add vector upsert ability

packages/components/nodes/vectorstores/InMemory/InMemoryVectorStore.ts

@@ -1,9 +1,9 @@
-import { INode, INodeData, INodeOutputsValue, INodeParams } from '../../../src/Interface'
+import { flatten } from 'lodash'
 import { MemoryVectorStore } from 'langchain/vectorstores/memory'
 import { Embeddings } from 'langchain/embeddings/base'
 import { Document } from 'langchain/document'
+import { INode, INodeData, INodeOutputsValue, INodeParams } from '../../../src/Interface'
 import { getBaseClasses } from '../../../src/utils'
-import { flatten } from 'lodash'
 
 class InMemoryVectorStore_VectorStores implements INode {
     label: string
@@ -61,6 +61,28 @@ class InMemoryVectorStore_VectorStores implements INode {
         ]
     }
 
+    //@ts-ignore
+    vectorStoreMethods = {
+        async upsert(nodeData: INodeData): Promise<void> {
+            const docs = nodeData.inputs?.document as Document[]
+            const embeddings = nodeData.inputs?.embeddings as Embeddings
+
+            const flattenDocs = docs && docs.length ? flatten(docs) : []
+            const finalDocs = []
+            for (let i = 0; i < flattenDocs.length; i += 1) {
+                if (flattenDocs[i] && flattenDocs[i].pageContent) {
+                    finalDocs.push(new Document(flattenDocs[i]))
+                }
+            }
+
+            try {
+                await MemoryVectorStore.fromDocuments(finalDocs, embeddings)
+            } catch (e) {
+                throw new Error(e)
+            }
+        }
+    }
+
     async init(nodeData: INodeData): Promise<any> {
         const docs = nodeData.inputs?.document as Document[]
         const embeddings = nodeData.inputs?.embeddings as Embeddings