Complete booking system with Google Calendar, business hours & REST API
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This workflow has 27 nodes and runs when an HTTP POST request hits its webhook URL (plus 1 other trigger). Along the way it connects Google Calendar.
How it runs
Trigger: When an HTTP POST request hits its webhook URL (plus 1 other trigger).
- Wait: waits 2.2 seconds
- Wait: waits 2.2 seconds
- Validate Input (Code): runs custom JavaScript code
- ConfigTimeSlots (Edit Fields (Set)): sets 1 field: configuredAvailableTimeSlots
- Validation Check (If): checks a condition and branches into true / false
- Validate Date (Code): runs custom JavaScript code
- Business Hours Check (Code): runs custom JavaScript code
- Prepare Validation Error (Code): runs custom JavaScript code
- Check Public Holiday Calendar (Google Calendar): get many
- Time Validation Check (If): checks a condition and branches into true / false
…plus 15 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (7)
- Webhook
n8n-nodes-base.webhook - Code
n8n-nodes-base.code - If
n8n-nodes-base.if - Google Calendar
n8n-nodes-base.googleCalendar - Respond to Webhook
n8n-nodes-base.respondToWebhook - Wait
n8n-nodes-base.wait - Edit Fields (Set)
n8n-nodes-base.set
From the author
GCalendar Smart Booking System Demo github code Try yourself 📋 Description Transform your booking chaos into streamlined automation with this production-ready GCalendar Smart Booking System. This comprehensive n8n workflow eliminates weeks of custom…