# TryYourSize(publishableKey:configuration:)

> Creates the client for your publishable key.

Source: https://docs.tryyoursize.com/reference/ios/init/

*Constructor* · `TryYourSize (Swift)`

Creates the client for your publishable key. Keep one per app.

```swift
public init(publishableKey: String, configuration: Configuration = Configuration()) throws
```

## Parameters

- **`publishableKey`** (`String`, required): Your publishable key (`pk_test_…` / `pk_live_…`).
- **`configuration`** (`Configuration`, optional, default `Configuration()`): Appearance, language and the app identity. See `Configuration`(/reference/ios/configuration/).

## Errors

`TryYourSizeError` with code `secret_key_in_app`, `invalid_key`, `invalid_app_identifier` or `invalid_option`.

## Example

**Swift**

```swift
let tys = try TryYourSize(publishableKey: "pk_test_…", configuration: .init(
    appearance: Appearance(borderRadius: 10),
    locale: "es"))
```

**Kotlin**

```kotlin
val tys = TryYourSize(context, "pk_test_…", TryYourSize.Configuration(
    appearance = Appearance(borderRadius = 10f),
    locale = "es",
))
```

**React Native**

```tsx
await configure("pk_test_…", { appearance: { variables: { borderRadius: 10 } }, locale: "es" });
```

**Flutter**

```dart
final tys = await TryYourSize.create('pk_test_…', appearance: const Appearance(borderRadius: 10), locale: 'es');
```