first commit

packages/nodes-base/nodes/Google/Translate/GoogleTranslate.node.ts

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+import type {
+	IDataObject,
+	IExecuteFunctions,
+	ILoadOptionsFunctions,
+	INodeExecutionData,
+	INodePropertyOptions,
+	INodeType,
+	INodeTypeDescription,
+} from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
+
+import { googleApiRequest } from './GenericFunctions';
+
+export interface IGoogleAuthCredentials {
+	email: string;
+	privateKey: string;
+}
+
+export class GoogleTranslate implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'Google Translate',
+		name: 'googleTranslate',
+		// eslint-disable-next-line n8n-nodes-base/node-class-description-icon-not-svg
+		icon: 'file:googletranslate.png',
+		group: ['input', 'output'],
+		version: [1, 2],
+		description: 'Translate data using Google Translate',
+		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
+		schemaPath: 'Google/Translate',
+		defaults: {
+			name: 'Google Translate',
+		},
+		usableAsTool: true,
+		inputs: [NodeConnectionTypes.Main],
+		outputs: [NodeConnectionTypes.Main],
+		credentials: [
+			{
+				name: 'googleApi',
+				required: true,
+				displayOptions: {
+					show: {
+						authentication: ['serviceAccount'],
+					},
+				},
+			},
+			{
+				name: 'googleTranslateOAuth2Api',
+				required: true,
+				displayOptions: {
+					show: {
+						authentication: ['oAuth2'],
+					},
+				},
+			},
+		],
+		properties: [
+			{
+				displayName: 'Authentication',
+				name: 'authentication',
+				type: 'options',
+				options: [
+					{
+						name: 'Service Account',
+						value: 'serviceAccount',
+					},
+					{
+						name: 'OAuth2',
+						value: 'oAuth2',
+					},
+				],
+				default: 'serviceAccount',
+				displayOptions: {
+					show: {
+						'@version': [1],
+					},
+				},
+			},
+			{
+				displayName: 'Authentication',
+				name: 'authentication',
+				type: 'options',
+				options: [
+					{
+						// eslint-disable-next-line n8n-nodes-base/node-param-display-name-miscased
+						name: 'OAuth2 (recommended)',
+						value: 'oAuth2',
+					},
+					{
+						name: 'Service Account',
+						value: 'serviceAccount',
+					},
+				],
+				default: 'oAuth2',
+				displayOptions: {
+					show: {
+						'@version': [2],
+					},
+				},
+			},
+			{
+				displayName: 'Resource',
+				name: 'resource',
+				type: 'options',
+				noDataExpression: true,
+				options: [
+					{
+						name: 'Language',
+						value: 'language',
+					},
+				],
+				default: 'language',
+			},
+			{
+				displayName: 'Operation',
+				name: 'operation',
+				type: 'options',
+				noDataExpression: true,
+				displayOptions: {
+					show: {
+						resource: ['language'],
+					},
+				},
+				options: [
+					{
+						name: 'Translate',
+						value: 'translate',
+						description: 'Translate data',
+						action: 'Translate a language',
+					},
+				],
+				default: 'translate',
+			},
+			// ----------------------------------
+			//         All
+			// ----------------------------------
+			{
+				displayName: 'Text',
+				name: 'text',
+				type: 'string',
+				default: '',
+				description: 'The input text to translate',
+				required: true,
+				displayOptions: {
+					show: {
+						operation: ['translate'],
+					},
+				},
+			},
+			{
+				// eslint-disable-next-line n8n-nodes-base/node-param-display-name-wrong-for-dynamic-options
+				displayName: 'Translate To',
+				name: 'translateTo',
+				type: 'options',
+				typeOptions: {
+					loadOptionsMethod: 'getLanguages',
+				},
+				default: '',
+				description:
+					'The language to use for translation of the input text, set to one of the language codes listed in <a href="https://cloud.google.com/translate/docs/languages">Language Support</a>. Choose from the list, or specify an ID using an <a href="https://docs.n8n.io/code/expressions/">expression</a>.',
+				required: true,
+				displayOptions: {
+					show: {
+						operation: ['translate'],
+					},
+				},
+			},
+		],
+	};
+
+	methods = {
+		loadOptions: {
+			async getLanguages(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+				const returnData: INodePropertyOptions[] = [];
+				const {
+					data: { languages },
+				} = await googleApiRequest.call(this, 'GET', '/language/translate/v2/languages');
+				for (const language of languages) {
+					returnData.push({
+						name: language.language.toUpperCase(),
+						value: language.language,
+					});
+				}
+				return returnData;
+			},
+		},
+	};
+
+	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
+		const items = this.getInputData();
+		const length = items.length;
+
+		const resource = this.getNodeParameter('resource', 0);
+		const operation = this.getNodeParameter('operation', 0);
+		const responseData: INodeExecutionData[] = [];
+		for (let i = 0; i < length; i++) {
+			if (resource === 'language') {
+				if (operation === 'translate') {
+					const text = this.getNodeParameter('text', i) as string;
+					const translateTo = this.getNodeParameter('translateTo', i) as string;
+
+					const response = await googleApiRequest.call(this, 'POST', '/language/translate/v2', {
+						q: text,
+						target: translateTo,
+					});
+
+					const [translation] = response.data.translations;
+
+					const executionData = this.helpers.constructExecutionMetaData(
+						this.helpers.returnJsonArray(translation as IDataObject),
+						{ itemData: { item: i } },
+					);
+
+					responseData.push(...executionData);
+				}
+			}
+		}
+
+		return [responseData];
+	}
+}