✨ Google Calendar Integration

done

✨ Google Calendar Integration

packages/cli/src/Server.ts

@@ -203,7 +203,9 @@ class App {
 					});
 				}
 
-				jwt.verify(token, getKey, {}, (err: Error, decoded: string) => {
+				jwt.verify(token, getKey, {}, (err: Error,
+					//decoded: string
+					) => {
 					if (err) return ResponseHelper.jwtAuthAuthorizationError(res, "Invalid token");
 
 					next();

packages/nodes-base/credentials/GoogleOAuth2Api.credentials.ts

@@ -0,0 +1,49 @@
+import {
+	ICredentialType,
+	NodePropertyTypes,
+} from 'n8n-workflow';
+
+const scopes = [
+	'https://www.googleapis.com/auth/calendar',
+	'https://www.googleapis.com/auth/calendar.events',
+];
+
+export class GoogleOAuth2Api implements ICredentialType {
+	name = 'googleOAuth2Api';
+	extends = [
+		'oAuth2Api',
+	];
+	displayName = 'Google OAuth2 API';
+	properties = [
+		{
+			displayName: 'Authorization URL',
+			name: 'authUrl',
+			type: 'hidden' as NodePropertyTypes,
+			default: 'https://accounts.google.com/o/oauth2/v2/auth',
+		},
+		{
+			displayName: 'Access Token URL',
+			name: 'accessTokenUrl',
+			type: 'hidden' as NodePropertyTypes,
+			default: 'https://oauth2.googleapis.com/token',
+		},
+		{
+			displayName: 'Scope',
+			name: 'scope',
+			type: 'hidden' as NodePropertyTypes,
+			default: scopes.join(' '),
+		},
+		{
+			displayName: 'Auth URI Query Parameters',
+			name: 'authQueryParameters',
+			type: 'hidden' as NodePropertyTypes,
+			default: 'access_type=offline',
+		},
+		{
+			displayName: 'Authentication',
+			name: 'authentication',
+			type: 'hidden' as NodePropertyTypes,
+			default: 'body',
+		},
+	];
+}

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

@@ -0,0 +1,26 @@
+import { IDataObject } from "n8n-workflow";
+
+export interface IReminder {
+	useDefault?: boolean;
+	overrides?: IDataObject[];
+}
+
+export interface IEvent {
+	attendees?: IDataObject[];
+	colorId?: string;
+	description?: string;
+	end?: IDataObject;
+	guestsCanInviteOthers?: boolean;
+	guestsCanModify?: boolean;
+	guestsCanSeeOtherGuests?: boolean;
+	id?: string;
+	location?: string;
+	maxAttendees?: number;
+	recurrence?: string[];
+	reminders?: IReminder;
+	sendUpdates?: string;
+	start?: IDataObject;
+	summary?: string;
+	transparency?: string;
+	visibility?: string;
+}

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

@@ -0,0 +1,57 @@
+import { OptionsWithUri } from 'request';
+import {
+	IExecuteFunctions,
+	IExecuteSingleFunctions,
+	ILoadOptionsFunctions,
+} from 'n8n-core';
+import {
+	IDataObject
+} from 'n8n-workflow';
+
+export async function googleApiRequest(this: IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions, method: string, resource: string, body: any = {}, qs: IDataObject = {}, uri?: string, headers: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
+	const options: OptionsWithUri = {
+		headers: {
+			'Content-Type': 'application/json',
+		},
+		method,
+		body,
+		qs,
+		uri: uri || `https://www.googleapis.com${resource}`,
+		json: true
+	};
+	try {
+		if (Object.keys(headers).length !== 0) {
+			options.headers = Object.assign({}, options.headers, headers);
+		}
+		if (Object.keys(body).length === 0) {
+			delete options.body;
+		}
+		//@ts-ignore
+		return await this.helpers.requestOAuth.call(this, 'googleOAuth2Api', options);
+	} catch (error) {
+		if (error.response && error.response.body && error.response.body.message) {
+			// Try to return the error prettier
+			throw new Error(`Google Calendar error response [${error.statusCode}]: ${error.response.body.message}`);
+		}
+		throw error;
+	}
+}
+
+export async function googleApiRequestAllItems(this: IExecuteFunctions | ILoadOptionsFunctions, propertyName: string ,method: string, endpoint: string, body: any = {}, query: IDataObject = {}): Promise<any> { // tslint:disable-line:no-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]);
+	} while (
+		responseData['nextPageToken'] !== undefined &&
+		responseData['nextPageToken'] !== ''
+	);
+
+	return returnData;
+}

