Struct CachingSessionStore

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pub struct CachingSessionStore<Cache: SessionStore, Store: SessionStore> { /* private fields */ }
Expand description

Provides a layered caching mechanism with a cache as the frontend and a store as the backend..

Contains both a cache, which acts as a frontend, and a store which acts as a backend. Both cache and store implement SessionStore.

By using a cache, the cost of reads can be greatly reduced as once cached, reads need only interact with the frontend, forgoing the cost of retrieving the session record from the backend.

§Examples

use tower_sessions::CachingSessionStore;
use tower_sessions_moka_store::MokaStore;
use tower_sessions_sqlx_store::{SqlitePool, SqliteStore};
let pool = SqlitePool::connect("sqlite::memory:").await.unwrap();
let sqlite_store = SqliteStore::new(pool);
let moka_store = MokaStore::new(Some(2_000));
let caching_store = CachingSessionStore::new(moka_store, sqlite_store);

Implementations§

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impl<Cache: SessionStore, Store: SessionStore> CachingSessionStore<Cache, Store>

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pub fn new(cache: Cache, store: Store) -> Self

Create a new CachingSessionStore.

Trait Implementations§

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impl<Cache: Clone + SessionStore, Store: Clone + SessionStore> Clone for CachingSessionStore<Cache, Store>

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fn clone(&self) -> CachingSessionStore<Cache, Store>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<Cache: Debug + SessionStore, Store: Debug + SessionStore> Debug for CachingSessionStore<Cache, Store>

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

Formats the value using the given formatter. Read more
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impl<Cache, Store> SessionStore for CachingSessionStore<Cache, Store>
where Cache: SessionStore, Store: SessionStore,

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fn create<'life0, 'life1, 'async_trait>( &'life0 self, record: &'life1 mut Record, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Creates a new session in the store with the provided session record. Read more
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fn save<'life0, 'life1, 'async_trait>( &'life0 self, record: &'life1 Record, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Saves the provided session record to the store. Read more
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fn load<'life0, 'life1, 'async_trait>( &'life0 self, session_id: &'life1 Id, ) -> Pin<Box<dyn Future<Output = Result<Option<Record>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Loads an existing session record from the store using the provided ID. Read more
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fn delete<'life0, 'life1, 'async_trait>( &'life0 self, session_id: &'life1 Id, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Deletes a session record from the store using the provided ID. Read more

Auto Trait Implementations§

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impl<Cache, Store> Freeze for CachingSessionStore<Cache, Store>
where Cache: Freeze, Store: Freeze,

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impl<Cache, Store> RefUnwindSafe for CachingSessionStore<Cache, Store>
where Cache: RefUnwindSafe, Store: RefUnwindSafe,

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impl<Cache, Store> Send for CachingSessionStore<Cache, Store>

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impl<Cache, Store> Sync for CachingSessionStore<Cache, Store>

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impl<Cache, Store> Unpin for CachingSessionStore<Cache, Store>
where Cache: Unpin, Store: Unpin,

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impl<Cache, Store> UnwindSafe for CachingSessionStore<Cache, Store>
where Cache: UnwindSafe, Store: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more