Struct FileStore 

pub struct FileStore { /* private fields */ }

File-system backed store. Each key is stored as a JSON file.

Useful for development and simple deployments where a database is overkill.

Implementations

impl FileStore

pub fn new(dir: impl Into<PathBuf>) -> Result<Self, StoreError>

Create a new FileStore that persists data in the given directory.

Creates the directory if it does not exist.

Trait Implementations

impl Store for FileStore

fn get( &self, key: &str, ) -> Pin<Box<dyn Future<Output = Result<Option<Value>, StoreError>> + Send + '_>>

Get a value by key. Returns None if not found.

fn put( &self, key: &str, value: Value, ) -> Pin<Box<dyn Future<Output = Result<(), StoreError>> + Send + '_>>

Put a value by key.

fn delete( &self, key: &str, ) -> Pin<Box<dyn Future<Output = Result<(), StoreError>> + Send + '_>>

Delete a value by key.

fn put_if_absent( &self, key: &str, value: Value, ) -> Pin<Box<dyn Future<Output = Result<bool, StoreError>> + Send + '_>>

Atomically store value only if key is absent; returns true if inserted.

fn compare_exchange( &self, _key: &str, _expected: Option<Value>, _value: Option<Value>, ) -> Pin<Box<dyn Future<Output = Result<bool, StoreError>> + Send + '_>>

Atomically replace or delete a value only if it equals expected.