packages/nodes-base/nodes/Google/GoogleCalendar.node.ts

@@ -0,0 +1,412 @@
+import {
+	IExecuteFunctions,
+} from 'n8n-core';
+
+import {
+	IDataObject,
+	INodeExecutionData,
+	INodeTypeDescription,
+	INodeType,
+	ILoadOptionsFunctions,
+	INodePropertyOptions,
+} from 'n8n-workflow';
+
+import {
+	googleApiRequest,
+	googleApiRequestAllItems,
+} from './GenericFunctions';
+
+import {
+	eventOperations,
+	eventFields,
+} from './EventDescription';
+
+import {
+	IEvent,
+} from './EventInterface';
+
+import * as moment from 'moment-timezone';
+
+export class GoogleCalendar implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'Google Calendar',
+		name: 'googleCalendar',
+		icon: 'file:googleCalendar.png',
+		group: ['input'],
+		version: 1,
+		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
+		description: 'Consume Google Calendar API.',
+		defaults: {
+			name: 'Google Calendar',
+			color: '#3E87E4',
+		},
+		inputs: ['main'],
+		outputs: ['main'],
+		credentials: [
+			{
+				name: 'googleOAuth2Api',
+				required: true,
+			},
+		],
+		properties: [
+			{
+				displayName: 'Resource',
+				name: 'resource',
+				type: 'options',
+				options: [
+					{
+						name: 'Event',
+						value: 'event',
+					},
+				],
+				default: 'event',
+				description: 'The resource to operate on.',
+			},
+			...eventOperations,
+			...eventFields,
+		],
+	};
+
+	methods = {
+		loadOptions: {
+			// Get all the calendars to display them to user so that he can
+			// select them easily
+			async getCalendars(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+				const returnData: INodePropertyOptions[] = [];
+				const calendars = await googleApiRequestAllItems.call(this, 'items', 'GET', '/calendar/v3/users/me/calendarList');
+				for (const calendar of calendars) {
+					const calendarName = calendar.summary;
+					const calendarId = calendar.id;
+					returnData.push({
+						name: calendarName,
+						value: calendarId,
+					});
+				}
+				return returnData;
+			},
+			// Get all the colors to display them to user so that he can
+			// select them easily
+			async getColors(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+				const returnData: INodePropertyOptions[] = [];
+				const { calendar } = await googleApiRequest.call(this, 'GET', '/calendar/v3/colors');
+				for (let key of  Object.keys(calendar)) {
+					const colorName = calendar[key].background;
+					const colorId = key;
+					returnData.push({
+						name: `${colorName} - ${colorId}`,
+						value: colorId,
+					});
+				}
+				return returnData;
+			},
+			// Get all the timezones to display them to user so that he can
+			// select them easily
+			async getTimezones(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+				const returnData: INodePropertyOptions[] = [];
+				for (const timezone of moment.tz.names()) {
+					const timezoneName = timezone;
+					const timezoneId = timezone;
+					returnData.push({
+						name: timezoneName,
+						value: timezoneId,
+					});
+				}
+				return returnData;
+			},
+		},
+	};
+
+	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
+		const items = this.getInputData();
+		const returnData: IDataObject[] = [];
+		const length = items.length as unknown as number;
+		const qs: IDataObject = {};
+		let responseData;
+		const resource = this.getNodeParameter('resource', 0) as string;
+		const operation = this.getNodeParameter('operation', 0) as string;
+		for (let i = 0; i < length; i++) {
+			if (resource === 'event') {
+				//https://developers.google.com/calendar/v3/reference/events/insert
+				if (operation === 'create') {
+					const calendarId = this.getNodeParameter('calendar', i) as string;
+					const start = this.getNodeParameter('start', i) as string;
+					const end = this.getNodeParameter('end', i) as string;
+					const useDefaultReminders = this.getNodeParameter('useDefaultReminders', i) as boolean;
+					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
+					if (additionalFields.maxAttendees) {
+						qs.maxAttendees = additionalFields.maxAttendees as number;
+					}
+					if (additionalFields.sendNotifications) {
+						qs.sendNotifications = additionalFields.sendNotifications as boolean;
+					}
+					if (additionalFields.sendUpdates) {
+						qs.sendUpdates = additionalFields.sendUpdates as string;
+					}
+					const body: IEvent = {
+						start: {
+							dateTime: start,
+							timeZone: additionalFields.timeZone || this.getTimezone(),
+						},
+						end: {
+							dateTime: end,
+							timeZone: additionalFields.timeZone || this.getTimezone(),
+						}
+					};
+					if (additionalFields.attendees) {
+						body.attendees = (additionalFields.attendees as string[]).map(attendee => {
+							return { email: attendee };
+						});
+					}
+					if (additionalFields.color) {
+						body.colorId = additionalFields.color as string;
+					}
+					if (additionalFields.description) {
+						body.description = additionalFields.description as string;
+					}
