import type { IDataObject, IHookFunctions, IWebhookFunctions, ILoadOptionsFunctions, INodePropertyOptions, INodeType, INodeTypeDescription, IWebhookResponseData, } from 'n8n-workflow'; import { formIoApiRequest } from './GenericFunctions'; export class FormIoTrigger implements INodeType { description: INodeTypeDescription = { displayName: 'Form.io Trigger', name: 'formIoTrigger', icon: 'file:formio.svg', group: ['trigger'], version: 1, subtitle: '={{$parameter["event"]}}', description: 'Handle form.io events via webhooks', defaults: { name: 'Form.io Trigger', }, inputs: [], outputs: ['main'], credentials: [ { name: 'formIoApi', required: true, }, ], webhooks: [ { name: 'default', httpMethod: 'POST', responseMode: 'onReceived', path: 'webhook', }, ], properties: [ { displayName: 'Project Name or ID', name: 'projectId', type: 'options', typeOptions: { loadOptionsMethod: 'getProjects', }, required: true, default: '', description: 'Choose from the list, or specify an ID using an expression', }, { displayName: 'Form Name or ID', name: 'formId', type: 'options', typeOptions: { loadOptionsDependsOn: ['projectId'], loadOptionsMethod: 'getForms', }, required: true, default: '', description: 'Choose from the list, or specify an ID using an expression', }, { displayName: 'Trigger Events', name: 'events', type: 'multiOptions', options: [ { name: 'Submission Created', value: 'create', }, { name: 'Submission Updated', value: 'update', }, ], required: true, default: [], }, { displayName: 'Simplify', name: 'simple', type: 'boolean', default: true, description: 'Whether to return a simplified version of the response instead of the raw data', }, ], }; methods = { loadOptions: { async getProjects(this: ILoadOptionsFunctions): Promise { const projects = await formIoApiRequest.call(this, 'GET', '/project', {}); const returnData: INodePropertyOptions[] = []; for (const project of projects) { returnData.push({ name: project.title, value: project._id, }); } return returnData; }, async getForms(this: ILoadOptionsFunctions): Promise { const projectId = this.getCurrentNodeParameter('projectId') as string; const forms = await formIoApiRequest.call(this, 'GET', `/project/${projectId}/form`, {}); const returnData: INodePropertyOptions[] = []; for (const form of forms) { returnData.push({ name: form.title, value: form._id, }); } return returnData; }, }, }; webhookMethods = { default: { async checkExists(this: IHookFunctions): Promise { const webhookData = this.getWorkflowStaticData('node'); const webhookUrl = this.getNodeWebhookUrl('default'); const formId = this.getNodeParameter('formId') as string; const projectId = this.getNodeParameter('projectId') as string; const method = this.getNodeParameter('events') as string[]; const actions = await formIoApiRequest.call( this, 'GET', `/project/${projectId}/form/${formId}/action`, ); for (const action of actions) { if (action.name === 'webhook') { if ( action.settings.url === webhookUrl && action.method.length === method.length && action.method.every((value: any) => method.includes(value as string)) ) { webhookData.webhookId = action._id; return true; } } } return false; }, async create(this: IHookFunctions): Promise { const webhookData = this.getWorkflowStaticData('node'); const formId = this.getNodeParameter('formId') as string; const projectId = this.getNodeParameter('projectId') as string; const webhookUrl = this.getNodeWebhookUrl('default') as string; const method = this.getNodeParameter('events') as string[]; const payload = { data: { name: 'webhook', title: `webhook-n8n:${webhookUrl}`, method, handler: ['after'], priority: 0, settings: { method: 'post', block: false, url: webhookUrl, }, condition: { field: 'submit', }, }, }; const webhook = await formIoApiRequest.call( this, 'POST', `/project/${projectId}/form/${formId}/action`, payload, ); webhookData.webhookId = webhook._id; return true; }, async delete(this: IHookFunctions): Promise { const webhookData = this.getWorkflowStaticData('node'); const formId = this.getNodeParameter('formId') as string; const projectId = this.getNodeParameter('projectId') as string; await formIoApiRequest.call( this, 'DELETE', `/project/${projectId}/form/${formId}/action/${webhookData.webhookId}`, ); delete webhookData.webhookId; return true; }, }, }; async webhook(this: IWebhookFunctions): Promise { const req = this.getRequestObject(); const simple = this.getNodeParameter('simple') as boolean; let response = req.body.request; if (simple) { response = response.data; } return { workflowData: [this.helpers.returnJsonArray(response as IDataObject[])], }; } }