feat(Qdrant Vector Store Node): Qdrant vector store support (#8080)

## Summary
This PR intends to add [Qdrant](https://qdrant.tech/) as a supported
vectorstore node to load and retrieve documents from in a workflow.


## Review / Merge checklist
- [x] PR title and summary are descriptive. 
- [x] Node/credentials documentation to be updated in
https://github.com/n8n-io/n8n-docs/pull/1796.

---------

Co-authored-by: oleg <me@olegivaniv.com>
Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/@n8n/nodes-langchain/credentials/QdrantApi.credentials.ts

@@ -0,0 +1,50 @@
+import type {
+	IAuthenticateGeneric,
+	ICredentialTestRequest,
+	ICredentialType,
+	INodeProperties,
+} from 'n8n-workflow';
+
+export class QdrantApi implements ICredentialType {
+	name = 'qdrantApi';
+
+	displayName = 'QdrantApi';
+
+	documentationUrl = 'https://docs.n8n.io/integrations/builtin/credentials/qdrant/';
+
+	properties: INodeProperties[] = [
+		{
+			displayName: 'API Key',
+			name: 'apiKey',
+			type: 'string',
+			typeOptions: { password: true },
+			required: true,
+			default: '',
+		},
+		{
+			displayName: 'Qdrant URL',
+			name: 'qdrantUrl',
+			type: 'string',
+			required: true,
+			default: '',
+		},
+	];
+
+	authenticate: IAuthenticateGeneric = {
+		type: 'generic',
+		properties: {
+			headers: {
+				'api-key': '={{$credentials.apiKey}}',
+			},
+		},
+	};
+
+	test: ICredentialTestRequest = {
+		request: {
+			baseURL: '={{$credentials.qdrantUrl}}',
+			headers: {
+				accept: 'application/json; charset=utf-8',
+			},
+		},
+	};
+}

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStoreQdrant/VectorStoreQdrant.node.ts

@@ -0,0 +1,85 @@
+import { type INodeProperties } from 'n8n-workflow';
+import type { QdrantLibArgs } from 'langchain/vectorstores/qdrant';
+import { QdrantVectorStore } from 'langchain/vectorstores/qdrant';
+import type { Schemas as QdrantSchemas } from '@qdrant/js-client-rest';
+import { createVectorStoreNode } from '../shared/createVectorStoreNode';
+import { qdrantCollectionRLC } from '../shared/descriptions';
+import { qdrantCollectionsSearch } from '../shared/methods/listSearch';
+
+const sharedFields: INodeProperties[] = [qdrantCollectionRLC];
+
+const insertFields: INodeProperties[] = [
+	{
+		displayName: 'Options',
+		name: 'options',
+		type: 'collection',
+		placeholder: 'Add Option',
+		default: {},
+		options: [
+			{
+				displayName: 'Collection Config',
+				name: 'collectionConfig',
+				type: 'json',
+				default: '',
+				description:
+					'JSON options for creating a collection. <a href="https://qdrant.tech/documentation/concepts/collections">Learn more</a>.',
+			},
+		],
+	},
+];
+
+export const VectorStoreQdrant = createVectorStoreNode({
+	meta: {
+		displayName: 'Qdrant Vector Store',
+		name: 'vectorStoreQdrant',
+		description: 'Work with your data in a Qdrant collection',
+		icon: 'file:qdrant.svg',
+		docsUrl:
+			'https://docs.n8n.io/integrations/builtin/cluster-nodes/root-nodes/n8n-nodes-langchain.vectorstoreqdrant/',
+		credentials: [
+			{
+				name: 'qdrantApi',
+				required: true,
+			},
+		],
+	},
+	methods: { listSearch: { qdrantCollectionsSearch } },
+	insertFields,
+	sharedFields,
+	async getVectorStoreClient(context, filter, embeddings, itemIndex) {
+		const collection = context.getNodeParameter('qdrantCollection', itemIndex, '', {
+			extractValue: true,
+		}) as string;
+
+		const credentials = await context.getCredentials('qdrantApi');
+
+		const config: QdrantLibArgs = {
+			url: credentials.qdrantUrl as string,
+			apiKey: credentials.apiKey as string,
+			collectionName: collection,
+		};
+
+		return QdrantVectorStore.fromExistingCollection(embeddings, config);
+	},
+	async populateVectorStore(context, embeddings, documents, itemIndex) {
+		const collectionName = context.getNodeParameter('qdrantCollection', itemIndex, '', {
+			extractValue: true,
+		}) as string;
+
+		// If collection config is not provided, the collection will be created with default settings
+		// i.e. with the size of the passed embeddings and "Cosine" distance metric
+		const { collectionConfig } = context.getNodeParameter('options', itemIndex, {}) as {
+			collectionConfig?: QdrantSchemas['CreateCollection'];
+		};
+		const credentials = await context.getCredentials('qdrantApi');
+
+		const config: QdrantLibArgs = {
+			url: credentials.qdrantUrl as string,
+			apiKey: credentials.apiKey as string,
+			collectionName,
+			collectionConfig,
+		};
+
+		await QdrantVectorStore.fromDocuments(documents, embeddings, config);
+	},
+});