+					if (additionalFields.guestsCanInviteOthers) {
+						body.guestsCanInviteOthers = additionalFields.guestsCanInviteOthers as boolean;
+					}
+					if (additionalFields.guestsCanModify) {
+						body.guestsCanModify = additionalFields.guestsCanModify as boolean;
+					}
+					if (additionalFields.guestsCanSeeOtherGuests) {
+						body.guestsCanSeeOtherGuests = additionalFields.guestsCanSeeOtherGuests as boolean;
+					}
+					if (additionalFields.id) {
+						body.id = additionalFields.id as string;
+					}
+					if (additionalFields.location) {
+						body.location = additionalFields.location as string;
+					}
+					if (additionalFields.summary) {
+						body.summary = additionalFields.summary as string;
+					}
+					if (additionalFields.showMeAs) {
+						body.transparency = additionalFields.showMeAs as string;
+					}
+					if (additionalFields.visibility) {
+						body.visibility = additionalFields.visibility as string;
+					}
+					if (!useDefaultReminders) {
+						const reminders = (this.getNodeParameter('remindersUi', i) as IDataObject).remindersValues as IDataObject[];
+						body.reminders = {
+							useDefault: false,
+						};
+						if (reminders) {
+							body.reminders.overrides = reminders;
+						}
+					}
+					if (additionalFields.allday) {
+						body.start = {
+							date: moment(start).utc().format('YYYY-MM-DD'),
+						};
+						body.end = {
+							date: moment(end).utc().format('YYYY-MM-DD'),
+						};
+					}
+					//exampel: RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=10;UNTIL=20110701T170000Z
+					//https://icalendar.org/iCalendar-RFC-5545/3-8-5-3-recurrence-rule.html
+					body.recurrence = [];
+					if (additionalFields.repeatHowManyTimes
+					&& additionalFields.repeatUntil) {
+						throw new Error(`You can set either 'Repeat How Many Times' or 'Repeat Until' but not both`);
+					}
+					if (additionalFields.repeatFrecuency) {
+						body.recurrence?.push(`FREQ=${(additionalFields.repeatFrecuency as string).toUpperCase()};`);
+					}
+					if (additionalFields.repeatHowManyTimes) {
+						body.recurrence?.push(`COUNT=${additionalFields.repeatHowManyTimes};`);
+					}
+					if (additionalFields.repeatUntil) {
+						body.recurrence?.push(`UNTIL=${moment(additionalFields.repeatUntil as string).utc().format('YYYYMMDDTHHmmss')}Z`);
+					}
+					if (body.recurrence.length !== 0) {
+						body.recurrence = [`RRULE:${body.recurrence.join('')}`];
+					}
+					responseData = await googleApiRequest.call(this, 'POST', `/calendar/v3/calendars/${calendarId}/events`, body, qs);
+				}
+				//https://developers.google.com/calendar/v3/reference/events/delete
+				if (operation === 'delete') {
+					const calendarId = this.getNodeParameter('calendar', i) as string;
+					const eventId = this.getNodeParameter('eventId', i) as string;
+					const options = this.getNodeParameter('options', i) as IDataObject;
+					if (options.sendUpdates) {
+						qs.sendUpdates = options.sendUpdates as number;
+					}
+					responseData = await googleApiRequest.call(this, 'DELETE', `/calendar/v3/calendars/${calendarId}/events/${eventId}`, {});
+					responseData = { success: true  };
+				}
+				//https://developers.google.com/calendar/v3/reference/events/get
+				if (operation === 'get') {
+					const calendarId = this.getNodeParameter('calendar', i) as string;
+					const eventId = this.getNodeParameter('eventId', i) as string;
+					const options = this.getNodeParameter('options', i) as IDataObject;
+					if (options.maxAttendees) {
+						qs.maxAttendees = options.maxAttendees as number;
+					}
+					if (options.timeZone) {
+						qs.timeZone = options.timeZone as string;
+					}
+					responseData = await googleApiRequest.call(this, 'GET', `/calendar/v3/calendars/${calendarId}/events/${eventId}`, {}, qs);
+				}
+				//https://developers.google.com/calendar/v3/reference/events/list
+				if (operation === 'getAll') {
+					const returnAll = this.getNodeParameter('returnAll', i) as boolean;
+					const calendarId = this.getNodeParameter('calendar', i) as string;
+					const options = this.getNodeParameter('options', i) as IDataObject;
+					if (options.iCalUID) {
+						qs.iCalUID = options.iCalUID as string;
+					}
+					if (options.maxAttendees) {
+						qs.maxAttendees = options.maxAttendees as number;
+					}
+					if (options.orderBy) {
+						qs.orderBy = options.orderBy as number;
+					}
+					if (options.query) {
+						qs.q = options.query as number;
+					}
+					if (options.showDeleted) {
+						qs.showDeleted = options.showDeleted as boolean;
+					}
+					if (options.showHiddenInvitations) {
+						qs.showHiddenInvitations = options.showHiddenInvitations as boolean;
+					}
+					if (options.singleEvents) {
+						qs.singleEvents = options.singleEvents as boolean;
+					}
+					if (options.timeMax) {
+						qs.timeMax = options.timeMax as string;
+					}
+					if (options.timeMin) {
+						qs.timeMin = options.timeMin as string;
+					}
+					if (options.timeZone) {
