QuePasa

A (micro) web-application to make web-based WhatsApp bots easy to write.

Built on the library go-whatsapp by Rhymen.

Implemented features:

• Register a number with WhatsApp
• Verify a number with a QR code
• Persistence of account data and keys
• Exposes HTTP endpoints for:
  • sending messages
  • receiving messages

WARNING: This application has not been audited. It should not be regarded as secure, use at your own risk.

This is a third-party effort, and is NOT in any affiliated with WhatsApp.

Why?

When you need to communicate over WhatsApp from a different service, for example, a help desk or other web-app, QuePasa provides a simple HTTP API to do so.

QuePasa stores keys and WhatsApp account data in a postgres database. It does not come with HTTPS out of the box. Your QuePasa API tokens essentially give full access to your WhatsApp account (to the extent that QuePasa has implemented WhatsApp features). Use with caution.

Usage

Prerequisites

For local development

• docker
• golang
• postgresql

Run using Docker

• Add info about database migrations

make docker_build
# edit docker-compose.yml.sample to your hearts content
docker-compose up

HTTP API

1. Use the Accept: application/json header
2. TOKEN should be treated like a password.

Get bot info

A simple method for testing your bot's auth token. Requires no parameters. Returns basic information about the bot.

request

GET /bot/<TOKEN>/

response

{
    "id": "129f1757-e706-452e-aa1c-4994a95e1092",
    "number": "+15555555552",
    "user_id": "845ae4d0-f2c3-5342-91a2-5b45cb8db57c",
    "token": "8129c0b4-0b96-4486-84fc-c3dd7b03f846",
    "is_verified": true,
    "created_at": "2018-11-02T11:36:24.273Z",
    "updated_at": "2018-11-02T11:36:24.273Z"
}

Sending

request

POST /bot/<TOKEN>/send

{
  "recipient": "+15555555552",
  "messsage": "Hello World!"
}

response

{
  "result": {
    "recipient": "+15555555551",
    "source": "+15555555552",
    "status": "sent",
    "timestamp": "1543420505142"
  }
}

Receive

The "timestamp" query parameter is optional. A maximum of 40 messages per conversation will be returned.

request

GET /bot/<TOKEN>/receive?timestamp=1541265073783

response

{
  "messages": [
    {
      "source": "+15555555551",
      "timestamp": "1541265073894",
      "message": {
        "body": "Hello World!",
        "profileKey": "XXTXQ=="
      }
    }
  ],
  "bot": {
    "id": "129f1757-e706-452e-aa1c-4994a95e1092",
    "number": "+15555555552",
    "user_id": "845ae4d0-f2c3-5342-91a2-5b45cb8db57c",
    "token": "8129c0b4-0b96-4486-84fc-c3dd7b03f846",
    "is_verified": true,
    "created_at": "2018-11-02T11:36:24.273Z",
    "updated_at": "2018-11-02T11:36:24.273Z"
  }
}

License

QuePasa is a free software project licensed under the GNU Affero General Public License v3.0 (GNU AGPLv3) by The Center for Digital Resilience.