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStoreQdrant/qdrant.svg

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="256px" height="296px" viewBox="0 0 256 296" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" preserveAspectRatio="xMidYMid">
+    <title>qdrant</title>
+    <defs>
+        <linearGradient x1="81.5619048%" y1="44.8421053%" x2="-18.0857143%" y2="44.8421053%" id="linearGradient-1">
+            <stop stop-color="#FF3364" offset="0%"></stop>
+            <stop stop-color="#C91540" stop-opacity="0" offset="100%"></stop>
+        </linearGradient>
+    </defs>
+    <g>
+        <polygon fill="#24386C" points="201.31705 271.722427 195.422715 109.21267 184.747781 66.3682368 256 73.9112545 256 270.492509 212.474757 295.612626"></polygon>
+        <polygon fill="#7589BE" points="255.995151 73.8998107 212.469908 99.037384 122.649634 79.3346471 17.5160008 122.140288 1.1370484e-14 73.8998107 63.9883137 36.9499053 127.996024 0 191.986277 36.9499053"></polygon>
+        <polyline fill="#B2BFE8" points="0.00310340412 73.8998107 43.5283462 99.037384 68.7590217 174.073816 153.949405 242.236209 128.001067 295.599243 63.9933568 258.647398 0.00310340412 221.697492 0.00310340412 73.897871"></polyline>
+        <polyline fill="#24386C" points="156.856906 202.807459 128.001067 245.347371 128.001067 295.603122 168.946605 271.978458 190.043934 240.475027"></polyline>
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+        <polyline fill="#B2BFE8" points="87.0555287 124.178837 128.001067 147.803501 128.001067 195.091621 90.131778 196.720927 67.2247763 167.471344 87.0555287 124.178856"></polyline>
+        <polygon fill="#24386C" points="128.001067 147.799621 168.946605 124.176897 196.813234 170.576668 163.090869 198.439418 128.001067 195.089293"></polygon>
+        <path d="M168.946605,271.974579 L212.471848,295.601182 L212.471848,99.0393237 L170.226759,74.658205 L128.001067,50.2770864 L85.7559782,74.658205 L43.5302858,99.0393237 L43.5302858,196.581255 L85.7559782,220.962373 L128.001067,245.345432 L168.946605,221.699432 L168.946605,271.974579 Z M168.946605,171.443681 L128.001067,195.087742 L87.0555287,171.443681 L87.0555287,124.174957 L128.001067,100.530897 L168.946605,124.174957 L168.946605,171.443681" fill="#DC244C"></path>
+        <polygon fill="url(#linearGradient-1)" points="128.018523 245.362888 128.018523 195.099379 87.2863443 171.657041 87.2863443 221.837146"></polygon>
+    </g>
+</svg>

packages/@n8n/nodes-langchain/nodes/vector_store/shared/descriptions.ts

@@ -45,3 +45,26 @@ export const supabaseTableNameRLC: INodeProperties = {
 		},
 	],
 };
+
+export const qdrantCollectionRLC: INodeProperties = {
+	displayName: 'Qdrant Collection',
+	name: 'qdrantCollection',
+	type: 'resourceLocator',
+	default: { mode: 'list', value: '' },
+	required: true,
+	modes: [
+		{
+			displayName: 'From List',
+			name: 'list',
+			type: 'list',
+			typeOptions: {
+				searchListMethod: 'qdrantCollectionsSearch',
+			},
+		},
+		{
+			displayName: 'ID',
+			name: 'id',
+			type: 'string',
+		},
+	],
+};

packages/@n8n/nodes-langchain/nodes/vector_store/shared/methods/listSearch.ts

@@ -1,5 +1,6 @@
 import { ApplicationError, type IDataObject, type ILoadOptionsFunctions } from 'n8n-workflow';
 import { Pinecone } from '@pinecone-database/pinecone';
+import { QdrantClient } from '@qdrant/js-client-rest';
 
 export async function pineconeIndexSearch(this: ILoadOptionsFunctions) {
 	const credentials = await this.getCredentials('pineconeApi');
@@ -49,3 +50,21 @@ export async function supabaseTableNameSearch(this: ILoadOptionsFunctions) {
 