+						qs.timeZone = options.timeZone as string;
+					}
+					if (options.updatedMin) {
+						qs.updatedMin = options.updatedMin as string;
+					}
+					if (returnAll) {
+						responseData = await googleApiRequestAllItems.call(this, 'items', 'GET', `/calendar/v3/calendars/${calendarId}/events`, {}, qs);
+					} else {
+						qs.maxResults = this.getNodeParameter('limit', i) as number;
+						responseData = await googleApiRequest.call(this, 'GET', `/calendar/v3/calendars/${calendarId}/events`, {}, qs);
+						responseData = responseData.items;
+					}
+				}
+				//https://developers.google.com/calendar/v3/reference/events/patch
+				if (operation === 'update') {
+					const calendarId = this.getNodeParameter('calendar', i) as string;
+					const eventId = this.getNodeParameter('eventId', i) as string;
+					const useDefaultReminders = this.getNodeParameter('useDefaultReminders', i) as boolean;
+					const updateFields = this.getNodeParameter('updateFields', i) as IDataObject;
+					if (updateFields.maxAttendees) {
+						qs.maxAttendees = updateFields.maxAttendees as number;
+					}
+					if (updateFields.sendNotifications) {
+						qs.sendNotifications = updateFields.sendNotifications as boolean;
+					}
+					if (updateFields.sendUpdates) {
+						qs.sendUpdates = updateFields.sendUpdates as string;
+					}
+					const body: IEvent = {};
+					if (updateFields.start) {
+						body.start = {
+							dateTime: updateFields.start,
+							timeZone: updateFields.timeZone || this.getTimezone(),
+						};
+					}
+					if (updateFields.end) {
+						body.end = {
+							dateTime: updateFields.end,
+							timeZone: updateFields.timeZone || this.getTimezone(),
+						};
+					}
+					if (updateFields.attendees) {
+						body.attendees = (updateFields.attendees as string[]).map(attendee => {
+							return { email: attendee };
+						});
+					}
+					if (updateFields.color) {
+						body.colorId = updateFields.color as string;
+					}
+					if (updateFields.description) {
+						body.description = updateFields.description as string;
+					}
+					if (updateFields.guestsCanInviteOthers) {
+						body.guestsCanInviteOthers = updateFields.guestsCanInviteOthers as boolean;
+					}
+					if (updateFields.guestsCanModify) {
+						body.guestsCanModify = updateFields.guestsCanModify as boolean;
+					}
+					if (updateFields.guestsCanSeeOtherGuests) {
+						body.guestsCanSeeOtherGuests = updateFields.guestsCanSeeOtherGuests as boolean;
+					}
+					if (updateFields.id) {
+						body.id = updateFields.id as string;
+					}
+					if (updateFields.location) {
+						body.location = updateFields.location as string;
+					}
+					if (updateFields.summary) {
+						body.summary = updateFields.summary as string;
+					}
+					if (updateFields.showMeAs) {
+						body.transparency = updateFields.showMeAs as string;
+					}
+					if (updateFields.visibility) {
+						body.visibility = updateFields.visibility as string;
+					}
+					if (!useDefaultReminders) {
+						const reminders = (this.getNodeParameter('remindersUi', i) as IDataObject).remindersValues as IDataObject[];
+						body.reminders = {
+							useDefault: false,
+						};
+						if (reminders) {
+							body.reminders.overrides = reminders;
+						}
+					}
+					if (updateFields.allday
+					&&	updateFields.start
+					&& updateFields.end) {
+						body.start = {
+							date: moment(updateFields.start as string).utc().format('YYYY-MM-DD'),
+						};
+						body.end = {
+							date: moment(updateFields.end as string).utc().format('YYYY-MM-DD'),
+						};
+					}
+					//exampel: RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=10;UNTIL=20110701T170000Z
+					//https://icalendar.org/iCalendar-RFC-5545/3-8-5-3-recurrence-rule.html
+					body.recurrence = [];
+					if (updateFields.repeatHowManyTimes
+					&& updateFields.repeatUntil) {
+						throw new Error(`You can set either 'Repeat How Many Times' or 'Repeat Until' but not both`);
+					}
+					if (updateFields.repeatFrecuency) {
+						body.recurrence?.push(`FREQ=${(updateFields.repeatFrecuency as string).toUpperCase()};`);
+					}
+					if (updateFields.repeatHowManyTimes) {
+						body.recurrence?.push(`COUNT=${updateFields.repeatHowManyTimes};`);
+					}
+					if (updateFields.repeatUntil) {
+						body.recurrence?.push(`UNTIL=${moment(updateFields.repeatUntil as string).utc().format('YYYYMMDDTHHmmss')}Z`);
+					}
+					if (body.recurrence.length !== 0) {
+						body.recurrence = [`RRULE:${body.recurrence.join('')}`];
+					} else {
+						delete body.recurrence;
+					}
+					responseData = await googleApiRequest.call(this, 'PATCH', `/calendar/v3/calendars/${calendarId}/events/${eventId}`, body, qs);
+				}
+			}
+		}
+		if (Array.isArray(responseData)) {
+			returnData.push.apply(returnData, responseData as IDataObject[]);
+		} else if (responseData !== undefined) {
+			returnData.push(responseData as IDataObject);
+		}
+		return [this.helpers.returnJsonArray(returnData)];
+	}
+}

