add supabase load existing index

packages/components/nodes/vectorstores/Supabase_Existing/Supabase_Exisiting.ts

@@ -0,0 +1,93 @@
+import { INode, INodeData, INodeOutputsValue, INodeParams } from '../../../src/Interface'
+import { Embeddings } from 'langchain/embeddings/base'
+import { getBaseClasses } from '../../../src/utils'
+import { SupabaseVectorStore } from 'langchain/vectorstores/supabase'
+import { createClient } from '@supabase/supabase-js'
+
+class Supabase_Existing_VectorStores implements INode {
+    label: string
+    name: string
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    inputs: INodeParams[]
+    outputs: INodeOutputsValue[]
+
+    constructor() {
+        this.label = 'Supabase Load Existing Index'
+        this.name = 'supabaseExistingIndex'
+        this.type = 'Supabase'
+        this.icon = 'supabase.svg'
+        this.category = 'Vector Stores'
+        this.description = 'Load existing index from Supabase (i.e: Document has been upserted)'
+        this.baseClasses = [this.type, 'VectorStoreRetriever', 'BaseRetriever']
+        this.inputs = [
+            {
+                label: 'Embeddings',
+                name: 'embeddings',
+                type: 'Embeddings'
+            },
+            {
+                label: 'Supabase API Key',
+                name: 'supabaseApiKey',
+                type: 'password'
+            },
+            {
+                label: 'Supabase Project URL',
+                name: 'supabaseProjUrl',
+                type: 'string'
+            },
+            {
+                label: 'Table Name',
+                name: 'tableName',
+                type: 'string'
+            },
+            {
+                label: 'Query Name',
+                name: 'queryName',
+                type: 'string'
+            }
+        ]
+        this.outputs = [
+            {
+                label: 'Supabase Retriever',
+                name: 'retriever',
+                baseClasses: this.baseClasses
+            },
+            {
+                label: 'Supabase Vector Store',
+                name: 'vectorStore',
+                baseClasses: [this.type, ...getBaseClasses(SupabaseVectorStore)]
+            }
+        ]
+    }
+
+    async init(nodeData: INodeData): Promise<any> {
+        const supabaseApiKey = nodeData.inputs?.supabaseApiKey as string
+        const supabaseProjUrl = nodeData.inputs?.supabaseProjUrl as string
+        const tableName = nodeData.inputs?.tableName as string
+        const queryName = nodeData.inputs?.queryName as string
+        const embeddings = nodeData.inputs?.embeddings as Embeddings
+        const output = nodeData.outputs?.output as string
+
+        const client = createClient(supabaseProjUrl, supabaseApiKey)
+
+        const vectorStore = await SupabaseVectorStore.fromExistingIndex(embeddings, {
+            client,
+            tableName: tableName,
+            queryName: queryName
+        })
+
+        if (output === 'retriever') {
+            const retriever = vectorStore.asRetriever()
+            return retriever
+        } else if (output === 'vectorStore') {
+            return vectorStore
+        }
+        return vectorStore
+    }
+}
+
+module.exports = { nodeClass: Supabase_Existing_VectorStores }

packages/components/nodes/vectorstores/Supabase_Existing/supabase.svg

@@ -0,0 +1,15 @@
+<svg width="109" height="113" viewBox="0 0 109 113" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M63.7076 110.284C60.8481 113.885 55.0502 111.912 54.9813 107.314L53.9738 40.0625L99.1935 40.0625C107.384 40.0625 111.952 49.5226 106.859 55.9372L63.7076 110.284Z" fill="url(#paint0_linear)"/>
+<path d="M63.7076 110.284C60.8481 113.885 55.0502 111.912 54.9813 107.314L53.9738 40.0625L99.1935 40.0625C107.384 40.0625 111.952 49.5226 106.859 55.9372L63.7076 110.284Z" fill="url(#paint1_linear)" fill-opacity="0.2"/>
+<path d="M45.317 2.07103C48.1765 -1.53037 53.9745 0.442937 54.0434 5.041L54.4849 72.2922H9.83113C1.64038 72.2922 -2.92775 62.8321 2.1655 56.4175L45.317 2.07103Z" fill="#3ECF8E"/>
+<defs>
+<linearGradient id="paint0_linear" x1="53.9738" y1="54.9738" x2="94.1635" y2="71.8293" gradientUnits="userSpaceOnUse">
+<stop stop-color="#249361"/>
+<stop offset="1" stop-color="#3ECF8E"/>
+</linearGradient>
+<linearGradient id="paint1_linear" x1="36.1558" y1="30.5779" x2="54.4844" y2="65.0804" gradientUnits="userSpaceOnUse">
+<stop/>
+<stop offset="1" stop-opacity="0"/>
+</linearGradient>
+</defs>
+</svg>

packages/components/nodes/vectorstores/Supabase_Upsert/Supabase_Upsert.ts

@@ -19,7 +19,7 @@ class SupabaseUpsert_VectorStores implements INode {
     constructor() {
         this.label = 'Supabase Upsert Document'
         this.name = 'supabaseUpsert'
-        this.type = 'supabase'
+        this.type = 'Supabase'
         this.icon = 'supabase.svg'
         this.category = 'Vector Stores'
         this.description = 'Upsert documents to Supabase'