import type { IHookFunctions, IWebhookFunctions } from 'n8n-core'; import type { IDataObject, ILoadOptionsFunctions, INodePropertyOptions, INodeType, INodeTypeDescription, IWebhookResponseData, } from 'n8n-workflow'; import { NodeOperationError } from 'n8n-workflow'; import { zendeskApiRequest, zendeskApiRequestAllItems } from './GenericFunctions'; import { conditionFields } from './ConditionDescription'; import { triggerPlaceholders } from './TriggerPlaceholders'; export class ZendeskTrigger implements INodeType { description: INodeTypeDescription = { displayName: 'Zendesk Trigger', name: 'zendeskTrigger', icon: 'file:zendesk.svg', group: ['trigger'], version: 1, description: 'Handle Zendesk events via webhooks', defaults: { name: 'Zendesk Trigger', }, inputs: [], outputs: ['main'], credentials: [ { name: 'zendeskApi', required: true, displayOptions: { show: { authentication: ['apiToken'], }, }, }, { name: 'zendeskOAuth2Api', required: true, displayOptions: { show: { authentication: ['oAuth2'], }, }, }, ], webhooks: [ { name: 'default', httpMethod: 'POST', responseMode: 'onReceived', path: 'webhook', }, ], properties: [ { displayName: 'Authentication', name: 'authentication', type: 'options', options: [ { name: 'API Token', value: 'apiToken', }, { name: 'OAuth2', value: 'oAuth2', }, ], default: 'apiToken', }, { displayName: 'Service', name: 'service', type: 'options', required: true, options: [ { name: 'Support', value: 'support', }, ], default: 'support', }, { displayName: 'Options', name: 'options', type: 'collection', displayOptions: { show: { service: ['support'], }, }, default: {}, options: [ { displayName: 'Field Names or IDs', name: 'fields', description: 'The fields to return the values of. Choose from the list, or specify IDs using an expression.', type: 'multiOptions', default: [], typeOptions: { loadOptionsMethod: 'getFields', }, }, ], placeholder: 'Add Option', }, { displayName: 'Conditions', name: 'conditions', placeholder: 'Add Condition', type: 'fixedCollection', typeOptions: { multipleValues: true, }, displayOptions: { show: { service: ['support'], }, }, description: 'The condition to set', default: {}, options: [ { name: 'all', displayName: 'All', values: [...conditionFields], }, { name: 'any', displayName: 'Any', values: [...conditionFields], }, ], }, ], }; methods = { loadOptions: { // Get all the fields to display them to user so that he can // select them easily async getFields(this: ILoadOptionsFunctions): Promise { const returnData: INodePropertyOptions[] = triggerPlaceholders; const customFields = [ 'text', 'textarea', 'date', 'integer', 'decimal', 'regexp', 'multiselect', 'tagger', ]; const fields = await zendeskApiRequestAllItems.call( this, 'ticket_fields', 'GET', '/ticket_fields', ); for (const field of fields) { if (customFields.includes(field.type as string) && field.removable && field.active) { const fieldName = field.title; const fieldId = field.id; returnData.push({ name: fieldName, value: `ticket.ticket_field_${fieldId}`, description: `Custom field ${fieldName}`, }); } } return returnData; }, // Get all the groups to display them to user so that he can // select them easily async getGroups(this: ILoadOptionsFunctions): Promise { const returnData: INodePropertyOptions[] = []; const groups = await zendeskApiRequestAllItems.call(this, 'groups', 'GET', '/groups'); for (const group of groups) { const groupName = group.name; const groupId = group.id; returnData.push({ name: groupName, value: groupId, }); } return returnData; }, // Get all the users to display them to user so that he can // select them easily async getUsers(this: ILoadOptionsFunctions): Promise { const returnData: INodePropertyOptions[] = []; const users = await zendeskApiRequestAllItems.call(this, 'users', 'GET', '/users'); for (const user of users) { const userName = user.name; const userId = user.id; returnData.push({ name: userName, value: userId, }); } returnData.push({ name: 'Current User', value: 'current_user', }); returnData.push({ name: 'Requester', value: 'requester_id', }); return returnData; }, }, }; webhookMethods = { default: { async checkExists(this: IHookFunctions): Promise { const webhookUrl = this.getNodeWebhookUrl('default') as string; const webhookData = this.getWorkflowStaticData('node'); const conditions = this.getNodeParameter('conditions') as IDataObject; let endpoint = ''; const resultAll = [], resultAny = []; const conditionsAll = conditions.all as [IDataObject]; if (conditionsAll) { for (const conditionAll of conditionsAll) { const aux: IDataObject = {}; aux.field = conditionAll.field; aux.operator = conditionAll.operation; if (conditionAll.operation !== 'changed' && conditionAll.operation !