wabridge

Python client for WABridge - send WhatsApp messages from Python via a simple REST API bridge. Supports text, images, video, audio, documents — to individuals, groups, and channels.

Prerequisites

Node.js (>= 20.0.0) must be installed on your system. Download it from nodejs.org.

1. Install WABridge globally:

npm install -g wabridge

2. Link WhatsApp (one-time setup):

wabridge

Scan the QR code with WhatsApp (Settings > Linked Devices > Link a Device). Auth is saved to ~/.wabridge/ — you only need to link once.

3. Start the API server:

wabridge start

Or on a custom port:

wabridge start 8080

Install

pip install wabridge

Quick Start

from wabridge import WABridge

wa = WABridge()

# Send to yourself
wa.send("Hello!")

# Send to a contact (phone number with country code)
wa.send("919876543210", "Hello!")

# Send to multiple contacts in parallel
wa.send([
    ("919876543210", "Alert 1"),
    ("919876543211", "Alert 2"),
    ("919876543212", "Alert 3"),
])

Media Messages

wa = WABridge()

# Image to self
wa.send(image="https://example.com/photo.jpg", caption="Check this out")

# Image to a contact
wa.send("919876543210", image="https://example.com/photo.jpg", caption="Hello!")

# Video
wa.send("919876543210", video="https://example.com/video.mp4", caption="Watch this")

# Voice note
wa.send("919876543210", audio="https://example.com/voice.ogg")

# Audio file (not voice note)
wa.send("919876543210", audio="https://example.com/song.mp3", ptt=False)

# Document
wa.send("919876543210", document="https://example.com/report.pdf", mimetype="application/pdf", filename="report.pdf")

Groups

wa = WABridge()

# List all groups
groups = wa.groups()
for g in groups:
    print(f"{g['subject']} - {g['id']}")

# Send text to group
wa.send_group("120363012345@g.us", "Hello group!")

# Send image to group
wa.send_group("120363012345@g.us", image="https://example.com/photo.jpg", caption="Check this")

Channels

wa = WABridge()

# Send text to channel
wa.send_channel("120363098765@newsletter", "Channel update!")

# Send image to channel
wa.send_channel("120363098765@newsletter", image="https://example.com/photo.jpg")

Configuration

# Default - connects to localhost:3000
wa = WABridge()

# Custom port
wa = WABridge(port=8080)

# Custom host and port (e.g. WABridge running on another machine)
wa = WABridge(host="192.168.1.100", port=4000)

# Custom timeout (default 30 seconds)
wa = WABridge(timeout=60.0)

Async Support

import asyncio
from wabridge import AsyncWABridge

async def main():
    async with AsyncWABridge() as wa:
        await wa.send("Hello!")
        await wa.send("919876543210", "Hello!")
        await wa.send("919876543210", image="https://example.com/photo.jpg")
        await wa.send_group("120363012345@g.us", "Hello group!")
        await wa.send_channel("120363098765@newsletter", "Update!")

asyncio.run(main())

Context Manager

# Sync
with WABridge() as wa:
    wa.send("Hello!")

# Async
async with AsyncWABridge() as wa:
    await wa.send("Hello!")

API Reference

WABridge(host="localhost", port=3000, timeout=30.0)

wa.send(...)

Usage	Description
wa.send("Hello!")	Text to self
wa.send("919876543210", "Hello!")	Text to a number
wa.send([("91...", "msg"), ...])	Text to many in parallel
wa.send(image="https://...")	Image to self
wa.send("919876543210", image="https://...", caption="Hi")	Image to a number
wa.send("919876543210", video="https://...")	Video to a number
wa.send("919876543210", audio="https://...")	Voice note to a number
wa.send("919876543210", document="https://...", mimetype="application/pdf")	Document to a number

wa.send_group(group_id, ...)

Usage	Description
wa.send_group("id@g.us", "Hello!")	Text to group
wa.send_group("id@g.us", image="https://...")	Image to group

wa.send_channel(channel_id, ...)

Usage	Description
wa.send_channel("id@newsletter", "Update!")	Text to channel
wa.send_channel("id@newsletter", image="https://...")	Image to channel

Media Keyword Arguments

Kwarg	Type	Description
image	str (URL)	Image URL
video	str (URL)	Video URL
audio	str (URL)	Audio URL
document	str (URL)	Document URL
caption	str	Caption for image/video/document
mimetype	str	MIME type (required for document)
filename	str	File name for document
ptt	bool	True for voice note (default), False for audio file

Phone numbers must include the country code (e.g. 91 for India, 1 for US) followed by the number — digits only, no + or spaces.

Utility Methods

Method	Description
wa.status()	Returns {"status": "open", "user": "91...@s.whatsapp.net"}
wa.is_connected()	Returns True if WhatsApp is connected
wa.groups()	Returns list of groups with id, subject, size, desc
wa.close()	Close the HTTP client

AsyncWABridge(host="localhost", port=3000, timeout=30.0)

Same methods as WABridge, but all are async. Supports async with context manager.

Exceptions

Exception	When
WABridgeError	Base exception for all errors
ConnectionError	WhatsApp is not connected (server returned 500)
ValidationError	Invalid phone number or missing fields (server returned 400)

from wabridge import WABridge, ConnectionError, ValidationError

wa = WABridge()

try:
    wa.send("919876543210", "Hello!")
except ConnectionError:
    print("WhatsApp is not connected. Run: wabridge start")
except ValidationError as e:
    print(f"Bad request: {e.message}")

Use Cases

Trading alerts:

wa = WABridge()
wa.send("BUY NIFTY 24000 CE @ 150")

Send chart image:

wa = WABridge()
wa.send("919876543210", image="https://charts.example.com/nifty.png", caption="NIFTY Chart")

Group notification:

wa = WABridge()
wa.send_group("120363012345@g.us", "Market closed. P&L: +5000")

Server monitoring:

wa = WABridge()
if cpu_usage > 90:
    wa.send("919876543210", f"CPU at {cpu_usage}%")

Broadcast to multiple numbers:

wa = WABridge()
numbers = ["919876543210", "919876543211", "919876543212"]
wa.send([(n, "Server maintenance at 10 PM") for n in numbers])

How It Works

This package is a thin Python wrapper over the WABridge HTTP API. WABridge runs as a local Node.js server that connects to WhatsApp via the Baileys library. This Python client sends HTTP requests to that server using httpx.

Python App  -->  wabridge (Python)  -->  WABridge Server (Node.js)  -->  WhatsApp

Requirements

• Node.js >= 20.0.0 (required for the WABridge server)
• WABridge installed globally (npm install -g wabridge) and running (wabridge start)
• Python >= 3.8

License

MIT