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packages/nodes-base/nodes/Google/Translate/GenericFunctions.ts

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+import type {
+	IDataObject,
+	IExecuteFunctions,
+	IHttpRequestMethods,
+	ILoadOptionsFunctions,
+	IRequestOptions,
+	JsonObject,
+} from 'n8n-workflow';
+import { NodeApiError } from 'n8n-workflow';
+
+import { getGoogleAccessToken } from '../GenericFunctions';
+
+export async function googleApiRequest(
+	this: IExecuteFunctions | ILoadOptionsFunctions,
+	method: IHttpRequestMethods,
+	resource: string,
+
+	body: any = {},
+	qs: IDataObject = {},
+	uri?: string,
+	headers: IDataObject = {},
+): Promise<any> {
+	const authenticationMethod = this.getNodeParameter(
+		'authentication',
+		0,
+		'serviceAccount',
+	) as string;
+	const options: IRequestOptions = {
+		headers: {
+			'Content-Type': 'application/json',
+		},
+		method,
+		body,
+		qs,
+		uri: uri || `https://translation.googleapis.com${resource}`,
+		json: true,
+	};
+	try {
+		if (Object.keys(headers).length !== 0) {
+			options.headers = Object.assign({}, options.headers, headers);
+		}
+		if (Object.keys(body as IDataObject).length === 0) {
+			delete options.body;
+		}
+
+		if (authenticationMethod === 'serviceAccount') {
+			const credentials = await this.getCredentials('googleApi');
+
+			const { access_token } = await getGoogleAccessToken.call(this, credentials, 'translate');
+
+			options.headers!.Authorization = `Bearer ${access_token}`;
+
+			return await this.helpers.request(options);
+		} else {
+			return await this.helpers.requestOAuth2.call(this, 'googleTranslateOAuth2Api', options);
+		}
+	} catch (error) {
+		throw new NodeApiError(this.getNode(), error as JsonObject);
+	}
+}
+
+export async function googleApiRequestAllItems(
+	this: IExecuteFunctions | ILoadOptionsFunctions,
+	propertyName: string,
+	method: IHttpRequestMethods,
+	endpoint: string,
+
+	body: any = {},
+	query: IDataObject = {},
+): Promise<any> {
+	const returnData: IDataObject[] = [];
+
+	let responseData;
+	query.maxResults = 100;
+
+	do {
+		responseData = await googleApiRequest.call(this, method, endpoint, body, query);
+		query.pageToken = responseData.nextPageToken;
+		returnData.push.apply(returnData, responseData[propertyName] as IDataObject[]);
+	} while (responseData.nextPageToken !== undefined && responseData.nextPageToken !== '');
+
+	return returnData;
+}

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

@@ -0,0 +1,18 @@
+{
+	"node": "n8n-nodes-base.googleTranslate",
+	"nodeVersion": "1.0",
+	"codexVersion": "1.0",
+	"categories": ["Utility"],
+	"resources": {
+		"credentialDocumentation": [
+			{
+				"url": "https://docs.n8n.io/integrations/builtin/credentials/google/oauth-single-service/"
+			}
+		],
+		"primaryDocumentation": [
+			{
+				"url": "https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.googletranslate/"
+			}
+		]
+	}
+}

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

@@ -0,0 +1,220 @@
+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];
+	}
+}

packages/nodes-base/nodes/Google/Translate/__schema__/v2.0.0/language/translate.json

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+{
+    "type": "object",
+    "properties": {
+        "detectedSourceLanguage": {
+            "type": "string"
+        },
+        "translatedText": {
+            "type": "string"
+        }
+    },
+    "version": 1
+}