Trait gotham::middleware::session::Backend

pub trait Backend: Send {
    fn persist_session(
        &self, 
        state: &State, 
        identifier: SessionIdentifier, 
        content: &[u8]
    ) -> Pin<Box<SetSessionFuture>>;
    fn read_session(
        &self, 
        state: &State, 
        identifier: SessionIdentifier
    ) -> Pin<Box<GetSessionFuture>>;
    fn drop_session(
        &self, 
        state: &State, 
        identifier: SessionIdentifier
    ) -> Pin<Box<SetSessionFuture>>;
}

A Backend receives session data and stores it, and recalls the session data subsequently.

All session data is serialized into a Vec<u8> which is treated as opaque by the backend. The serialization format is subject to change and must not be relied upon by the Backend.

Required methods

fn persist_session(
    &self,
    state: &State,
    identifier: SessionIdentifier,
    content: &[u8]
) -> Pin<Box<SetSessionFuture>>

Persists a session, either creating a new session or updating an existing session.

fn read_session(
    &self,
    state: &State,
    identifier: SessionIdentifier
) -> Pin<Box<GetSessionFuture>>

Retrieves a session from the underlying storage.

The returned future will resolve to an Option<Vec<u8>> on success, where a value of None indicates that the session is not available for use and a new session should be established.

fn drop_session(
    &self,
    state: &State,
    identifier: SessionIdentifier
) -> Pin<Box<SetSessionFuture>>

Drops a session from the underlying storage.

Implementors

impl Backend for MemoryBackend