feat(Google Cloud Firestore Node): Add support for service account and document creation with id

packages/nodes-base/nodes/Google/Firebase/CloudFirestore/DocumentDescription.ts

@@ -109,6 +109,18 @@ export const documentFields: INodeProperties[] = [
 		description: 'Collection name',
 		required: true,
 	},
+	{
+		displayName: 'Document ID',
+		name: 'documentId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['document'],
+				operation: ['create'],
+			},
+		},
+		default: '',
+	},
 	{
 		displayName: 'Columns / Attributes',
 		name: 'columns',

packages/nodes-base/nodes/Google/Firebase/CloudFirestore/GenericFunctions.ts

@@ -9,12 +9,12 @@ import type {
 import { NodeApiError } from 'n8n-workflow';
 
 import moment from 'moment-timezone';
+import { getGoogleAccessToken } from '../../GenericFunctions';
 
 export async function googleApiRequest(
 	this: IExecuteFunctions | ILoadOptionsFunctions,
 	method: IHttpRequestMethods,
 	resource: string,
-
 	body: any = {},
 	qs: IDataObject = {},
 	uri: string | null = null,
@@ -37,12 +37,20 @@ export async function googleApiRequest(
 			delete options.body;
 		}
 
+		let credentialType = 'googleFirebaseCloudFirestoreOAuth2Api';
+		const authentication = this.getNodeParameter('authentication', 0) as string;
+
+		if (authentication === 'serviceAccount') {
+			const credentials = await this.getCredentials('googleApi');
+			credentialType = 'googleApi';
+
+			const { access_token } = await getGoogleAccessToken.call(this, credentials, 'firestore');
+
+			(options.headers as IDataObject).Authorization = `Bearer ${access_token}`;
+		}
+
 		//@ts-ignore
-		return await this.helpers.requestOAuth2.call(
-			this,
-			'googleFirebaseCloudFirestoreOAuth2Api',
-			options,
-		);
+		return await this.helpers.requestWithAuthentication.call(this, credentialType, options);
 	} catch (error) {
 		throw new NodeApiError(this.getNode(), error as JsonObject);
 	}

packages/nodes-base/nodes/Google/Firebase/CloudFirestore/GoogleFirebaseCloudFirestore.node.ts

@@ -40,9 +40,40 @@ export class GoogleFirebaseCloudFirestore implements INodeType {
 			{
 				name: 'googleFirebaseCloudFirestoreOAuth2Api',
 				required: true,
+				displayOptions: {
+					show: {
+						authentication: ['googleFirebaseCloudFirestoreOAuth2Api'],
+					},
+				},
+			},
+			{
+				name: 'googleApi',
+				required: true,
+				displayOptions: {
+					show: {
+						authentication: ['serviceAccount'],
+					},
+				},
 			},
 		],
 		properties: [
+			{
+				displayName: 'Authentication',
+				name: 'authentication',
+				type: 'options',
+				options: [
+					{
+						// eslint-disable-next-line n8n-nodes-base/node-param-display-name-miscased
+						name: 'OAuth2 (recommended)',
+						value: 'googleFirebaseCloudFirestoreOAuth2Api',
+					},
+					{
+						name: 'Service Account',
+						value: 'serviceAccount',
+					},
+				],
+				default: 'googleFirebaseCloudFirestoreOAuth2Api',
+			},
 			{
 				displayName: 'Resource',
 				name: 'resource',
@@ -157,6 +188,7 @@ export class GoogleFirebaseCloudFirestore implements INodeType {
 					items.map(async (item: IDataObject, i: number) => {
 						const collection = this.getNodeParameter('collection', i) as string;
 						const columns = this.getNodeParameter('columns', i) as string;
+						const documentId = this.getNodeParameter('documentId', i) as string;
 						const columnList = columns.split(',').map((column) => column.trim());
 						const document = { fields: {} };
 						columnList.map((column) => {
@@ -174,6 +206,7 @@ export class GoogleFirebaseCloudFirestore implements INodeType {
 							'POST',
 							`/${projectId}/databases/${database}/documents/${collection}`,
 							document,
+							{ documentId },
 						);
 
 						responseData.id = (responseData.name as string).split('/').pop();

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

@@ -52,6 +52,10 @@ const googleServiceAccountScopes = {
 		'https://www.googleapis.com/auth/cloud-translation',
 		'https://www.googleapis.com/auth/cloud-platform',
 	],
+	firestore: [
+		'https://www.googleapis.com/auth/datastore',
+		'https://www.googleapis.com/auth/firebase',
+	],
 };
 
 type GoogleServiceAccount = keyof typeof googleServiceAccountScopes;