n8n/packages/nodes-base/nodes/Flow/FlowTrigger.node.ts
2020-01-04 22:19:10 -06:00

225 lines
5.1 KiB
TypeScript

import {
IHookFunctions,
IWebhookFunctions,
} from 'n8n-core';
import {
IDataObject,
INodeTypeDescription,
INodeType,
IWebhookResponseData,
} from 'n8n-workflow';
import {
flowApiRequest,
} from './GenericFunctions';
export class FlowTrigger implements INodeType {
description: INodeTypeDescription = {
displayName: 'Flow Trigger',
name: 'flow',
icon: 'file:flow.png',
group: ['trigger'],
version: 1,
description: 'Handle Flow events via webhooks',
defaults: {
name: 'Flow Trigger',
color: '#559922',
},
inputs: [],
outputs: ['main'],
credentials: [
{
name: 'flowApi',
required: true,
}
],
webhooks: [
{
name: 'default',
httpMethod: 'POST',
responseMode: 'onReceived',
path: 'webhook',
},
],
properties: [
{
displayName: 'Resource',
name: 'resource',
type: 'options',
default: '',
options:
[
{
name: 'Project',
value: 'list'
},
{
name: 'Task',
value: 'task'
},
],
description: 'Resource that triggers the webhook',
},
{
displayName: 'Project ID',
name: 'listIds',
type: 'string',
required: true,
default: '',
displayOptions: {
show: {
resource:[
'list'
]
},
hide: {
resource: [
'task'
]
}
},
description: `Lists ids, perhaps known better as "Projects" separated by ,`,
},
{
displayName: 'Task ID',
name: 'taskIds',
type: 'string',
required: true,
default: '',
displayOptions: {
show: {
resource:[
'task'
]
},
hide: {
resource: [
'list'
]
}
},
description: `Taks ids separated by ,`,
},
],
};
// @ts-ignore
webhookMethods = {
default: {
async checkExists(this: IHookFunctions): Promise<boolean> {
const credentials = this.getCredentials('flowApi');
if (credentials === undefined) {
throw new Error('No credentials got returned!');
}
let webhooks;
const qs: IDataObject = {};
const webhookData = this.getWorkflowStaticData('node');
if (!Array.isArray(webhookData.webhookIds)) {
webhookData.webhookIds = [];
}
if (!(webhookData.webhookIds as [number]).length) {
return false;
}
qs.organization_id = credentials.organizationId as number;
const endpoint = `/integration_webhooks`;
try {
webhooks = await flowApiRequest.call(this, 'GET', endpoint, {}, qs);
webhooks = webhooks.integration_webhooks;
} catch (e) {
throw e;
}
for (const webhook of webhooks) {
// @ts-ignore
if (webhookData.webhookIds.includes(webhook.id)) {
continue;
} else {
return false;
}
}
return true;
},
async create(this: IHookFunctions): Promise<boolean> {
const credentials = this.getCredentials('flowApi');
if (credentials === undefined) {
throw new Error('No credentials got returned!');
}
let resourceIds, body, responseData;
const webhookUrl = this.getNodeWebhookUrl('default');
const webhookData = this.getWorkflowStaticData('node');
const resource = this.getNodeParameter('resource') as string;
const endpoint = `/integration_webhooks`;
if (resource === 'list') {
resourceIds = (this.getNodeParameter('listIds') as string).split(',');
}
if (resource === 'task') {
resourceIds = (this.getNodeParameter('taskIds') as string).split(',');
}
// @ts-ignore
for (const resourceId of resourceIds ) {
body = {
organization_id: credentials.organizationId as number,
integration_webhook: {
name: 'n8n-trigger',
url: webhookUrl,
resource_type: resource,
resource_id: parseInt(resourceId, 10),
}
};
try {
responseData = await flowApiRequest.call(this, 'POST', endpoint, body);
} catch(error) {
return false;
}
if (responseData.integration_webhook === undefined
|| responseData.integration_webhook.id === undefined) {
// Required data is missing so was not successful
return false;
}
// @ts-ignore
webhookData.webhookIds.push(responseData.integration_webhook.id);
}
return true;
},
async delete(this: IHookFunctions): Promise<boolean> {
const credentials = this.getCredentials('flowApi');
if (credentials === undefined) {
throw new Error('No credentials got returned!');
}
const qs: IDataObject = {};
const webhookData = this.getWorkflowStaticData('node');
qs.organization_id = credentials.organizationId as number;
// @ts-ignore
if (webhookData.webhookIds.length > 0) {
// @ts-ignore
for (const webhookId of webhookData.webhookIds ) {
const endpoint = `/integration_webhooks/${webhookId}`;
try {
await flowApiRequest.call(this, 'DELETE', endpoint, {}, qs);
} catch (e) {
return false;
}
}
delete webhookData.webhookIds;
}
return true;
},
},
};
async webhook(this: IWebhookFunctions): Promise<IWebhookResponseData> {
const req = this.getRequestObject();
return {
workflowData: [
this.helpers.returnJsonArray(req.body)
],
};
}
}