/stripe/webhook

// src/routes/dashboard/+page.server.ts
import { billing } from "$lib/billing";

export const load: PageServerLoad = async ({ locals }) => {
  const userId = locals.user?.id;
  
  return {
    subscriptions: await billing.providers.core.getBillableActiveSubscriptions({
      billableId: userId,
      billableType: "user",
    })
  };
};

// src/routes/subscribe/+page.server.ts
import { billing } from "$lib/billing";
import { fail } from "@sveltejs/kit";

export const actions = {
  subscribe: async ({ request, locals }) => {
    const data = await request.formData();
    
    try {
      return { subscription: await billing.providers.core.getBillableActiveSubscriptions({
        billableId: locals.user.id,
        billableType: "user",
      })};
    } catch (error) {
      return fail(400, { error: error.message });
    }
  }
};