n8n/packages/nodes-base/nodes/Strava/StravaTrigger.node.ts
Mutasem Aldmour 276eaea4bf
Clean up node description (#1883)
Co-authored-by: Jan <janober@users.noreply.github.com>
2021-07-03 14:40:16 +02:00

282 lines
7 KiB
TypeScript

import {
IHookFunctions,
IWebhookFunctions,
} from 'n8n-core';
import {
IDataObject,
INodeType,
INodeTypeDescription,
IWebhookResponseData,
NodeApiError,
} from 'n8n-workflow';
import {
stravaApiRequest,
} from './GenericFunctions';
import {
randomBytes,
} from 'crypto';
export class StravaTrigger implements INodeType {
description: INodeTypeDescription = {
displayName: 'Strava Trigger',
name: 'stravaTrigger',
icon: 'file:strava.svg',
group: ['trigger'],
version: 1,
description: 'Starts the workflow when Strava events occur',
defaults: {
name: 'Strava Trigger',
color: '#ea5929',
},
inputs: [],
outputs: ['main'],
credentials: [
{
name: 'stravaOAuth2Api',
required: true,
},
],
webhooks: [
{
name: 'setup',
httpMethod: 'GET',
responseMode: 'onReceived',
path: 'webhook',
},
{
name: 'default',
httpMethod: 'POST',
responseMode: 'onReceived',
path: 'webhook',
},
],
properties: [
{
displayName: 'Object',
name: 'object',
type: 'options',
options: [
{
name: '*',
value: '*',
},
{
name: 'Activity',
value: 'activity',
},
{
name: 'Athlete',
value: 'athlete',
},
],
default: '*',
},
{
displayName: 'Event',
name: 'event',
type: 'options',
options: [
{
name: '*',
value: '*',
},
{
name: 'created',
value: 'create',
},
{
name: 'Deleted',
value: 'delete',
},
{
name: 'Updated',
value: 'update',
},
],
default: '*',
},
{
displayName: 'Resolve Data',
name: 'resolveData',
type: 'boolean',
default: true,
description: 'By default the webhook-data only contain the Object ID. If this option gets activated it<br />will resolve the data automatically.',
},
{
displayName: 'Options',
name: 'options',
type: 'collection',
placeholder: 'Add Option',
default: {},
options: [
{
displayName: 'Delete If Exist',
name: 'deleteIfExist',
type: 'boolean',
default: false,
description: `Strava allows just one subscription at all times. If you want to delete the current subscription to make<br>
room for a new subcription with the current parameters, set this parameter to true. Keep in mind this is a destructive operation.`,
},
],
},
],
};
// @ts-ignore (because of request)
webhookMethods = {
default: {
async checkExists(this: IHookFunctions): Promise<boolean> {
const webhookUrl = this.getNodeWebhookUrl('default');
const webhookData = this.getWorkflowStaticData('node');
// Check all the webhooks which exist already if it is identical to the
// one that is supposed to get created.
const endpoint = '/push_subscriptions';
const webhooks = await stravaApiRequest.call(this, 'GET', endpoint, {});
for (const webhook of webhooks) {
if (webhook.callback_url === webhookUrl) {
webhookData.webhookId = webhook.id;
return true;
}
}
return false;
},
async create(this: IHookFunctions): Promise<boolean> {
const webhookData = this.getWorkflowStaticData('node');
const webhookUrl = this.getNodeWebhookUrl('default');
const endpoint = '/push_subscriptions';
const body = {
callback_url: webhookUrl,
verify_token: randomBytes(20).toString('hex') as string,
};
let responseData;
try {
responseData = await stravaApiRequest.call(this, 'POST', endpoint, body);
} catch (error) {
const apiErrorResponse = error.cause.response;
if (apiErrorResponse?.body?.errors) {
const errors = apiErrorResponse.body.errors;
for (error of errors) {
// if there is a subscription already created
if (error.resource === 'PushSubscription' && error.code === 'already exists') {
const options = this.getNodeParameter('options') as IDataObject;
//get the current subscription
const webhooks = await stravaApiRequest.call(this, 'GET', `/push_subscriptions`, {});
if (options.deleteIfExist) {
// delete the subscription
await stravaApiRequest.call(this, 'DELETE', `/push_subscriptions/${webhooks[0].id}`);
// now there is room create a subscription with the n8n data
const body = {
callback_url: webhookUrl,
verify_token: randomBytes(20).toString('hex') as string,
};
responseData = await stravaApiRequest.call(this, 'POST', `/push_subscriptions`, body);
} else {
error.message = `A subscription already exists [${webhooks[0].callback_url}]. If you want to delete this subcription and create a new one with the current parameters please go to options and set delete if exist to true`;
throw error;
}
}
}
}
if (!responseData) {
throw error;
}
}
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 = `/push_subscriptions/${webhookData.webhookId}`;
try {
await stravaApiRequest.call(this, 'DELETE', endpoint);
} catch (error) {
return false;
}
// Remove from the static workflow data so that it is clear
// that no webhooks are registred anymore
delete webhookData.webhookId;
}
return true;
},
},
};
async webhook(this: IWebhookFunctions): Promise<IWebhookResponseData> {
const body = this.getBodyData() as IDataObject;
const query = this.getQueryData() as IDataObject;
const object = this.getNodeParameter('object');
const event = this.getNodeParameter('event');
const resolveData = this.getNodeParameter('resolveData') as boolean;
let objectType, eventType;
if (object === '*') {
objectType = ['activity', 'athlete'];
} else {
objectType = [object];
}
if (event === '*') {
eventType = ['create', 'update', 'delete'];
} else {
eventType = [event];
}
if (this.getWebhookName() === 'setup') {
if (query['hub.challenge']) {
// Is a create webhook confirmation request
const res = this.getResponseObject();
res.status(200).json({ 'hub.challenge': query['hub.challenge'] }).end();
return {
noWebhookResponse: true,
};
}
}
if (object !== '*' && !objectType.includes(body.object_type as string)) {
return {};
}
if (event !== '*' && !eventType.includes(body.aspect_type as string)) {
return {};
}
if (resolveData) {
let endpoint = `/athletes/${body.object_id}/stats`;
if (body.object_type === 'activity') {
endpoint = `/activities/${body.object_id}`;
}
body.object_data = await stravaApiRequest.call(this, 'GET', endpoint);
}
return {
workflowData: [
this.helpers.returnJsonArray(body),
],
};
}
}