n8n/packages/nodes-base/nodes/Mailchimp/MailchimpTrigger.node.ts
2019-12-11 18:31:12 -05:00

264 lines
6.8 KiB
TypeScript

import {
IHookFunctions,
IWebhookFunctions,
} from 'n8n-core';
import {
IDataObject,
INodeTypeDescription,
INodeType,
IWebhookResponseData,
ILoadOptionsFunctions,
INodePropertyOptions,
} from 'n8n-workflow';
import {
mailchimpApiRequest,
} from './GenericFunctions';
export class MailchimpTrigger implements INodeType {
description: INodeTypeDescription = {
displayName: 'Mailchimp Trigger',
name: 'Mailchimp',
icon: 'file:mailchimp.png',
group: ['trigger'],
version: 1,
description: 'Handle Mailchimp events via webhooks',
defaults: {
name: 'Mailchimp Trigger',
color: '#32325d',
},
inputs: [],
outputs: ['main'],
credentials: [
{
name: 'mailchimpApi',
required: true,
}
],
webhooks: [
{
name: 'setup',
httpMethod: 'GET',
reponseMode: 'onReceived',
path: 'webhook',
},
{
name: 'default',
httpMethod: 'POST',
reponseMode: 'onReceived',
path: 'webhook',
}
],
properties: [
{
displayName: 'List',
name: 'list',
type: 'options',
required: true,
default: [],
description: 'The list that is gonna fire the event.',
typeOptions: {
loadOptionsMethod: 'getLists'
},
options: [],
},
{
displayName: 'Events',
name: 'events',
type: 'multiOptions',
required: true,
default: [],
description: 'The events that can trigger the webhook and whether they are enabled.',
options: [
{
name: 'Subscribe',
value: 'subscribe',
description: 'Whether the webhook is triggered when a list subscriber is added.',
},
{
name: 'Unsubscribe',
value: 'unsubscribe',
description: 'Whether the webhook is triggered when a list member unsubscribes.',
},
{
name: 'Profile Updated',
value: 'profile',
description: `Whether the webhook is triggered when a subscriber's profile is updated.`,
},
{
name: 'Cleaned',
value: 'cleaned',
description: `Whether the webhook is triggered when a subscriber's email address is cleaned from the list.`,
},
{
name: 'Email Address Updated',
value: 'upemail',
description: `Whether the webhook is triggered when a subscriber's email address is changed.`,
},
{
name: 'Campaign Sent',
value: 'campaign',
description: `Whether the webhook is triggered when a campaign is sent or cancelled.`,
},
],
},
{
displayName: 'Sources',
name: 'sources',
type: 'multiOptions',
required: true,
default: [],
description: 'The possible sources of any events that can trigger the webhook and whether they are enabled.',
options: [
{
name: 'User',
value: 'user',
description: 'Whether the webhook is triggered by subscriber-initiated actions.',
},
{
name: 'Admin',
value: 'admin',
description: 'Whether the webhook is triggered by admin-initiated actions in the web interface.',
},
{
name: 'API',
value: 'api',
description: `Whether the webhook is triggered by actions initiated via the API.`,
},
],
}
],
};
methods = {
loadOptions: {
// Get all the available lists to display them to user so that he can
// select them easily
async getLists(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
const returnData: INodePropertyOptions[] = [];
let lists, response;
try {
response = await mailchimpApiRequest.call(this, '/lists', 'GET');
lists = response.lists;
} catch (err) {
throw new Error(`Mailchimp Error: ${err}`);
}
for (const list of lists) {
const listName = list.name;
const listId = list.id;
returnData.push({
name: listName,
value: listId,
});
}
return returnData;
},
},
};
// @ts-ignore (because of request)
webhookMethods = {
default: {
async checkExists(this: IHookFunctions): Promise<boolean> {
const webhookData = this.getWorkflowStaticData('node');
const listId = this.getNodeParameter('list') as string;
if (webhookData.webhookId === undefined) {
// No webhook id is set so no webhook can exist
return false;
}
const endpoint = `/lists/${listId}/webhooks/${webhookData.webhookId}`;
try {
await mailchimpApiRequest.call(this, endpoint, 'GET');
} catch (err) {
if (err.statusCode === 404) {
return false;
}
throw new Error(`Mailchimp Error: ${err}`);
}
return true;
},
async create(this: IHookFunctions): Promise<boolean> {
let webhook;
const webhookUrl = this.getNodeWebhookUrl('default');
const listId = this.getNodeParameter('list') as string;
const events = this.getNodeParameter('events', []) as string[];
const sources = this.getNodeParameter('sources', []) as string[];
const body = {
url: webhookUrl,
events: events.reduce((object, currentValue) => {
// @ts-ignore
object[currentValue] = true;
return object;
}, {}),
sources: sources.reduce((object, currentValue) => {
// @ts-ignore
object[currentValue] = true;
return object;
}, {}),
};
const endpoint = `/lists/${listId}/webhooks`;
try {
webhook = await mailchimpApiRequest.call(this, endpoint, 'POST', body);
} catch (e) {
throw e;
}
if (webhook.id === undefined) {
return false;
}
const webhookData = this.getWorkflowStaticData('node');
webhookData.webhookId = webhook.id as string;
webhookData.events = events;
webhookData.sources = sources;
return true;
},
async delete(this: IHookFunctions): Promise<boolean> {
const webhookData = this.getWorkflowStaticData('node');
const listId = this.getNodeParameter('list') as string;
if (webhookData.webhookId !== undefined) {
const endpoint = `/lists/${listId}/webhooks/${webhookData.webhookId}`;
try {
await mailchimpApiRequest.call(this, endpoint, 'DELETE', {});
} catch (e) {
return false;
}
delete webhookData.webhookId;
delete webhookData.events;
delete webhookData.sources;
}
return true;
},
},
};
async webhook(this: IWebhookFunctions): Promise<IWebhookResponseData> {
const webhookData = this.getWorkflowStaticData('node') as IDataObject;
const webhookName = this.getWebhookName();
if (webhookName === 'setup') {
// Is a create webhook confirmation request
const res = this.getResponseObject();
res.status(200).end();
return {
noWebhookResponse: true,
};
}
const req = this.getRequestObject();
if (req.body.id !== webhookData.id) {
return {};
}
// @ts-ignore
if (!webhookData.events.includes(req.body.type)
// @ts-ignore
&& !webhookData.sources.includes(req.body.type)) {
return {};
}
return {
workflowData: [
this.helpers.returnJsonArray(req.body)
],
};
}
}