Added Elasticsearch Vector Store

src/backend/langflow/config.yaml

@@ -274,6 +274,8 @@ vectorstores:
     documentation: "https://python.langchain.com/docs/modules/data_connection/vectorstores/integrations/faiss"
   Pinecone:
     documentation: "https://python.langchain.com/docs/modules/data_connection/vectorstores/integrations/pinecone"
+  ElasticsearchStore:
+    documentation: "https://python.langchain.com/docs/modules/data_connection/vectorstores/integrations/elasticsearch"
   SupabaseVectorStore:
     documentation: "https://python.langchain.com/docs/modules/data_connection/vectorstores/integrations/supabase"
   MongoDBAtlasVectorSearch:

src/backend/langflow/interface/initialize/vector_store.py

@@ -1,6 +1,7 @@
 from typing import Any, Callable, Dict, Type
 from langchain.vectorstores import (
     Pinecone,
+    ElasticsearchStore,
     Qdrant,
     Chroma,
     FAISS,
@@ -226,11 +227,34 @@ def initialize_qdrant(class_object: Type[Qdrant], params: dict):
     return class_object.from_documents(**params)
 
 
+def initialize_elasticsearch(class_object: Type[ElasticsearchStore], params: dict):
+    """Initialize elastic and return the class object"""
+    if "index_name" not in params:
+        raise ValueError("Elasticsearch Index must be provided in the params")
+    if "es_url" not in params:
+        raise ValueError("Elasticsearch URL must be provided in the params")
+    if not docs_in_params(params):
+        existing_index_params = {
+            "embedding": params.pop("embedding"),
+        }
+        if "index_name" in params:
+            existing_index_params["index_name"] = params.pop("index_name")
+        if "es_url" in params:
+            existing_index_params["es_url"] = params.pop("es_url")
+
+        return class_object.from_existing_index(**existing_index_params)
+    # If there are docs in the params, create a new index
+    if "texts" in params:
+        params["documents"] = params.pop("texts")
+    return class_object.from_documents(**params)
+
+
 vecstore_initializer: Dict[str, Callable[[Type[Any], dict], Any]] = {
     "Pinecone": initialize_pinecone,
     "Chroma": initialize_chroma,
     "Qdrant": initialize_qdrant,
     "Weaviate": initialize_weaviate,
+    "ElasticsearchStore": initialize_elasticsearch,
     "FAISS": initialize_faiss,
     "SupabaseVectorStore": initialize_supabase,
     "MongoDBAtlasVectorSearch": initialize_mongodb,

src/backend/langflow/template/frontend_node/vectorstores.py

@@ -11,6 +11,7 @@ BASIC_FIELDS = [
     "persist_directory",
     "persist",
     "weaviate_url",
+    "es_url",
     "index_name",
     "namespace",
     "folder_path",
@@ -170,6 +171,33 @@ class VectorStoreFrontendNode(FrontendNode):
                 value="",
             )
             extra_fields.extend((extra_field, extra_field2))
+
+        elif self.template.type_name == "ElasticsearchStore":
+            # add elastic and elastic credentials
+            extra_field = TemplateField(
+                name="es_url",
+                field_type="str",
+                required=True,
+                placeholder="http://localhost:9200",
+                show=True,
+                advanced=False,
+                multiline=False,
+                value="http://localhost:9200",
+                display_name="Elasticsearch URL",
+            )
+            extra_field2 = TemplateField(
+                name="index_name",
+                field_type="str",
+                required=True,
+                placeholder="test-index",
+                show=True,
+                advanced=False,
+                multiline=False,
+                value="test-index",
+                display_name="Index Name",
+            )
+            extra_fields.extend((extra_field, extra_field2))
+
         elif self.template.type_name == "FAISS":
             extra_field = TemplateField(
                 name="folder_path",

