Struct FallbackKeyProvider 

pub struct FallbackKeyProvider<P, F> { /* private fields */ }

Tries a primary KeyProvider, falling back to a secondary provider when the primary returns KeyProviderError::NotConfigured.

Other error variants (KeyProviderError::InvalidKey, KeyProviderError::LoadError) are not retried — they indicate the provider was found but broken.

Example

use cipherstash_client::zerokms::{
    EnvKeyProvider, StaticKeyProvider, FallbackKeyProvider, KeyProvider, ClientKey,
};
use uuid::Uuid;

// Try env vars first, fall back to a static key
let provider = FallbackKeyProvider::new(
    EnvKeyProvider,
    StaticKeyProvider::new(fallback_key),
);
let key = provider.client_key().await.unwrap();

Implementations

impl<P: KeyProvider, F: KeyProvider> FallbackKeyProvider<P, F>

pub fn new(primary: P, fallback: F) -> Self

Create a new FallbackKeyProvider with the given primary and fallback providers.

Trait Implementations

impl<P: KeyProvider, F: KeyProvider> KeyProvider for FallbackKeyProvider<P, F>

async fn client_key(&self) -> Result<ClientKey, KeyProviderError>

Load a ClientKey from this provider.