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Gmail and Supabase integration

Save yourself the work of writing custom integrations for Gmail and Supabase and use n8n instead. Build adaptable and scalable Communication, HITL, and Data & Storage workflows that work with your technology stack. All within a building experience you will love.

How to connect Gmail and Supabase

  • Step 1: Create a new workflow
  • Step 2: Add and configure nodes
  • Step 3: Connect
  • Step 4: Customize and extend your integration
  • Step 5: Test and activate your workflow

Step 1: Create a new workflow and add the first step

In n8n, click the "Add workflow" button in the Workflows tab to create a new workflow. Add the starting point – a trigger on when your workflow should run: an app event, a schedule, a webhook call, another workflow, an AI chat, or a manual trigger. Sometimes, the HTTP Request node might already serve as your starting point.

Gmail and Supabase integration: Create a new workflow and add the first step

Step 2: Add and configure Gmail and Supabase nodes

You can find Gmail and Supabase in the nodes panel. Drag them onto your workflow canvas, selecting their actions. Click each node, choose a credential, and authenticate to grant n8n access. Configure Gmail and Supabase nodes one by one: input data on the left, parameters in the middle, and output data on the right.

Gmail and Supabase integration: Add and configure Gmail and Supabase nodes

Step 3: Connect Gmail and Supabase

A connection establishes a link between Gmail and Supabase (or vice versa) to route data through the workflow. Data flows from the output of one node to the input of another. You can have single or multiple connections for each node.

Gmail and Supabase integration: Connect Gmail and Supabase

Step 4: Customize and extend your Gmail and Supabase integration

Use n8n's core nodes such as If, Split Out, Merge, and others to transform and manipulate data. Write custom JavaScript or Python in the Code node and run it as a step in your workflow. Connect Gmail and Supabase with any of n8n’s 1000+ integrations, and incorporate advanced AI logic into your workflows.

Gmail and Supabase integration: Customize and extend your Gmail and Supabase integration

Step 5: Test and activate your Gmail and Supabase workflow

Save and run the workflow to see if everything works as expected. Based on your configuration, data should flow from Gmail to Supabase or vice versa. Easily debug your workflow: you can check past executions to isolate and fix the mistake. Once you've tested everything, make sure to save your workflow and activate it.

Gmail and Supabase integration: Test and activate your Gmail and Supabase workflow

Smart Email Assistant: Automate Customer Support with AI & Supabase

Intelligent Email Support System with Vector Database

Overview

This n8n workflow automates email support using AI and vector database technology to provide smart, context-aware responses. It seamlessly integrates email automation and document management, ensuring efficient customer support.

📌 System Components

✉️ Email Support System

Email Monitoring & Classification

Gmail trigger node monitoring inbox
AI-powered email classification
Intelligent routing (support vs non-support inquiries)

AI Response Generation

LangChain agent for response automation
OpenAI integration for NLP-driven replies
Vector-based knowledge retrieval
Automated draft creation in Gmail

Vector Database System

Supabase vector store for document management
OpenAI embeddings for vector conversion
Fast and efficient similarity search

📂 Document Management System

Google Drive Integration

Monitors specific folders for new/updated files
Automatic document processing
Supports various file formats

Document Processing Pipeline

Auto file download & text extraction
Smart text chunking for better indexing
Embedding generation via OpenAI
Storage in Supabase vector database

🔄 Workflow Processes

📧 Email Support Flow

Monitor Gmail inbox for new emails
AI classification of incoming messages
Route support emails to AI response generator
Perform vector similarity search for knowledge retrieval
Generate personalized AI-driven response
Create email drafts in Gmail

📁 Document Management Flow

Monitor Google Drive for new/updated files
Auto-download and process documents
Clean up outdated vector entries for updated files
Extract and split document text efficiently
Generate OpenAI embeddings
Store processed data in Supabase vector DB

⚙️ Setup Instructions

1️⃣ Prerequisites

Supabase** account & project
OpenAI API key**
Gmail account** with OAuth2 setup
Google Drive API** access
n8n installation**

2️⃣ Supabase Database Setup

-- Create the vector extension
create extension if not exists vector;

-- Create the documents table
create table documents (
id bigserial primary key,
content text,
metadata jsonb,
embedding vector(1536)
);

-- Create an index for similarity search
create index on documents using ivfflat (embedding vector_cosine_ops)
with (lists = 100);

3️⃣ Google Drive Setup

Create & configure two monitored folders:
RAG folder for new documents
documents
Assign correct folder permissions
Add folder IDs to the workflow

4️⃣ Document Processing Configuration

Set up triggers for file creation and file updates
Configure text extraction:
Define chunk size & overlap settings
Set document metadata processing

🔍 Maintenance & Optimization

📌 Regular Tasks

Monitor system performance
Update the knowledge base regularly
Review AI response quality
Optimize vector search parameters
Clean up outdated document embeddings