 	return { results };
 }
+
+export async function qdrantCollectionsSearch(this: ILoadOptionsFunctions) {
+	const credentials = await this.getCredentials('qdrantApi');
+
+	const client = new QdrantClient({
+		url: credentials.qdrantUrl as string,
+		apiKey: credentials.apiKey as string,
+	});
+
+	const response = await client.getCollections();
+
+	const results = response.collections.map((collection) => ({
+		name: collection.name,
+		value: collection.name,
+	}));
+
+	return { results };
+}

packages/@n8n/nodes-langchain/package.json

@@ -33,6 +33,7 @@
       "dist/credentials/MotorheadApi.credentials.js",
       "dist/credentials/OllamaApi.credentials.js",
       "dist/credentials/PineconeApi.credentials.js",
+      "dist/credentials/QdrantApi.credentials.js",
       "dist/credentials/SerpApi.credentials.js",
       "dist/credentials/WolframAlphaApi.credentials.js",
       "dist/credentials/XataApi.credentials.js",
@@ -93,6 +94,7 @@
       "dist/nodes/vector_store/VectorStorePinecone/VectorStorePinecone.node.js",
       "dist/nodes/vector_store/VectorStorePineconeInsert/VectorStorePineconeInsert.node.js",
       "dist/nodes/vector_store/VectorStorePineconeLoad/VectorStorePineconeLoad.node.js",
+      "dist/nodes/vector_store/VectorStoreQdrant/VectorStoreQdrant.node.js",
       "dist/nodes/vector_store/VectorStoreSupabase/VectorStoreSupabase.node.js",
       "dist/nodes/vector_store/VectorStoreSupabaseInsert/VectorStoreSupabaseInsert.node.js",
       "dist/nodes/vector_store/VectorStoreSupabaseLoad/VectorStoreSupabaseLoad.node.js",
@@ -118,6 +120,7 @@
     "@huggingface/inference": "2.6.4",
     "@n8n/vm2": "3.9.20",
     "@pinecone-database/pinecone": "1.1.2",
+    "@qdrant/js-client-rest": "1.7.0",
     "@supabase/supabase-js": "2.38.5",
     "@xata.io/client": "0.25.3",
     "cohere-ai": "6.2.2",

pnpm-lock.yaml

@@ -192,6 +192,9 @@ importers:
       '@pinecone-database/pinecone':
         specifier: 1.1.2
         version: 1.1.2
+      '@qdrant/js-client-rest':
+        specifier: 1.7.0
+        version: 1.7.0(typescript@5.3.2)
       '@supabase/supabase-js':
         specifier: 2.38.5
         version: 2.38.5
@@ -215,7 +218,7 @@ importers:
         version: 1.2.0
       langchain:
         specifier: 0.0.198
-        version: 0.0.198(@aws-sdk/client-bedrock-runtime@3.454.0)(@getzep/zep-js@0.9.0)(@google-ai/generativelanguage@0.2.1)(@huggingface/inference@2.6.4)(@pinecone-database/pinecone@1.1.2)(@supabase/supabase-js@2.38.5)(@xata.io/client@0.25.3)(cohere-ai@6.2.2)(d3-dsv@2.0.0)(epub2@3.0.1)(html-to-text@9.0.5)(lodash@4.17.21)(mammoth@1.6.0)(pdf-parse@1.1.1)(pg@8.11.3)(redis@4.6.11)(typeorm@0.3.17)
+        version: 0.0.198(@aws-sdk/client-bedrock-runtime@3.454.0)(@getzep/zep-js@0.9.0)(@google-ai/generativelanguage@0.2.1)(@huggingface/inference@2.6.4)(@pinecone-database/pinecone@1.1.2)(@qdrant/js-client-rest@1.7.0)(@supabase/supabase-js@2.38.5)(@xata.io/client@0.25.3)(cohere-ai@6.2.2)(d3-dsv@2.0.0)(epub2@3.0.1)(html-to-text@9.0.5)(lodash@4.17.21)(mammoth@1.6.0)(pdf-parse@1.1.1)(pg@8.11.3)(redis@4.6.11)(typeorm@0.3.17)
       lodash:
         specifier: 4.17.21
         version: 4.17.21
@@ -6544,6 +6547,23 @@ packages:
     resolution: {integrity: sha512-Vvn3zZrhQZkkBE8LSuW3em98c0FwgO4nxzv6OdSxPKJIEKY2bGbHn+mhGIPerzI4twdxaP8/0+06HBpwf345Lw==}
     dev: false
 
