Trait MessageStore 

pub trait MessageStore: Send + Sync {
    // Required methods
    fn append<'life0, 'life1, 'async_trait>(
        &'life0 self,
        thread_id: &'life1 ThreadId,
        message: Message,
    ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn get_history<'life0, 'life1, 'async_trait>(
        &'life0 self,
        thread_id: &'life1 ThreadId,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<Message>, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn clear<'life0, 'life1, 'async_trait>(
        &'life0 self,
        thread_id: &'life1 ThreadId,
    ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn replace_history<'life0, 'life1, 'async_trait>(
        &'life0 self,
        thread_id: &'life1 ThreadId,
        messages: Vec<Message>,
    ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;

    // Provided method
    fn count<'life0, 'life1, 'async_trait>(
        &'life0 self,
        thread_id: &'life1 ThreadId,
    ) -> Pin<Box<dyn Future<Output = Result<usize, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait { ... }
}

Trait for storing and retrieving conversation messages. Implement this trait to persist messages to your storage backend.

Required Methods

fn append<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, message: Message, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

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

Append a message to the thread’s history

Errors

Returns an error if the message cannot be stored.

fn get_history<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, ) -> Pin<Box<dyn Future<Output = Result<Vec<Message>, Error>> + Send + 'async_trait>>

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

Get all messages for a thread

Errors

Returns an error if the history cannot be retrieved.

fn clear<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

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

Clear all messages for a thread

Errors

Returns an error if the messages cannot be cleared.

fn replace_history<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, messages: Vec<Message>, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

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

Replace the entire message history for a thread. Used for context compaction to replace old messages with a summary.

Errors

Returns an error if the history cannot be replaced.

Provided Methods

fn count<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, ) -> Pin<Box<dyn Future<Output = Result<usize, Error>> + Send + 'async_trait>>

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

Get the message count for a thread

Errors

Returns an error if the count cannot be retrieved.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T> MessageStore for Arc<T>

where T: MessageStore + ?Sized,

fn append<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, message: Message, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, Arc<T>: 'async_trait,

fn get_history<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, ) -> Pin<Box<dyn Future<Output = Result<Vec<Message>, Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, Arc<T>: 'async_trait,

fn clear<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, Arc<T>: 'async_trait,

fn count<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, ) -> Pin<Box<dyn Future<Output = Result<usize, Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, Arc<T>: 'async_trait,

fn replace_history<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, messages: Vec<Message>, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, Arc<T>: 'async_trait,

Implementors

impl MessageStore for InMemoryStore

impl MessageStore for SqliteStore

Available on crate feature sqlite only.