Google Calendar and Postgres integration

How It Works The system collects real-time wearable health data, normalizes it, and uses AI to analyze trends and risk scores. It detects anomalies by comparing with historical patterns and automatically triggers alerts and follow-up actions when thresholds are exceeded. Setup Steps Configure Webhook Endpoint - Set up webhook to receive data from wearable devices Connect Database - Initialize storage for health metrics and historical data Set Normalization Rules - Define data standardization parameters for different devices Configure AI Model - Set up health score calculation and risk prediction algorithms Define Thresholds - Establish alert triggers for critical health metrics Connect Notification Channels - Configure email and Slack integrations Set Up Reporting - Create automated report templates and schedules Test Workflow - Run end-to-end tests with sample health data Workflow Template Webhook → Store Database → Normalize Data → Calculate Health Score → Analyze Metrics → Compare Previous → Check Threshold → Generate Reports/Alerts → Email/Slack → Schedule Follow-up Workflow Steps Ingest real-time wearable data via webhook, store and standardize it, and use GPT-4 for trend analysis and risk scoring. Monitor metrics against thresholds, trigger SMS, email, or Slack alerts, generate reports, and schedule follow-ups. Setup Instructions Configure webhook, database, GPT-4 API, notifications, calendar integration, and customize alert thresholds. Prerequisites Wearable API, patient database, GPT-4 key, email SMTP, optional Slack/Twilio, calendar integration. Use Cases Monitor glucose for diabetics, track elderly vitals/fall risk, assess corporate wellness, and post-surgery recovery alerts. Customization Adjust risk algorithms, add metrics, integrate telemedicine. Benefits Early intervention reduces readmissions and automates 80% of monitoring tasks.

Who is this for? This workflow is for service-based businesses and freelancers who want to automate booking appointments via WhatsApp without relying on third-party scheduling tools. It's perfect for small teams who want full control over the reservation system and calendar integration. What problem is this workflow solving? Manually coordinating bookings through messages can be inefficient and error-prone. This workflow streamlines the entire scheduling process-from user input to calendar event creation-saving time and avoiding double-bookings. It ensures users only choose from available time slots and automatically records the meeting in your Google Calendar. What this workflow does Sends a WhatsApp message with a reservation link. Collects the user's name and preferred date. Checks availability and shows only free time slots. Allows the user to choose a time slot. Automatically creates a Google Calendar event with the selected details. Saves all data to a Postgres database for future reference. Setup Create Tables in Postgres DB Open the provided SQL script and replace "n8n" with your Postgres schema name. Execute the script to create the required tables. Add Credentials WhatsApp: Set up your WhatsApp Business API credentials using OAuth and API keys. Postgres: Connect your database where the booking data will be stored. Google Calendar: Authorize access to your calendar for event creation.

Workflow Name: 🫶 Taxi Booking Support Template was created in n8n v1.90.2 Skill Level: Mid Categories: n8n, Chatbot Stacks Schedule Trigger node Postgres node AI Agent node Google Calendar node Execute Sub-workflow If node, Switch node, Code node, Edit Fields (Set) Prerequisite Sub-workflow: Demo Call Back (or your own node) Production Features Scaling Design* for n8n Queue mode* in production environment Customize Expired Booking Actions example Multi-Language** Design What this workflow does? This is a n8n Taxi Booking Support, the background node to process the job at scheduled. It is scheduled to check the database for outstanding booking and handle the after sales process. In this particular case, it will check for OPEN booking over 10 minutes, then update the booking status from OPEN to CANCELLED, delete the Calendar event and send a reply to the user. How it works The Schedule Trigger node is scheduled to run every 5 minutes. It will check the database for OPEN or HOLD booking. For OPEN booking update the booking status to CANCELLED delete the Calendar event send a reply to the user Optional: The AI Agent is used to create the reply message to the user in Multi-language based on the language set in the booking. Set up instructions Pull and Set up the required SQL from our Github repository. Create you Postgres credentials, refer to n8n integration documentation for more information. Select your Credentials in Open Hold Booking and Set Cancel Booking. Create your Google Calendar credentials, refer to n8n integration documentation for more information. Create a Google Calendar, e.g. DEMO Select your Credentials in Delete Event, and select the above Calendar Remember to activate this workflow for schedule to run. How to adjust it to your needs There should be more status for the booking. The current action only check for OPEN and HOLD booking, you can do more based on your needs. You can replace the sub-workflow trigger Call Back to another flow as needs.

