Class PostgresChatMessageHistory

constructor

• new PostgresChatMessageHistory(
      fields: PostgresChatMessageHistoryInput,
  ): PostgresChatMessageHistory

  Creates a new PostgresChatMessageHistory.

  Parameters

  • fields: PostgresChatMessageHistoryInput

    The input fields for the PostgresChatMessageHistory.

    Type definition for the input parameters required when instantiating a PostgresChatMessageHistory object.

    • OptionalescapeTableName?: boolean

      If true, the table name will be escaped. ('lAnGcHaIn' will be escaped to '"lAnGcHaIn"')

    • Optionalpool?: pg.Pool

      Postgres pool to use. If provided the PostgresChatMessageHistory object will use the provided pool. Otherwise it will create a new pool using the provided configuration.

    • OptionalpoolConfig?: pg.PoolConfig

      Configuration object for the Postgres pool. If provided the PostgresChatMessageHistory object will create a new pool using the provided configuration. Otherwise it will use the provided pool.

    • sessionId: string

      Session ID to use when storing and retrieving chat message history.

    • OptionaltableName?: string

      Name of the table to use when storing and retrieving chat message

  Returns PostgresChatMessageHistory

  Throws

  If neither pool nor poolConfig is provided.

lc_namespace

pool

sessionId

tableName

addMessage

• addMessage(message: BaseMessage): Promise<void>

  Parameters

  • message: BaseMessage

  Returns Promise<void>

clear

• clear(): Promise<void>

  Returns Promise<void>

end

• end(): Promise<void>

  End the Postgres pool.

  Returns Promise<void>

getMessages

• getMessages(): Promise<BaseMessage[]>

  Returns Promise<BaseMessage[]>