# Svelte Adapter API — repStore() and repSecureStore()

> API reference for @rep-protocol/svelte. repStore() creates a readable store for public variables with SSE hot reload. repSecureStore() for async encrypted variable access.

Source: https://rep-protocol.dev/reference/adapters/svelte/

```bash
npm install @rep-protocol/svelte @rep-protocol/sdk
```

## `repStore(key, defaultValue?)`

```typescript
function repStore(key: string, defaultValue?: string): Readable<string | undefined>;
```

Reads a PUBLIC tier variable as a Svelte `Readable` store.

| Parameter | Type | Description |
|---|---|---|
| `key` | `string` | Variable name |
| `defaultValue` | `string` | Optional fallback value |

**Returns:** `Readable<string | undefined>`

**Behavior:**
- Synchronous initial value from the payload
- SSE subscription is **lazy** — established only when the store has subscribers
- Updates automatically on config changes via hot reload
- SSE connection closes when all subscribers unsubscribe

## `repSecureStore(key)`

```typescript
function repSecureStore(key: string): Readable<string | null>;
```

Reads a SENSITIVE tier variable as a `Readable` store.

| Parameter | Type | Description |
|---|---|---|
| `key` | `string` | Variable name |

**Returns:** `Readable<string | null>`

**Behavior:**
- Starts as `null`
- Resolves after session key fetch and decryption
- Errors are swallowed (SDK logs them); store stays `null`
- Does **not** support hot reload

## Requirements

- Svelte >= 4 or Svelte 5
- `@rep-protocol/sdk` peer dependency