src/frontend/src/icons/ElasticsearchStore/ElasticsearchLogo.jsx

@@ -0,0 +1,19 @@
+const SvgElasticsearchLogo = (props) => (
+  <svg
+    xmlns="http://www.w3.org/2000/svg"
+    width="24"
+    height="24"
+    fill="none"
+    stroke="currentColor"
+    strokeLinecap="round"
+    strokeLinejoin="round"
+    strokeWidth="2"
+    className="icon icon-tabler icon-tabler-brand-elastic"
+    viewBox="0 0 24 24"
+  >
+    <path stroke="none" d="M0 0h24v24H0z"></path>
+    <path d="M14 2a5 5 0 015 5c0 .712-.232 1.387-.5 2 1.894.042 3.5 1.595 3.5 3.5 0 1.869-1.656 3.4-3.5 3.5.333.625.5 1.125.5 1.5a2.5 2.5 0 01-2.5 2.5c-.787 0-1.542-.432-2-1-.786 1.73-2.476 3-4.5 3a5 5 0 01-4.583-7 3.5 3.5 0 01-.11-6.992h.195a2.5 2.5 0 012-4c.787 0 1.542.432 2 1 .786-1.73 2.476-3 4.5-3zM8.5 9l-3-1"></path>
+    <path d="M9.5 5l-1 4 1 2 5 2 4-4M18.499 16l-3-.5-1-2.5M14.5 19l1-3.5M5.417 15L9.5 11"></path>
+  </svg>
+);
+export default SvgElasticsearchLogo;

src/frontend/src/icons/ElasticsearchStore/ElasticsearchLogo.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-brand-elastic" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
+  <path stroke="none" d="M0 0h24v24H0z" fill="none" />
+  <path d="M14 2a5 5 0 0 1 5 5c0 .712 -.232 1.387 -.5 2c1.894 .042 3.5 1.595 3.5 3.5c0 1.869 -1.656 3.4 -3.5 3.5c.333 .625 .5 1.125 .5 1.5a2.5 2.5 0 0 1 -2.5 2.5c-.787 0 -1.542 -.432 -2 -1c-.786 1.73 -2.476 3 -4.5 3a5 5 0 0 1 -4.583 -7a3.5 3.5 0 0 1 -.11 -6.992l.195 0a2.5 2.5 0 0 1 2 -4c.787 0 1.542 .432 2 1c.786 -1.73 2.476 -3 4.5 -3z" />
+  <path d="M8.5 9l-3 -1" />
+  <path d="M9.5 5l-1 4l1 2l5 2l4 -4" />
+  <path d="M18.499 16l-3 -.5l-1 -2.5" />
+  <path d="M14.5 19l1 -3.5" />
+  <path d="M5.417 15l4.083 -4" />
+</svg>

src/frontend/src/icons/ElasticsearchStore/index.tsx

@@ -0,0 +1,9 @@
+import React, { forwardRef } from "react";
+import SvgElasticsearchLogo from "./ElasticsearchLogo";
+
+export const ElasticsearchIcon = forwardRef<
+  SVGSVGElement,
+  React.PropsWithChildren<{}>
+>((props, ref) => {
+  return <SvgElasticsearchLogo ref={ref} {...props} />;
+});

src/frontend/src/utils/styleUtils.ts

@@ -111,6 +111,7 @@ import { AnthropicIcon } from "../icons/Anthropic";
 import { BingIcon } from "../icons/Bing";
 import { ChromaIcon } from "../icons/ChromaIcon";
 import { CohereIcon } from "../icons/Cohere";
+import { ElasticsearchIcon } from "../icons/ElasticsearchStore";
 import { EvernoteIcon } from "../icons/Evernote";
 import { FBIcon } from "../icons/FacebookMessenger";
 import { GitBookIcon } from "../icons/GitBook";
@@ -256,6 +257,7 @@ export const nodeIconsLucide: iconsType = {
   OpenAIEmbeddings: OpenAiIcon,
   Pinecone: PineconeIcon,
   Qdrant: QDrantIcon,
+  ElasticsearchStore: ElasticsearchIcon,
   Weaviate: WeaviateIcon,
   Searx: SearxIcon,
   SlackDirectoryLoader: SvgSlackIcon,