Deleting Embedded Documents from VectorStore

[sallahbaksh]

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Example Code

import { MemoryVectorStore } from "langchain/vectorstores/memory";

export class VectorStore {
  private vectorStore: MemoryVectorStore;

  public async deleteVectors(): Promise<void> {
    this.vectorStore.delete;
  }

Description

How can I delete all embedded documents from MemoryVectorStore? When I try to use the delete(_params?: Record<string, any>) method, I get a Not Implemented error. Is there another way to delete all of the embedded documents?

System Info

Node version: 22.12.0
Platform: Windows

[dosubot[bot]]

The delete method in the MemoryVectorStore class is currently not implemented, which is why you're encountering the "Not Implemented" error when trying to use it ^[1].

To delete all embedded documents from the MemoryVectorStore, you can manually clear the memoryVectors array. Here's how you can modify your deleteVectors method to achieve this:

import { MemoryVectorStore } from "langchain/vectorstores/memory";

export class VectorStore {
  private vectorStore: MemoryVectorStore;

  public async deleteVectors(): Promise<void> {
    this.vectorStore.memoryVectors = [];
  }
}

This approach directly clears the array that stores the embedded documents, effectively removing all of them.

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