Use subscription management on its own

This is the lower-level API for building custom checkout UIs: the subscription store and service methods that <PlanSelector> and <BridgePaywall> are built on under the hood. Reach for it when you need a plan picker or checkout flow the drop-in components can’t express; otherwise consume billing state from the bridge object as shown in How billing works.

Subscription state store

subscriptionStore is a readable Svelte store that holds the checkout-flow state. Call loadSubscription() to populate it.

In a .svelte component, read it reactively with the $ prefix:

<script lang="ts">
  import { subscriptionStore, loadSubscription } from '@nebulr-group/bridge-svelte';

  // Trigger a fetch (e.g. on mount, after sign-in, after the Stripe redirect)
  loadSubscription();
</script>

{#if $subscriptionStore.loading}
  <p>Loading plans…</p>
{:else if $subscriptionStore.status?.shouldSelectPlan}
  <p>Pick a plan to continue.</p>
{/if}

In plain .ts code the $ prefix isn’t available (and destructuring a store isn’t reactive); take a one-off imperative read with get():

import { get } from 'svelte/store';
import { subscriptionStore, loadSubscription } from '@nebulr-group/bridge-svelte';

await loadSubscription();

const { status, plans, loading, error } = get(subscriptionStore);

Store shape:

interface SubscriptionState {
  status: SubscriptionStatus | null;  // null until first load
  plans:  Plan[] | null;              // null until first load
  loading: boolean;
  error:  string | null;
}

subscriptionStore is shared across all components. Calling loadSubscription() once from a parent page is enough.

Individual service methods

For custom UIs that don’t use <PlanSelector>, call the service methods directly:

import { getBridgeAuth, loadSubscription } from '@nebulr-group/bridge-svelte';

getSubscriptionStatus(): fetch the subscription status of the current workspace (called a tenant in the API):

const status = await getBridgeAuth().getSubscriptionStatus();
// status.shouldSelectPlan  → show plan picker
// status.paymentFailed     → show payment error + portal link
// status.trial             → show trial countdown
// status.paymentsEnabled   → billing is active

getPlans(): fetch all available plans:

const plans = await getBridgeAuth().getPlans();
// plan.prices[n].amount === 0  → free plan (no Stripe needed)

The plan catalog is also available on the bridge object as await bridge.app.plans (fetched on first access and cached).

selectFreePlan(planKey): immediately activate a free plan:

await getBridgeAuth().selectFreePlan('free');
await loadSubscription(); // refresh the store

startCheckout(planKey, priceOffer, options): create a Stripe Checkout session and redirect. Pass one of the plan’s price offers (from getPlans()):

const plans = await getBridgeAuth().getPlans();
const pro = plans.find((p) => p.key === 'pro')!;
const monthly = pro.prices.find((pr) => pr.recurrenceInterval === 'month')!;

const session = await getBridgeAuth().startCheckout('pro', monthly, {
  successUrl: 'https://yourapp.com/subscription/success',
  cancelUrl: 'https://yourapp.com/subscription/cancel',
});

if (session.sessionId === null) {
  // Stripe isn't configured on this app; the plan was set directly
  await loadSubscription();
} else {
  window.location.href = session.checkoutUrl!;
}

Relative successUrl / cancelUrl paths are resolved against the current origin, so /subscription/success works too.

changePlan(planKey, priceOffer): switch an active subscriber to a different plan:

Requires status.paymentsEnabled === true. Use startCheckout for new subscribers.

const enterprise = plans.find((p) => p.key === 'enterprise')!;
await getBridgeAuth().changePlan('enterprise', enterprise.prices[0]);
await loadSubscription();

Subscription state reference

| SubscriptionStatus field | Type | Meaning | |----------------------------|------|---------| | shouldSelectPlan | boolean | No plan chosen yet: show the plan picker | | shouldSetupPayments | boolean | Paid plan selected but checkout not completed | | paymentFailed | boolean | Last Stripe invoice failed: direct the user to the portal | | paymentsEnabled | boolean | Active billing subscription | | paymentsAutoRedirect | boolean | When false, the workspace has opted out of the platform’s native plan-selection gate | | trial | boolean | Currently in trial period | | plan | Plan \| string \| undefined | Current plan. The REST endpoint returns the full Plan object; JWT-derived paths return the plan key as a string |

Decision tree:

shouldSelectPlan    → show plan picker (or just use <BridgePaywall>)
paymentFailed       → show error banner + "Manage billing" + plan cards (to switch)
shouldSetupPayments → send user through startCheckout again
trial / active      → show plan cards in "change" mode (current plan highlighted)