Class BaseChatMessageHistory`Abstract`

Base class for all chat message histories. All chat message histories should extend this class.

Hierarchy (view full)

Serializable
- BaseChatMessageHistory
  - FakeChatMessageHistory

Index

Constructors

Methods

addAIChatMessage addMessage addMessages addUserMessage clear getMessages toJSON toJSONNotImplemented

Constructors

constructor

new BaseChatMessageHistory(kwargs?, ..._args): BaseChatMessageHistory
Parameters
- Optionalkwargs: SerializedFields
- Rest..._args: never[]
Returns BaseChatMessageHistory
Inherited from Serializable.constructor
- Defined in langchain-core/src/load/serializable.ts:143

Methods

`Abstract`addAIChatMessage

addAIChatMessage(message): Promise<void>
Parameters
- message: string
Returns Promise<void>
- Defined in langchain-core/src/chat_history.ts:17

`Abstract`addMessage

addMessage(message): Promise<void>
Parameters
- message: BaseMessage
Returns Promise<void>
- Defined in langchain-core/src/chat_history.ts:13

addMessages

addMessages(messages): Promise<void>
Add a list of messages.

Implementations should override this method to handle bulk addition of messages in an efficient manner to avoid unnecessary round-trips to the underlying store.
Parameters
- messages: BaseMessage[]
  A list of BaseMessage objects to store.
Returns Promise<void>
- Defined in langchain-core/src/chat_history.ts:27

`Abstract`addUserMessage

addUserMessage(message): Promise<void>
Parameters
- message: string
Returns Promise<void>
- Defined in langchain-core/src/chat_history.ts:15

`Abstract`clear

clear(): Promise<void>
Returns Promise<void>
- Defined in langchain-core/src/chat_history.ts:33

`Abstract`getMessages

getMessages(): Promise<BaseMessage[]>
Returns Promise<BaseMessage[]>
- Defined in langchain-core/src/chat_history.ts:11

toJSON

toJSON(): Serialized
Returns Serialized
Inherited from Serializable.toJSON
- Defined in langchain-core/src/load/serializable.ts:147

toJSONNotImplemented

toJSONNotImplemented(): SerializedNotImplemented
Returns SerializedNotImplemented
Inherited from Serializable.toJSONNotImplemented
- Defined in langchain-core/src/load/serializable.ts:221