n8n/packages/nodes-base/nodes/MailerLite/MailerLiteTrigger.node.ts

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import {
IHookFunctions,
IWebhookFunctions,
} from 'n8n-core';
import {
IDataObject,
INodeType,
INodeTypeDescription,
IWebhookResponseData,
} from 'n8n-workflow';
import {
mailerliteApiRequest,
} from './GenericFunctions';
export class MailerLiteTrigger implements INodeType {
description: INodeTypeDescription = {
displayName: 'MailerLite Trigger',
name: 'mailerLiteTrigger',
icon: 'file:mailerLite.png',
group: ['trigger'],
version: 1,
description: 'Starts the workflow when a MailerLite events occurs.',
defaults: {
name: 'MailerLite Trigger',
color: '#58be72',
},
inputs: [],
outputs: ['main'],
credentials: [
{
name: 'mailerLiteApi',
required: true,
},
],
webhooks: [
{
name: 'default',
httpMethod: 'POST',
responseMode: 'onReceived',
path: 'webhook',
},
],
properties: [
{
displayName: 'Event',
name: 'event',
type: 'options',
options: [
{
name: 'Campaign Sent',
value: 'campaign.sent',
description: `Fired when campaign is sent.`,
},
{
name: 'Subscriber Added to Group',
value: 'subscriber.add_to_group',
description: `Fired when a subscriber is added to a group.`,
},
{
name: 'Subscriber Added Throught Webform',
value: 'subscriber.added_through_webform',
description: `Fired when a subscriber is added though a form.`,
},
{
name: 'Subscriber Autonomation Completed',
value: 'subscriber.automation_complete',
description: `Fired when subscriber finishes automation.`,
},
{
name: 'Subscriber Autonomation Triggered',
value: 'subscriber.automation_triggered',
description: `Fired when subscriber starts automation.`,
},
{
name: 'Subscriber Bounced',
value: 'subscriber.bounced',
description: `Fired when an email address bounces.`,
},
{
name: 'Subscriber Created',
value: 'subscriber.create',
description: 'Fired when a new subscriber is added to an account.',
},
{
name: 'Subscriber Complained',
value: 'subscriber.complaint',
description: `Fired when subscriber marks a campaign as a spam.`,
},
{
name: 'Subscriber Removed from Group',
value: 'subscriber.remove_from_group',
description: `Fired when a subscriber is removed from a group.`,
},
{
name: 'Subscriber Unsubscribe',
value: 'subscriber.unsubscribe',
description: `Fired when a subscriber becomes unsubscribed.`,
},
{
name: 'Subscriber Updated',
value: 'subscriber.update',
description: `Fired when any of the subscriber's custom fields are updated.`,
},
],
required: true,
default: [],
description: 'The events to listen to.',
},
],
};
// @ts-ignore (because of request)
webhookMethods = {
default: {
async checkExists(this: IHookFunctions): Promise<boolean> {
const webhookUrl = this.getNodeWebhookUrl('default');
const webhookData = this.getWorkflowStaticData('node');
const event = this.getNodeParameter('event') as string;
// Check all the webhooks which exist already if it is identical to the
// one that is supposed to get created.
const endpoint = '/webhooks';
const { webhooks } = await mailerliteApiRequest.call(this, 'GET', endpoint, {});
for (const webhook of webhooks) {
if (webhook.url === webhookUrl &&
webhook.event === event) {
// Set webhook-id to be sure that it can be deleted
webhookData.webhookId = webhook.id as string;
return true;
}
}
return false;
},
async create(this: IHookFunctions): Promise<boolean> {
const webhookData = this.getWorkflowStaticData('node');
const webhookUrl = this.getNodeWebhookUrl('default');
const event = this.getNodeParameter('event') as string;
const endpoint = '/webhooks';
const body = {
url: webhookUrl,
event,
};
const responseData = await mailerliteApiRequest.call(this, 'POST', endpoint, body);
if (responseData.id === undefined) {
// Required data is missing so was not successful
return false;
}
webhookData.webhookId = responseData.id as string;
return true;
},
async delete(this: IHookFunctions): Promise<boolean> {
const webhookData = this.getWorkflowStaticData('node');
if (webhookData.webhookId !== undefined) {
const endpoint = `/webhooks/${webhookData.webhookId}`;
try {
await mailerliteApiRequest.call(this, 'DELETE', endpoint);
} catch (e) {
return false;
}
// Remove from the static workflow data so that it is clear
// that no webhooks are registred anymore
delete webhookData.webhookId;
}
return true;
},
},
};
async webhook(this: IWebhookFunctions): Promise<IWebhookResponseData> {
const body = this.getBodyData() as IDataObject;
const events = body.events as IDataObject[];
return {
workflowData: [
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this.helpers.returnJsonArray(events),
],
};
}
}