Headless Multi Session WhatsApp Gateway

A headless multi-session WhatsApp gateway with multi-device support, easy to set up using Docker.

• Multi-device support
• Multi-session / multiple phone numbers
• Send text messages, images, videos, and documents
• Webhook integration

📌 Also see: wa-multi-session

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⚠️ Prerequisites

• Docker & Docker Compose installed 👉 Install Docker

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Installation & Running

1. Create Application Folder

Create a new folder for your application at ~/app/wa-gateway and navigate into it:

mkdir -p ~/app/wa-gateway
cd ~/app/wa-gateway

2. Create docker-compose.yaml

Use the nano editor to create the file:

nano docker-compose.yaml

Paste the following content into the editor to create docker-compose.yaml

# docker-compose.yaml
services:
  wa-gateway:
    container_name: "wa-gateway"
    restart: unless-stopped
    image: mimamch/wa-gateway:latest
    volumes:
      - ./wa_credentials:/app/wa_credentials
      - ./media:/app/media
    ports:
      - "5001:5001"
    environment:
      - KEY=secret # make your own api key

3. Start the container

Run the following command in the same directory as your docker-compose.yaml:

docker compose up -d

4. Open Browser

Visit this URL to scan the QR code from your WhatsApp device:

http://localhost:5001

Replace localhost with your server's IP or domain if not running locally.

- Login to dashboard with API Key that you set in docker-compose.yaml

- Create your first session

5. Send Your First Message via API

Example to send a text message:

GET
http://localhost:5001/message/send-text?session=SESSION_ID&to=628123456789&text=Hello

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API Reference

All API endpoints remain the same as the NodeJS version. Here's a quick reference:

Create New Session

GET /session/start?session=NEW_SESSION_NAME

or

POST /session/start
{
  "session": "NEW_SESSION_NAME"
}

Send Text Message

POST /message/send-text

Body fields:

Field	Type	Required	Description
session	string	Yes	The session name you created
to	string	Yes	Target phone number (e.g. 628123456789)
text	string	Yes	The text message
is_group	boolean	No	True if target is a group

Send Image

POST /message/send-image

Body includes all of the above plus image_url.

Send Document

POST /message/send-document

Body includes:

• document_url
• document_name

Send Video

POST /message/send-video

Body fields:

Field	Type	Required	Description
session	string	Yes	The session name you created
to	string	Yes	Target phone number (e.g. 628123456789)
text	string	No	Caption for the video (optional)
video_url	string	Yes	URL of the video file
is_group	boolean	No	True if target is a group

Delete Session

GET /session/logout?session=SESSION_NAME

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Webhook Setup

To receive real-time events, set your webhook URL using the environment variable:

WEBHOOK_BASE_URL="http://yourdomain.com/webhook"

Example webhook endpoints:

• Session: POST /webhook/session
• Message: POST /webhook/message

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Access Media Files

Media files are stored inside the ./media directory in the container. You can access them via:

http://localhost:5001/media/FILE_NAME

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Upgrading

To update to the latest version:

cd ~/app/wa-gateway
docker compose pull
docker compose down
docker compose up -d

Documentation

For full documentation, examples, and guides, visit: 👉 https://github.com/mimamch/wa-gateway

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Let me know if you need configuration examples with environment variables (like webhook setup) or a multi-service deployment!

Need Help?

Get in touch with me in person via email 📧 mimamch28@gmail.com