Workflow Name: 👷‍♂️ Taxi Booking Worker Template was created in n8n v1.90.2 Skill Level: High Categories: n8n, Chatbot Stacks Execute Sub-workflow Trigger node Chat Trigger node Redis node Postgres node Google Calendar node Execute Sub-workflow If node, Switch node, Code node, Edit Fields (Set) Prerequisite Execute Sub-workflow Trigger: Call In Center (or your own node) Sub-workflow: Demo Call Back (or your own node) Production Features Scaling Design* for n8n Queue mode* in production environment Customize Open Booking Action Integrate with Long Term Memory backup. Error Management** What this workflow does? This is a n8n Taxi Booking Worker, the worker node to process the job. It will wait for message from the Call Center node and handle the real process here. In this particular case, it will check the input number for the selected provider, then update the booking from NEW to OPEN, then clean up the orphan data. How it works The Form Trigger node will wait for the message from any node with the input in number. First check for NEW booking under the same chat session For input 0, which is cancel Reset the user session in Redis memory For input 1 or above, which is the provider selection number Set the booking status to OPEN in database OPTIONAL Save the summary to User Memory database OPTIONAL Create a new Event in Google Calendar and sync to the database Reset the user session in Redis memory Afterward, process data clean up Delete the provider selection number queue in Redis Delete the route data in Redis OPTIONAL Delete the chat memory with current session Finally, output the response to the Call Back node Set up instructions Pull and Set up the required SQL from our Github repository. Create you Postgres credentials, refer to n8n integration documentation for more information. Select your Credentials in Booking, Set Open Booking, Sync Booking Google Cal, and Save User Memory. Create you Redis credentials, refer to n8n integration documentation for more information. Select your Credentials in Reset Session, Reset Session 2, Delete Provider Number and Delete Route Data. Create your Google Calendar credentials, refer to n8n integration documentation for more information. Create a Google Calendar, e.g. DEMO Select your Credentials in Create Event, and select the above Calendar FOR TEST ONLY. Enable the Telegram Test Output for testing from the Test Input. How to adjust it to your needs You can specific a number to trigger the specific action based on your needs. The current action only create a event in Google Calendar, you can do more based on your needs. You can replace the sub-workflow trigger Flow Trigger and Call Back to another flow as needs.

This workflow automates the full invoicing and payment process using n8n and Xero. It allows businesses to generate invoices, track payments, send WhatsApp notifications, and keep records synced automatically, without manual follow-ups or repetitive admin work. It’s designed to plug into your existing tools and scale as your operations grow. How It Works A webhook receives invoice or payment data from your app, form, or system Xero automatically creates or updates the invoice Payments are tracked and verified in real time Clients receive WhatsApp notifications for invoices, reminders, or payments All records are logged in a database and synced to Google Calendar and Google Sheets Automated responses confirm successful actions or errors Everything runs in the background once connected. Setup Connect your Xero account to n8n Set up a database (PostgreSQL via Supabase) for logging invoices and payments Connect Google Calendar for scheduling and tracking Connect Twilio WhatsApp for client notifications Point your system or payment source to the provided webhook URL No complex coding required. I guide you through the setup and ensure everything is tested. Need Help or Customization? If you’d like this workflow customized for your business or want help setting it up properly, feel free to reach out. 🔗 Connect with me on LinkedIn: 👉 Click here to connect I’m happy to walk you through it or adapt it to your specific use case.

📆 Workflow: AI Appointment Booking Assistant ⚡ About the Creators This workflow was created by Varritech Technologies, a cutting-edge software agency that helps founders and operators go from idea to production 5× faster using AI. Based in New York City, we specialize in automating client-facing workflows like appointment setting, lead engagement, and support follow-ups. Need help adapting this flow for your business? Reach out at varritech.com. 🧠 What This Workflow Does This flow connects to varritech.com/booking and uses AI agents to intelligently manage the first stage of appointment scheduling — collecting user intent, formatting the data, confirming via calendar + email + SMS, and boosting follow-through with personalized voice messages. 🏗️ Architecture Overview The workflow is designed to maximize conversion and show-up rate by combining structured automation with human-style messaging: 🔗 Webhook Trigger — Receives booking form submissions 🧠 AI Agents — Format phone numbers & craft natural confirmation messages 📅 Google Calendar — Schedules the meeting with auto-generated Meet link 📧 Emails — Send branded confirmation to client + internal team 🎙️ ElevenLabs TTS — Turns a personalized message into audio ☁️ Cloudinary Upload — Hosts the voice clip for SMS sharing 📲 Twilio SMS — Sends a text with the appointment time + audio 📦 Node-by-Node Breakdown flowchart LR A[Webhook: Booking Submission] --> B[Function: Extract + Format Data] B --> C[Langchain Agent: Format Phone] C --> D[Postgres: Store Appointment] B --> E[Google Calendar: Create Event] B --> F[Gmail: Notify Internal Team] B --> G[Gmail: Confirm to Client] B --> H[Langchain Agent: Voice Message Script] H --> I[Function: Escape for JSON] I --> J[HTTP: ElevenLabs TTS] J --> K[Function: Rename to MP3] K --> L[HTTP: Cloudinary Upload] L --> M[Merge Data for Twilio] M --> N[Twilio: Send Confirmation Text] 🔍 Design Rationale & Best Practices AI Personalization Boosts Follow-Through Personalized messages and human-sounding voice notes significantly increase user engagement and trust. Multi-Channel Confirmation Email + calendar + SMS ensures the user receives the booking details via their preferred method. AI Agents for Edge Cases Agents are used for formatting and natural-language generation to make the system flexible and future-proof. Minimal Manual Input Required Clients simply fill out a form — the rest is handled with high-quality automation. Fully Extensible Swap in different voice APIs, CRMs, or calendar providers with minimal changes to the core logic.