feat: Azure Open AI chat model & embeddings (#8522)

Signed-off-by: Oleg Ivaniv <me@olegivaniv.com>

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsAzureOpenAi/EmbeddingsAzureOpenAi.node.ts

@@ -0,0 +1,126 @@
+/* eslint-disable n8n-nodes-base/node-dirname-against-convention */
+import {
+	NodeConnectionType,
+	type IExecuteFunctions,
+	type INodeType,
+	type INodeTypeDescription,
+	type SupplyData,
+} from 'n8n-workflow';
+
+import { OpenAIEmbeddings } from 'langchain/embeddings/openai';
+import { logWrapper } from '../../../utils/logWrapper';
+import { getConnectionHintNoticeField } from '../../../utils/sharedFields';
+
+export class EmbeddingsAzureOpenAi implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'Embeddings Azure OpenAI',
+		name: 'embeddingsAzureOpenAi',
+		icon: 'file:azure.svg',
+		credentials: [
+			{
+				name: 'azureOpenAiApi',
+				required: true,
+			},
+		],
+		group: ['transform'],
+		version: 1,
+		description: 'Use Embeddings Azure OpenAI',
+		defaults: {
+			name: 'Embeddings Azure OpenAI',
+		},
+
+		codex: {
+			categories: ['AI'],
+			subcategories: {
+				AI: ['Embeddings'],
+			},
+			resources: {
+				primaryDocumentation: [
+					{
+						url: 'https://docs.n8n.io/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.embeddingsazureopenai/',
+					},
+				],
+			},
+		},
+		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
+		inputs: [],
+		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
+		outputs: [NodeConnectionType.AiEmbedding],
+		outputNames: ['Embeddings'],
+		properties: [
+			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			{
+				displayName: 'Model (Deployment) Name',
+				name: 'model',
+				type: 'string',
+				description: 'The name of the model(deployment) to use',
+				default: '',
+			},
+			{
+				displayName: 'Options',
+				name: 'options',
+				placeholder: 'Add Option',
+				description: 'Additional options to add',
+				type: 'collection',
+				default: {},
+				options: [
+					{
+						displayName: 'Batch Size',
+						name: 'batchSize',
+						default: 512,
+						typeOptions: { maxValue: 2048 },
+						description: 'Maximum number of documents to send in each request',
+						type: 'number',
+					},
+					{
+						displayName: 'Strip New Lines',
+						name: 'stripNewLines',
+						default: true,
+						description: 'Whether to strip new lines from the input text',
+						type: 'boolean',
+					},
+					{
+						displayName: 'Timeout',
+						name: 'timeout',
+						default: -1,
+						description:
+							'Maximum amount of time a request is allowed to take in seconds. Set to -1 for no timeout.',
+						type: 'number',
+					},
+				],
+			},
+		],
+	};
+
+	async supplyData(this: IExecuteFunctions, itemIndex: number): Promise<SupplyData> {
+		this.logger.verbose('Supply data for embeddings');
+		const credentials = (await this.getCredentials('azureOpenAiApi')) as {
+			apiKey: string;
+			resourceName: string;
+			apiVersion: string;
+		};
+		const modelName = this.getNodeParameter('model', itemIndex) as string;
+
+		const options = this.getNodeParameter('options', itemIndex, {}) as {
+			batchSize?: number;
+			stripNewLines?: boolean;
+			timeout?: number;
+		};
+
+		if (options.timeout === -1) {
+			options.timeout = undefined;
+		}
+
+		const embeddings = new OpenAIEmbeddings({
+			azureOpenAIApiDeploymentName: modelName,
+			azureOpenAIApiInstanceName: credentials.resourceName,
+			azureOpenAIApiKey: credentials.apiKey,
+			azureOpenAIApiVersion: credentials.apiVersion,
+			...options,
+		});
+
+		return {
+			response: logWrapper(embeddings, this),
+		};
+	}
+}

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsAzureOpenAi/azure.svg

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