packages/nodes-base/package.json

@@ -42,7 +42,8 @@
             "dist/credentials/GithubApi.credentials.js",
             "dist/credentials/GithubOAuth2Api.credentials.js",
             "dist/credentials/GitlabApi.credentials.js",
-            "dist/credentials/GoogleApi.credentials.js",
+			"dist/credentials/GoogleApi.credentials.js",
+			"dist/credentials/GoogleOAuth2Api.credentials.js",
             "dist/credentials/HttpBasicAuth.credentials.js",
             "dist/credentials/HttpDigestAuth.credentials.js",
             "dist/credentials/HttpHeaderAuth.credentials.js",
@@ -115,7 +116,8 @@
             "dist/nodes/Github/Github.node.js",
             "dist/nodes/Github/GithubTrigger.node.js",
             "dist/nodes/Gitlab/Gitlab.node.js",
-            "dist/nodes/Gitlab/GitlabTrigger.node.js",
+			"dist/nodes/Gitlab/GitlabTrigger.node.js",
+			"dist/nodes/Google/GoogleCalendar.node.js",
             "dist/nodes/Google/GoogleDrive.node.js",
             "dist/nodes/Google/GoogleSheets.node.js",
             "dist/nodes/GraphQL/GraphQL.node.js",
@@ -189,7 +191,8 @@
         "@types/gm": "^1.18.2",
         "@types/imap-simple": "^4.2.0",
         "@types/jest": "^24.0.18",
-        "@types/lodash.set": "^4.3.6",
+		"@types/lodash.set": "^4.3.6",
+		"@types/moment-timezone": "^0.5.12",
         "@types/mongodb": "^3.3.6",
         "@types/node": "^10.10.1",
         "@types/nodemailer": "^4.6.5",
@@ -215,7 +218,8 @@
         "imap-simple": "^4.3.0",
         "lodash.get": "^4.4.2",
         "lodash.set": "^4.3.2",
-        "lodash.unset": "^4.5.2",
+		"lodash.unset": "^4.5.2",
+		"moment-timezone": "0.5.28",
         "mongodb": "^3.3.2",
         "mysql2": "^2.0.1",
         "n8n-core": "~0.20.0",