WAservix Python integration

Connect WAservix to your Python app: send WhatsApp messages from your own WhatsApp number, check delivery and receive replies by webhook. Copy the examples, add your key and run.

Requirements

Python 3.8+ and requests. The webhook example uses Flask; any framework works the same way.

pip install requests flask

Add your API key

Create a key under WAservix → Devices → API key (it starts with wpk_). Keep it on your server, in an environment variable or secret store. Never put it in a website, a mobile app or a public repository.

# keep keys out of your code
export WASERVIX_KEY="wpk_your_key"
export WASERVIX_WEBHOOK_SECRET="your_webhook_secret"

Set up the client

Base URL https://tekservix.com/waservix/api. Send the key as Authorization: Bearer wpk_….

import os
import requests

Send a WhatsApp message

Messages are queued and sent one at a time per number, so the answer comes back at once with "status": "in_progress" and a msgId.

r = requests.post(
    'https://tekservix.com/waservix/api/send-message',
    headers={'Authorization': 'Bearer ' + os.environ['WASERVIX_KEY']},
    json={
        'to': '+250788123456',
        'text': 'Hello Aline, your order is ready'
    },
    timeout=30,
)
r.raise_for_status()
print(r.json())

Send a document or image

Use imageUrl, videoUrl, audioUrl or documentUrl with a public https link. Groups work too: put the group JID (…@g.us) in to.

r = requests.post(
    'https://tekservix.com/waservix/api/send-message',
    headers={'Authorization': 'Bearer ' + os.environ['WASERVIX_KEY']},
    json={
        'to': '+250788123456',
        'text': 'Your invoice',
        'documentUrl': 'https://example.com/inv-1042.pdf',
        'fileName': 'Invoice-1042.pdf'
    },
    timeout=30,
)
r.raise_for_status()
print(r.json())

Check message status

status is queued, sent, delivered, read, played or failed. Webhooks tell you without polling.

r = requests.get(
    'https://tekservix.com/waservix/api/messages/58213/info',
    headers={'Authorization': 'Bearer ' + os.environ['WASERVIX_KEY']},
    timeout=30,
)
r.raise_for_status()
print(r.json())

Receive WhatsApp messages by webhook

Set a webhook URL and events for the number under WAservix → Devices. Each request carries X-Webhook-Signature, which equals that device’s webhook secret. Compare it in constant time, answer 2xx quickly and process the message after answering (we retry 3 times).

# pip install flask
import hashlib, hmac, os
from flask import Flask, request, abort

app = Flask(__name__)

@app.post('/webhooks/wapenda')
def wapenda_webhook():
    if not hmac.compare_digest(os.environ['WASERVIX_WEBHOOK_SECRET'], request.headers.get('X-Webhook-Signature', '')):
        abort(401)
    event = request.get_json()
    if event['event'] == 'messages.received':
        m = event['data']['messages']
        print(m['key'].get('cleanedSenderPn'), m.get('messageBody'))
    return '', 200

Errors, limits and retries

Every answer has success; errors add a readable message. 401 means a wrong key, 402 no active plan for this number or phone, 409 the number or phone isn’t connected, 429 too many requests (300 a minute per key): wait for the Retry-After seconds and try again. Retry 5xx and network errors with a back-off, but don’t blindly retry a send that may have worked: check its status first, or you could send twice.

Full list of endpoints and fields: WAservix API reference.

Questions

Is this the official WhatsApp Business API?

No. WAservix links your own number as a companion device, like WhatsApp Web, so there is no Meta approval. Only message people who expect to hear from you: WhatsApp can ban numbers that spam.

Can I call the API from a mobile app or browser?

Don’t. Anyone could read the key from the app or page. Call the API from your server and let your app talk to your server.

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