n8n/packages/nodes-base/nodes/Calendly/CalendlyTrigger.node.ts
2020-03-13 13:17:38 +01:00

147 lines
3.5 KiB
TypeScript

import {
IHookFunctions,
IWebhookFunctions,
} from 'n8n-core';
import {
INodeTypeDescription,
INodeType,
IWebhookResponseData,
} from 'n8n-workflow';
import {
calendlyApiRequest,
} from './GenericFunctions';
export class CalendlyTrigger implements INodeType {
description: INodeTypeDescription = {
displayName: 'Calendly Trigger',
name: 'calendlyTrigger',
icon: 'file:calendly.png',
group: ['trigger'],
version: 1,
description: 'Starts the workflow when Calendly events occure.',
defaults: {
name: 'Calendly Trigger',
color: '#374252',
},
inputs: [],
outputs: ['main'],
credentials: [
{
name: 'calendlyApi',
required: true,
},
],
webhooks: [
{
name: 'default',
httpMethod: 'POST',
responseMode: 'onReceived',
path: 'webhook',
},
],
properties: [
{
displayName: 'Events',
name: 'events',
type: 'multiOptions',
options: [
{
name: 'invitee.created',
value: 'invitee.created',
description: 'Receive notifications when a new Calendly event is created',
},
{
name: 'invitee.canceled',
value: 'invitee.canceled',
description: 'Receive notifications when a Calendly event is canceled',
},
],
default: [],
required: true,
},
],
};
// @ts-ignore (because of request)
webhookMethods = {
default: {
async checkExists(this: IHookFunctions): Promise<boolean> {
const webhookUrl = this.getNodeWebhookUrl('default');
const webhookData = this.getWorkflowStaticData('node');
const events = this.getNodeParameter('events') as string;
// Check all the webhooks which exist already if it is identical to the
// one that is supposed to get created.
const endpoint = '/hooks';
const { data } = await calendlyApiRequest.call(this, 'GET', endpoint, {});
for (const webhook of data) {
if (webhook.attributes.url === webhookUrl) {
for (const event of events) {
if (!webhook.attributes.events.includes(event)) {
return false;
}
}
}
// 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 events = this.getNodeParameter('events') as string;
const endpoint = '/hooks';
const body = {
url: webhookUrl,
events,
};
const responseData = await calendlyApiRequest.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 = `/hooks/${webhookData.webhookId}`;
try {
await calendlyApiRequest.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 bodyData = this.getBodyData();
return {
workflowData: [
this.helpers.returnJsonArray(bodyData),
],
};
}
}