@langchain/community/dist/stores/message/momento.d.ts.map

Third-party integrations for LangChain.js

{"version":3,"file":"momento.d.ts","names":["ICacheClient","BaseListChatMessageHistory","BaseMessage","MomentoChatMessageHistoryProps","MomentoChatMessageHistory","Promise"],"sources":["../../../src/stores/message/momento.d.ts"],"sourcesContent":["import { ICacheClient } from \"@gomomento/sdk-core\";\nimport { BaseListChatMessageHistory } from \"@langchain/core/chat_history\";\nimport { BaseMessage } from \"@langchain/core/messages\";\n/**\n * The settings to instantiate the Momento chat message history.\n */\nexport interface MomentoChatMessageHistoryProps {\n    /**\n     * The session ID to use to store the data.\n     */\n    sessionId: string;\n    /**\n     * The Momento cache client.\n     */\n    client: ICacheClient;\n    /**\n     * The name of the cache to use to store the data.\n     */\n    cacheName: string;\n    /**\n     * The time to live for the cache items in seconds.\n     * If not specified, the cache client default is used.\n     */\n    sessionTtl?: number;\n    /**\n     * If true, ensure that the cache exists before returning.\n     * If false, the cache is not checked for existence.\n     * Defaults to true.\n     */\n    ensureCacheExists?: true;\n}\n/**\n * A class that stores chat message history using Momento Cache. It\n * interacts with a Momento cache client to perform operations like\n * fetching, adding, and deleting messages.\n * @example\n * ```typescript\n * const chatHistory = await MomentoChatMessageHistory.fromProps({\n *   client: new CacheClient({\n *     configuration: Configurations.Laptop.v1(),\n *     credentialProvider: CredentialProvider.fromEnvironmentVariable({\n *       environmentVariableName: \"MOMENTO_API_KEY\",\n *     }),\n *     defaultTtlSeconds: 60 * 60 * 24,\n *   }),\n *   cacheName: \"langchain\",\n *   sessionId: new Date().toISOString(),\n *   sessionTtl: 300,\n * });\n *\n * const messages = await chatHistory.getMessages();\n * console.log({ messages });\n * ```\n */\nexport declare class MomentoChatMessageHistory extends BaseListChatMessageHistory {\n    lc_namespace: string[];\n    private readonly sessionId;\n    private readonly client;\n    private readonly cacheName;\n    private readonly sessionTtl;\n    private constructor();\n    /**\n     * Create a new chat message history backed by Momento.\n     *\n     * @param {MomentoCacheProps} props The settings to instantiate the Momento chat message history.\n     * @param {string} props.sessionId The session ID to use to store the data.\n     * @param {ICacheClient} props.client The Momento cache client.\n     * @param {string} props.cacheName The name of the cache to use to store the data.\n     * @param {number} props.sessionTtl The time to live for the cache items in seconds.\n     * If not specified, the cache client default is used.\n     * @param {boolean} props.ensureCacheExists If true, ensure that the cache exists before returning.\n     * If false, the cache is not checked for existence.\n     * @throws {InvalidArgumentError} If {@link props.sessionTtl} is not strictly positive.\n     * @returns A new chat message history backed by Momento.\n     */\n    static fromProps(props: MomentoChatMessageHistoryProps): Promise<MomentoChatMessageHistory>;\n    /**\n     * Validate the user-specified TTL, if provided, is strictly positive.\n     * @param ttlSeconds The TTL to validate.\n     */\n    private validateTtlSeconds;\n    /**\n     * Fetches messages from the cache.\n     * @returns A Promise that resolves to an array of BaseMessage instances.\n     */\n    getMessages(): Promise<BaseMessage[]>;\n    /**\n     * Adds a message to the cache.\n     * @param message The BaseMessage instance to add to the cache.\n     * @returns A Promise that resolves when the message has been added.\n     */\n    addMessage(message: BaseMessage): Promise<void>;\n    /**\n     * Deletes all messages from the cache.\n     * @returns A Promise that resolves when all messages have been deleted.\n     */\n    clear(): Promise<void>;\n}\n//# sourceMappingURL=momento.d.ts.map"],"mappings":";;;;;;;;AAMA;AAgDqBI,UAhDJD,8BAAAA,CAgD6B;EAqBlBA;;;EAUDD,SAAAA,EAAAA,MAAAA;EAARG;;;EAWNA,MAAAA,EAlFDL,YAkFCK;EA1C0CJ;AAA0B;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;cAA5DG,yBAAAA,SAAkCH,0BAAAA;;;;;;;;;;;;;;;;;;;;;0BAqB3BE,iCAAiCE,QAAQD;;;;;;;;;;iBAUlDC,QAAQH;;;;;;sBAMHA,cAAcG;;;;;WAKzBA"}