Struct FileChatMessageHistory 

pub struct FileChatMessageHistory { /* private fields */ }

File message history implementation, aligned with LangChain’s FileChatMessageHistory Uses JSONL format, one JSON object per line

Implementations

impl FileChatMessageHistory

pub async fn new(session_id: String, file_path: PathBuf) -> Result<Self>

Create a new file message history instance

pub async fn save_session_history(&self) -> Result<()>

Save session history to file (entire session as a JSON object)

pub async fn add_user_message(&self, content: String) -> Result<()>

Add user message, aligned with LangChain’s add_user_message

pub async fn add_ai_message(&self, content: &str) -> Result<()>

Add AI message to history

pub async fn get_messages(&self) -> Result<Vec<ChatMessageRecord>>

Get all messages, aligned with LangChain’s get_messages

pub async fn clear(&self) -> Result<()>

Clear all messages

Trait Implementations

impl Clone for FileChatMessageHistory

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FileChatMessageHistory

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

Formats the value using the given formatter.