✨ WooCommerce trigger

packages/nodes-base/nodes/WooCommerce/WooCommerceTrigger.node.ts

@@ -0,0 +1,181 @@
+import {
+	IHookFunctions,
+	IWebhookFunctions,
+} from 'n8n-core';
+
+import {
+	IDataObject,
+	INodeTypeDescription,
+	INodeType,
+	IWebhookResponseData,
+} from 'n8n-workflow';
+
+import {
+	woocommerceApiRequest,
+	getAutomaticSecret,
+} from './GenericFunctions';
+
+import { createHmac } from 'crypto';
+
+export class WooCommerceTrigger implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'WooCommerce Trigger',
+		name: 'wooCommerceTrigger',
+		icon: 'file:woocommerce.png',
+		group: ['trigger'],
+		version: 1,
+		description: 'Handle WooCommerce events via webhooks',
+		defaults: {
+			name: 'WooCommerce Trigger',
+			color: '#96588a',
+		},
+		inputs: [],
+		outputs: ['main'],
+		credentials: [
+			{
+				name: 'wooCommerceApi',
+				required: true,
+			}
+		],
+		webhooks: [
+			{
+				name: 'default',
+				httpMethod: 'POST',
+				responseMode: 'onReceived',
+				path: 'webhook',
+			},
+		],
+		properties: [
+			{
+				displayName: 'Event',
+				name: 'event',
+				type: 'options',
+				required: true,
+				default: '',
+				options: [
+					{
+						name: 'coupon.created',
+						value: 'coupon.created',
+					},
+					{
+						name: 'coupon.updated',
+						value: 'coupon.updated',
+					},
+					{
+						name: 'coupon.deleted',
+						value: 'coupon.deleted',
+					},
+					{
+						name: 'customer.created',
+						value: 'customer.created',
+					},
+					{
+						name: 'customer.updated',
+						value: 'customer.updated',
+					},
+					{
+						name: 'customer.deleted',
+						value: 'customer.deleted',
+					},
+					{
+						name: 'order.created',
+						value: 'order.created',
+					},
+					{
+						name: 'order.updated',
+						value: 'order.updated',
+					},
+					{
+						name: 'order.deleted',
+						value: 'order.deleted',
+					},
+					{
+						name: 'product.created',
+						value: 'product.created',
+					},
+					{
+						name: 'product.updated',
+						value: 'product.updated',
+					},
+					{
+						name: 'product.deleted',
+						value: 'product.deleted',
+					},
+				],
+				description: 'Determines which resource events the webhook is triggered for.',
+			},
+		],
+
+	};
+
+	// @ts-ignore
+	webhookMethods = {
+		default: {
+			async checkExists(this: IHookFunctions): Promise<boolean> {
+				const webhookData = this.getWorkflowStaticData('node');
+				if (webhookData.webhookId === undefined) {
+					return false;
+				}
+				const endpoint = `/webhooks/${webhookData.webhookId}`;
+				try {
+					await woocommerceApiRequest.call(this, 'GET', endpoint);
+				} catch (e) {
+					return false;
+				}
+				return true;
+			},
+			async create(this: IHookFunctions): Promise<boolean> {
+				const credentials = this.getCredentials('wooCommerceApi');
+				const webhookUrl = this.getNodeWebhookUrl('default');
+				const webhookData = this.getWorkflowStaticData('node');
+				const event = this.getNodeParameter('event') as string;
+				const secret = getAutomaticSecret(credentials!);
+				const endpoint = '/webhooks';
+				const body: IDataObject = {
+					delivery_url: webhookUrl,
+					topic: event,
+					secret,
+				};
+				const { id } = await woocommerceApiRequest.call(this, 'POST', endpoint, body);
+				webhookData.webhookId = id;
+				webhookData.secret = secret;
+				return true;
+			},
+			async delete(this: IHookFunctions): Promise<boolean> {
+				const webhookData = this.getWorkflowStaticData('node');
+				const endpoint = `/webhooks/${webhookData.webhookId}`;
+				try {
+					await woocommerceApiRequest.call(this, 'DELETE', endpoint, {}, { force: true });
+				} catch(error) {
+					return false;
+				}
+				delete webhookData.webhookId;
+				delete webhookData.secret;
+				return true;
+			},
+		},
+	};
+
+	//@ts-ignore
+	async webhook(this: IWebhookFunctions): Promise<IWebhookResponseData> {
+		const req = this.getRequestObject();
+		const headerData = this.getHeaderData();
+		const webhookData = this.getWorkflowStaticData('node');
+		//@ts-ignore
+		if (headerData['x-wc-webhook-id'] === undefined) {
+			return {};
+		}
+		//@ts-ignore
+		const computedSignature = createHmac('sha256',webhookData.secret as string).update(req.rawBody).digest('base64');
+		//@ts-ignore
+		if (headerData['x-wc-webhook-signature'] !== computedSignature) {
+			// Signature is not valid so ignore call
+			return {};
+		}
+		return {
+			workflowData: [
+				this.helpers.returnJsonArray(req.body),
+			],
+		}
+	}
+}