Struct PublicKeyCache 

pub struct PublicKeyCache { /* private fields */ }

Public key cache with automatic refresh and retry logic.

Handles fetching and caching of Firebase’s public keys used for JWT verification. Keys are automatically refreshed based on the configured cache duration.

Implementations

impl PublicKeyCache

pub fn new(cache_duration_seconds: u64) -> Result<Self, FirebaseAuthError>

Creates a new public key cache with the specified cache duration.

Arguments

• cache_duration_seconds - How long to cache keys before refreshing

Errors

Returns FirebaseAuthError::ConfigError if HTTP client creation fails.

pub async fn get_key(&self, kid: &str) -> Result<DecodingKey, FirebaseAuthError>

Retrieves a decoding key for the given key ID.

Automatically refreshes the cache if needed and handles key rotation.

Arguments

• kid - The key ID from the JWT header

Errors

Returns various FirebaseAuthError types for validation or fetch failures.

Trait Implementations

impl Clone for PublicKeyCache

fn clone(&self) -> PublicKeyCache

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.