import { ITriggerFunctions } from 'n8n-core'; import { INodeType, INodeTypeDescription, ITriggerResponse, NodeOperationError, } from 'n8n-workflow'; export class Interval implements INodeType { description: INodeTypeDescription = { displayName: 'Interval', name: 'interval', icon: 'fa:hourglass', group: ['trigger', 'schedule'], version: 1, hidden: true, description: 'Triggers the workflow in a given interval', eventTriggerDescription: '', activationMessage: 'Your interval trigger will now trigger executions on the schedule you have defined.', defaults: { name: 'Interval', color: '#00FF00', }, // eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node inputs: [], outputs: ['main'], properties: [ { displayName: 'This workflow will run on the schedule you define here once you activate it.

For testing, you can also trigger it manually: by going back to the canvas and clicking ‘execute workflow’', name: 'notice', type: 'notice', default: '', }, { displayName: 'Interval', name: 'interval', type: 'number', typeOptions: { minValue: 1, }, default: 1, description: 'Interval value', }, { displayName: 'Unit', name: 'unit', type: 'options', options: [ { name: 'Seconds', value: 'seconds', }, { name: 'Minutes', value: 'minutes', }, { name: 'Hours', value: 'hours', }, ], default: 'seconds', description: 'Unit of the interval value', }, ], }; async trigger(this: ITriggerFunctions): Promise { const interval = this.getNodeParameter('interval') as number; const unit = this.getNodeParameter('unit') as string; if (interval <= 0) { throw new NodeOperationError( this.getNode(), 'The interval has to be set to at least 1 or higher!', ); } let intervalValue = interval; if (unit === 'minutes') { intervalValue *= 60; } if (unit === 'hours') { intervalValue *= 60 * 60; } const executeTrigger = () => { this.emit([this.helpers.returnJsonArray([{}])]); }; intervalValue *= 1000; // Reference: https://nodejs.org/api/timers.html#timers_setinterval_callback_delay_args if (intervalValue > 2147483647) { throw new NodeOperationError(this.getNode(), 'The interval value is too large.'); } const intervalObj = setInterval(executeTrigger, intervalValue); async function closeFunction() { clearInterval(intervalObj); } async function manualTriggerFunction() { executeTrigger(); } return { closeFunction, manualTriggerFunction, }; } }