Add OpenAIEmbeddingCustom

This feature allow to select a customised modelName or the default one.

packages/components/nodes/embeddings/OpenAIEmbeddingCustom/OpenAIEmbeddingCustom.ts

@@ -0,0 +1,94 @@
+import { ICommonObject, INode, INodeData, INodeParams } from '../../../src/Interface'
+import { getBaseClasses, getCredentialData, getCredentialParam } from '../../../src/utils'
+import { OpenAIEmbeddings, OpenAIEmbeddingsParams } from 'langchain/embeddings/openai'
+
+class OpenAIEmbeddingCustom_Embeddings implements INode {
+    label: string
+    name: string
+    version: number
+    type: string
+    icon: string
+    category: string
+    description: string
+    baseClasses: string[]
+    credential: INodeParams
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'OpenAI Embeddings Custom'
+        this.name = 'openAIEmbeddingsCustom'
+        this.version = 1.0
+        this.type = 'OpenAIEmbeddingsCustom'
+        this.icon = 'openai.png'
+        this.category = 'Embeddings'
+        this.description = 'OpenAI API to generate embeddings for a given text'
+        this.baseClasses = [this.type, ...getBaseClasses(OpenAIEmbeddings)]
+        this.credential = {
+            label: 'Connect Credential',
+            name: 'credential',
+            type: 'credential',
+            credentialNames: ['openAIApi']
+        }
+        this.inputs = [
+            {
+                label: 'Strip New Lines',
+                name: 'stripNewLines',
+                type: 'boolean',
+                optional: true,
+                additionalParams: true
+            },
+            {
+                label: 'Batch Size',
+                name: 'batchSize',
+                type: 'number',
+                optional: true,
+                additionalParams: true
+            },
+            {
+                label: 'Timeout',
+                name: 'timeout',
+                type: 'number',
+                optional: true,
+                additionalParams: true
+            },
+            {
+                label: 'BasePath',
+                name: 'basepath',
+                type: 'string',
+                optional: true,
+                additionalParams: true
+            },
+            {
+                label: 'Model Name',
+                name: 'modelName',
+                type: 'string',
+                optional: true
+            }
+        ]
+    }
+
+    async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
+        const stripNewLines = nodeData.inputs?.stripNewLines as boolean
+        const batchSize = nodeData.inputs?.batchSize as string
+        const timeout = nodeData.inputs?.timeout as string
+        const basePath = nodeData.inputs?.basepath as string
+        const modelName = nodeData.inputs?.modelName as string
+
+        const credentialData = await getCredentialData(nodeData.credential ?? '', options)
+        const openAIApiKey = getCredentialParam('openAIApiKey', credentialData, nodeData)
+
+        const obj: Partial<OpenAIEmbeddingsParams> & { openAIApiKey?: string } = {
+            openAIApiKey
+        }
+
+        if (stripNewLines) obj.stripNewLines = stripNewLines
+        if (batchSize) obj.batchSize = parseInt(batchSize, 10)
+        if (timeout) obj.timeout = parseInt(timeout, 10)
+        if (modelName) obj.modelName = modelName
+
+        const model = new OpenAIEmbeddings(obj, { basePath })
+        return model
+    }
+}
+
+module.exports = { nodeClass: OpenAIEmbeddingCustom_Embeddings }