Struct FileSessionDataStore 

pub struct FileSessionDataStore { /* private fields */ }

File-system SessionDataStore backed by JSON files.

Each session’s data is stored in a single JSON file under the configured directory. No external dependencies — uses tokio::task::spawn_blocking with std::fs for blocking I/O. Per-session locking prevents concurrent writes to the same file.

Implementations

impl FileSessionDataStore

pub fn new(base_dir: impl Into<PathBuf>) -> Self

Creates a new file-backed store rooted at base_dir.

The directory is created lazily on the first set call.

Trait Implementations

impl Debug for FileSessionDataStore

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl SessionDataStore for FileSessionDataStore

fn set<'life0, 'async_trait>( &'life0 self, session_id: Uuid, key: String, value: Value, ) -> Pin<Box<dyn Future<Output = Result<(), SessionDataError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Stores a value under (session_id, key), overwriting any existing value.

fn get<'life0, 'life1, 'async_trait>( &'life0 self, session_id: Uuid, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<Value>, SessionDataError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Retrieves the value stored under (session_id, key).

fn delete<'life0, 'life1, 'async_trait>( &'life0 self, session_id: Uuid, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<(), SessionDataError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Deletes the value stored under (session_id, key).