WhatsApp

A ruby interface to WhatsApp Enterprise API.

Installation

Add this line to your application's Gemfile:

gem "whatsapp"

Or manualy install

gem install whatsapp

then require it when there's a need to use it

require "whatsapp"

Usage

Setting up a WhatsApp Business API Client

For the gem to be useful you need a WhatsApp Business account from Facebook. You can get it here: https://developers.facebook.com/docs/whatsapp/getting-started

That link also has the documentation for the Whatsapp api, which this gem aims to encapsulate. After that you should have to containers running, the whatsapp-core and whatsapp-web

Configuration

Before you can send messages there's some Configuration to be done. Set the base path, username and password for the whatsapp-web container

Whats.configure do |config|
  config.base_path = "https://example.test"
  config.user = "admin"
  config.password = "secret password"
end

Create an instance of the API client, which is going to be used from now on to interact with whatsapp

whats = Whats::Api.new

Check Contacts

Take a look here (WhatsApp Check Contacts doc) for more information.

whats.check_contacts(["+5511942424242"])

# output:
{
  "contacts" => [
    {
      "input" => "+5511942424242",
      "status" => "valid",
      "wa_id" => "5511942424242"
    }
  ]
}

Send Message

Take a look here (WhatsApp Send Message doc) for more information.

The first parameter is the WhatsApp username!

whats.send_message("5511942424242", "Message goes here.")

# output:
{
  "messages" => [{
    "id" => "BAEC4D1D7549842627"
  }]
}

Send HSM (templated) messages

Send a kind of message that will not allow the receiver to flag it as spam since it's template was pre approved by WhatsApp, find more informations here

whats.send_hsm_message(
  "+1234567890",
  "cdb2df51_9816_c754_c5a4_64cdabdcad3e",
  "purchase_with_credit_card",
  "en",
  [ # ordered list of replacements that will happen at the template
    {default: "$10"},
    {default: "300"},
  ]
)

# output:

{
  "messages": [{
    "id": "gBEGkYiEB1VXAglK1ZEqA1YKPrU"
  }]
}

Tests

Running tests

rspec

Debugging specs

You can print all stubs using the environment variable PRINT_STUBS=true like this:

PRINT_STUBS=true rspec

All stubs can be seen in the debugging session from the wiki: https://github.com/getninjas/whatsapp/wiki/Debugging