Curated

(5/5)

Compose reply draft in Gmail with OpenAI Assistant

Reply draft with OpenAI Assistant This workflow automatically transfers content of incoming email messages with specific labels into OpenAI Assitant and returns reply draft. After draft is composed, trigger label is deleted from the thread. Please remember to configure your OpenAI Assistant first.

Integrations Used (4)

Workflow Structure (13 nodes)

100%

Schedule Trigger

Schedule trigger (1 min)

Gmail

Get threads with specific labels

Split In Batches

Loop over threads

Gmail

Get single message content

Langchain.open Ai

Ask OpenAI Assistant

Set

Map fields for further processing

Markdown

Convert response to HTML

Set

Build email raw

Code

Convert raw to base64

Http Request

Add email draft to thread

Gmail

Remove AI label from email

Gmail

Get thread messages

Limit

Return last message in thread

Node Types:

code

http

default

trigger

transform

logic

Requires credentials

Prerequisites

Required Credentials (2)

Gmail

Used by: Add email draft to thread, Remove AI label from email +3 more

Docs

OpenAI

Used by: Ask OpenAI Assistant

Docs

Complexity

Advanced

Expert level. Custom code, complex logic, many integrations.

Setup time: ~45 min

Score: 67/100

Custom Code

Loops

5 Integrations

When to Use This Workflow

Streamline Team Communication

Automatically route notifications and updates to the right channels and people.

Reduce information overload while keeping everyone informed.

Email Automation

Automate email responses, forwarding, or organization based on rules.

Handle routine email tasks automatically and focus on what matters.

Scheduled Operations

Run automated tasks at specific times - daily reports, weekly cleanups, monthly backups.

Set it and forget it - reliable automation that runs on your schedule.

workflow.json

{
  "nodes": [
    {
      "id": "a99b3164-fe36-4dde-9525-110c1ae08afb",
      "name": "Convert raw to base64",
      "type": "n8n-nodes-base.code",
      "position": [
        3320,
        580
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "const encoded = Buffer.from($json.raw).toString('base64');\n\nreturn { encoded };"
      },
      "typeVersion": 2
    },
    {
      "id": "f0f731bd-7b2f-4c39-bc06-42fd57bc4ae8",
      "name": "Add email draft to thread",
      "type": "n8n-nodes-base.httpRequest",
...