== 'not_changed') { aux.value = conditionAll.value; } else { aux.value = null; } resultAll.push(aux); } } const conditionsAny = conditions.any as [IDataObject]; if (conditionsAny) { for (const conditionAny of conditionsAny) { const aux: IDataObject = {}; aux.field = conditionAny.field; aux.operator = conditionAny.operation; if (conditionAny.operation !== 'changed' && conditionAny.operation !== 'not_changed') { aux.value = conditionAny.value; } else { aux.value = null; } resultAny.push(aux); } } // get all webhooks // https://developer.zendesk.com/api-reference/event-connectors/webhooks/webhooks/#list-webhooks const { webhooks } = await zendeskApiRequest.call(this, 'GET', '/webhooks'); for (const webhook of webhooks) { if (webhook.endpoint === webhookUrl) { webhookData.targetId = webhook.id; break; } } // no target was found if (webhookData.targetId === undefined) { return false; } endpoint = '/triggers/active'; const triggers = await zendeskApiRequestAllItems.call(this, 'triggers', 'GET', endpoint); for (const trigger of triggers) { const toDeleteTriggers = []; // this trigger belong to the current target if (trigger.actions[0].value[0].toString() === webhookData.targetId?.toString()) { toDeleteTriggers.push(trigger.id); } // delete all trigger attach to this target; if (toDeleteTriggers.length !== 0) { await zendeskApiRequest.call( this, 'DELETE', '/triggers/destroy_many', {}, { ids: toDeleteTriggers.join(',') }, ); } } return false; }, async create(this: IHookFunctions): Promise { const webhookUrl = this.getNodeWebhookUrl('default') as string; const webhookData = this.getWorkflowStaticData('node'); const service = this.getNodeParameter('service') as string; if (service === 'support') { const message: IDataObject = {}; const resultAll = [], resultAny = []; const conditions = this.getNodeParameter('conditions') as IDataObject; const options = this.getNodeParameter('options') as IDataObject; if (Object.keys(conditions).length === 0) { throw new NodeOperationError(this.getNode(), 'You must have at least one condition'); } if (options.fields) { for (const field of options.fields as string[]) { message[field] = `{{${field}}}`; } } else { message['ticket.id'] = '{{ticket.id}}'; } const conditionsAll = conditions.all as [IDataObject]; if (conditionsAll) { for (const conditionAll of conditionsAll) { const aux: IDataObject = {}; aux.field = conditionAll.field; aux.operator = conditionAll.operation; if ( conditionAll.operation !== 'changed' && conditionAll.operation !== 'not_changed' ) { aux.value = conditionAll.value; } else { aux.value = null; } resultAll.push(aux); } } const conditionsAny = conditions.any as [IDataObject]; if (conditionsAny) { for (const conditionAny of conditionsAny) { const aux: IDataObject = {}; aux.field = conditionAny.field; aux.operator = conditionAny.operation; if ( conditionAny.operation !== 'changed' && conditionAny.operation !== 'not_changed' ) { aux.value = conditionAny.value; } else { aux.value = null; } resultAny.push(aux); } } const urlParts = new URL(webhookUrl); const bodyTrigger: IDataObject = { trigger: { title: `n8n-webhook:${urlParts.pathname}`, conditions: { all: resultAll, any: resultAny, }, actions: [ { field: 'notification_webhook', value: [], }, ], }, }; const bodyTarget: IDataObject = { webhook: { name: 'n8n webhook', endpoint: webhookUrl, http_method: 'POST', status: 'active', request_format: 'json', subscriptions: ['conditional_ticket_events'], }, }; let target: IDataObject = {}; // if target id exists but trigger does not then reuse the target // and create the trigger else create both if (webhookData.targetId !== undefined) { target.id = webhookData.targetId; } else { // create a webhook // https://developer.zendesk.com/api-reference/event-connectors/webhooks/webhooks/#create-or-clone-webhook target = (await zendeskApiRequest.call(this, 'POST', '/webhooks', bodyTarget)) .webhook as IDataObject; } ((bodyTrigger.trigger as IDataObject).actions as IDataObject[])[0].value = [ target.id, JSON.stringify(message), ]; const { trigger } = await zendeskApiRequest.call(this, 'POST', '/triggers', bodyTrigger); webhookData.webhookId = trigger.id; webhookData.targetId = target.id; } return true; }, async delete(this: IHookFunctions): Promise { const webhookData = this.getWorkflowStaticData('node'); try { await zendeskApiRequest.call(this, 'DELETE', `/triggers/${webhookData.webhookId}`); await zendeskApiRequest.call(this, 'DELETE', `/webhooks/${webhookData.targetId}`); } catch (error) { return false; } delete webhookData.triggerId; delete webhookData.targetId; return true; }, }, }; async webhook(this: IWebhookFunctions): Promise { const req = this.getRequestObject(); return { workflowData: [this.helpers.returnJsonArray(req.body as IDataObject)], }; } }