+  /@qdrant/js-client-rest@1.7.0(typescript@5.3.2):
+    resolution: {integrity: sha512-16O0EQfrrybcPVipodxykr6dMUlBzKW7a63cSDUFVgc5a1AWESwERykwjuvW5KqvKdkPcxZ2NssrvgUO1W3MgA==}
+    engines: {node: '>=18.0.0', pnpm: '>=8'}
+    peerDependencies:
+      typescript: ^5.3.0
+    dependencies:
+      '@qdrant/openapi-typescript-fetch': 1.2.1
+      '@sevinf/maybe': 0.5.0
+      typescript: 5.3.2
+      undici: 5.26.4
+    dev: false
+
+  /@qdrant/openapi-typescript-fetch@1.2.1:
+    resolution: {integrity: sha512-oiBJRN1ME7orFZocgE25jrM3knIF/OKJfMsZPBbtMMKfgNVYfps0MokGvSJkBmecj6bf8QoLXWIGlIoaTM4Zmw==}
+    engines: {node: '>=12.0.0', pnpm: '>=8'}
+    dev: false
+
   /@radix-ui/number@1.0.1:
     resolution: {integrity: sha512-T5gIdVO2mmPW3NNhjNgEP3cqMXjXL9UbO0BzWcXfvdBs+BohbQxvd/K5hSVKmn9/lbTdsQVKbUcP5WLCwvUbBg==}
     dependencies:
@@ -7391,6 +7411,10 @@ packages:
       - supports-color
     dev: true
 
+  /@sevinf/maybe@0.5.0:
+    resolution: {integrity: sha512-ARhyoYDnY1LES3vYI0fiG6e9esWfTNcXcO6+MPJJXcnyMV3bim4lnFt45VXouV7y82F4x3YH8nOQ6VztuvUiWg==}
+    dev: false
+
   /@sideway/address@4.1.4:
     resolution: {integrity: sha512-7vwq+rOHVWjyXxVlR76Agnvhy8I9rpzjosTESvmhNeXOXdZZB15Fl+TI9x1SiHZH5Jv2wTGduSxFDIaq0m3DUw==}
     dependencies:
@@ -18585,7 +18609,7 @@ packages:
     resolution: {integrity: sha512-Xq9nH7KlWZmXAtodXDDRE7vs6DU1gTU8zYDHDiWLSip45Egwq3plLHzPn27NgvzL2r1LMPC1vdqh98sQxtqj4A==}
     dev: false
 
-  /langchain@0.0.198(@aws-sdk/client-bedrock-runtime@3.454.0)(@getzep/zep-js@0.9.0)(@google-ai/generativelanguage@0.2.1)(@huggingface/inference@2.6.4)(@pinecone-database/pinecone@1.1.2)(@supabase/supabase-js@2.38.5)(@xata.io/client@0.25.3)(cohere-ai@6.2.2)(d3-dsv@2.0.0)(epub2@3.0.1)(html-to-text@9.0.5)(lodash@4.17.21)(mammoth@1.6.0)(pdf-parse@1.1.1)(pg@8.11.3)(redis@4.6.11)(typeorm@0.3.17):
+  /langchain@0.0.198(@aws-sdk/client-bedrock-runtime@3.454.0)(@getzep/zep-js@0.9.0)(@google-ai/generativelanguage@0.2.1)(@huggingface/inference@2.6.4)(@pinecone-database/pinecone@1.1.2)(@qdrant/js-client-rest@1.7.0)(@supabase/supabase-js@2.38.5)(@xata.io/client@0.25.3)(cohere-ai@6.2.2)(d3-dsv@2.0.0)(epub2@3.0.1)(html-to-text@9.0.5)(lodash@4.17.21)(mammoth@1.6.0)(pdf-parse@1.1.1)(pg@8.11.3)(redis@4.6.11)(typeorm@0.3.17):
     resolution: {integrity: sha512-YC0O1g8r61InCWyF5NmiQjdghdq6LKcgMrDZtqLbgDxAe4RoSldonm+5oNXS3yjCISG0j3s5Cty+yB7klqvUpg==}
     engines: {node: '>=18'}
     peerDependencies:
@@ -18898,6 +18922,7 @@ packages:
       '@huggingface/inference': 2.6.4
       '@langchain/core': 0.0.2
       '@pinecone-database/pinecone': 1.1.2
+      '@qdrant/js-client-rest': 1.7.0(typescript@5.3.2)
       '@supabase/supabase-js': 2.38.5
       '@xata.io/client': 0.25.3(typescript@5.3.2)
       binary-extensions: 2.2.0