noticed_africas_talking.rb

class DeliveryMethods::AfricasTalking < Noticed::DeliveryMethods::Base
  def deliver
    post(url, format)
  end

  def format
    {
      username: credentials.fetch(:username),
      to: recipient.tel.gsub(/\s+/, ''), # recepient phone number
      message: notification.params[:message],
      from: credentials.fetch(:short_code) # Your registered short code or alphanumeric, defaults to AFRICASTKNG.
    }
  end

  def post(url, body)
    HTTP.headers(
      apikey: credentials.fetch(:api_key),
      accept: 'application/json'
    ).post(url, form: body)
  end

  def url
    'https://api.africastalking.com/version1/messaging'
  end

  def credentials
    if (method = options[:credentials])
      notification.send(method)
    else
      Rails.application.credentials.africas_talking
    end
  end

  after_deliver do
    # after deliver callback
  end
end