✅ Best Practices

Document Organization

Maintain structured folders & naming conventions
Keep knowledge base content updated

System Optimization

Track AI classification accuracy
Tune response times & chunk sizes
Perform regular database maintenance

🛠️ Troubleshooting

Email Issues

Verify Gmail API credentials
Check AI service uptime
Monitor classification performance

Document Processing Issues

Ensure correct file permissions
Validate extraction & embedding processes
Debug vector database insertions

Nodes used in this workflow

Popular Gmail and Supabase workflows

+5

Smart Email Assistant: Automate Customer Support with AI & Supabase

Intelligent Email Support System with Vector Database Overview This n8n workflow automates email support using AI and vector database technology to provide smart, context-aware responses. It seamlessly integrates email automation and document management, ensuring efficient customer support. 📌 System Components ✉️ Email Support System Email Monitoring & Classification Gmail trigger node monitoring inbox AI-powered email classification Intelligent routing (support vs non-support inquiries) AI Response Generation LangChain agent for response automation OpenAI integration for NLP-driven replies Vector-based knowledge retrieval Automated draft creation in Gmail Vector Database System Supabase vector store for document management OpenAI embeddings for vector conversion Fast and efficient similarity search 📂 Document Management System Google Drive Integration Monitors specific folders for new/updated files Automatic document processing Supports various file formats Document Processing Pipeline Auto file download & text extraction Smart text chunking for better indexing Embedding generation via OpenAI Storage in Supabase vector database 🔄 Workflow Processes 📧 Email Support Flow Monitor Gmail inbox for new emails AI classification of incoming messages Route support emails to AI response generator Perform vector similarity search for knowledge retrieval Generate personalized AI-driven response Create email drafts in Gmail 📁 Document Management Flow Monitor Google Drive for new/updated files Auto-download and process documents Clean up outdated vector entries for updated files Extract and split document text efficiently Generate OpenAI embeddings Store processed data in Supabase vector DB ⚙️ Setup Instructions 1️⃣ Prerequisites Supabase** account & project OpenAI API key** Gmail account** with OAuth2 setup Google Drive API** access n8n installation** 2️⃣ Supabase Database Setup -- Create the vector extension create extension if not exists vector; -- Create the documents table create table documents ( id bigserial primary key, content text, metadata jsonb, embedding vector(1536) ); -- Create an index for similarity search create index on documents using ivfflat (embedding vector_cosine_ops) with (lists = 100); 3️⃣ Google Drive Setup Create & configure two monitored folders: RAG folder for new documents documents Assign correct folder permissions Add folder IDs to the workflow 4️⃣ Document Processing Configuration Set up triggers for file creation and file updates Configure text extraction: Define chunk size & overlap settings Set document metadata processing 🔍 Maintenance & Optimization 📌 Regular Tasks Monitor system performance Update the knowledge base regularly Review AI response quality Optimize vector search parameters Clean up outdated document embeddings ✅ Best Practices Document Organization Maintain structured folders & naming conventions Keep knowledge base content updated System Optimization Track AI classification accuracy Tune response times & chunk sizes Perform regular database maintenance 🛠️ Troubleshooting Email Issues Verify Gmail API credentials Check AI service uptime Monitor classification performance Document Processing Issues Ensure correct file permissions Validate extraction & embedding processes Debug vector database insertions

Build your own Gmail and Supabase integration

Create custom Gmail and Supabase workflows by choosing triggers and actions. Nodes come with global operations and settings, as well as app-specific parameters that can be configured. You can also use the HTTP Request node to query data from any app or service with a REST API.

Gmail supported actions

Add Label
Delete
Get
Get Many
Mark as Read
Mark as Unread
Remove Label
Reply
Send
Send and Wait for Response
Create
Delete
Get
Get Many
Create
Delete
Get
Get Many
Add Label
Delete
Get
Get Many
Remove Label
Reply
Trash
Untrash

Supabase supported actions

Create
Create a new row
Delete
Delete a row
Get
Get a row
Get Many
Get many rows
Update
Update a row

FAQs

  • Can Gmail connect with Supabase?

  • Can I use Gmail’s API with n8n?

  • Can I use Supabase’s API with n8n?

  • Is n8n secure for integrating Gmail and Supabase?

  • How to get started with Gmail and Supabase integration in n8n.io?

Need help setting up your Gmail and Supabase integration?

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Why use n8n to integrate Gmail with Supabase

Build complex workflows, really fast

Build complex workflows, really fast

Handle branching, merging and iteration easily.
Pause your workflow to wait for external events.

Code when you need it, UI when you don't

Simple debugging

Your data is displayed alongside your settings, making edge cases easy to track down.

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Use 1000+ workflow templates available from our core team and our community.

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