bryanjos / hedwig_sms

SMS Adapter for Hedwig Powered by Twilio

HedwigSms

An SMS Hedwig adapter powered by Twilio.

Refer to the Create a Robot Module section for creating a bot.

Configuration

Below is an example configuration

use Mix.Config

config :alfred, Alfred.Robot,
  adapter: Hedwig.Adapters.SMS,
  name: "alfred",
  account_sid: "", #your twilio sid
  auth_token: "", #your twilio auth token
  account_number: "[phone]", # your twilio number
  responders: [
    {Hedwig.Responders.Help, []},
    {Hedwig.Responders.GreatSuccess, []},
    {Hedwig.Responders.ShipIt, []}
  ]

Twilio Callback

Messages are received from Twilio using an HTTP callback. You can use the included Hedwig.Adapters.SMS.Callback module or define one yourself as long as it calls Hedwig.Adapters.SMS.handle_in/2 to send the message to the robot.

Using the included server

To use the included callback with your robot, update your dependencies by including plug and cowboy:

  defp deps do
    [
      {:cowboy, "~> 1.0"},
      {:plug, "~> 1.1"}
    ]
  end

Next, Add cowboy to your list of applications:

  def application do
    [applications: [:logger, :hedwig, :cowboy]]
  end

Next, add Hedwig.Adapters.SMS.Callback to your supervision tree alongside your robot

    children = [
      worker(Alfred.Robot, []),
      worker(Hedwig.Adapters.SMS.Callback, [])
    ]

Optionally, add the following configuration block to your config to set the base_path and/or the port

config :hedwig_sms, Hedwig.Adapters.SMS.Callback,
  base_path: "/mybasepath" # defaults to "/sms",
  port: 3000 # defaults to 4000

Defining your own callback

If you are defining your own callback (for instance in a phoenix app), just make sure to call Hedwig.Adapters.SMS.handle_in/2

    def my_twilio_callback(conn, params) do
        case Hedwig.Adapters.SMS.handle_in(robot_name, params) do
            {:error, reason} ->
                # Handle robot not found
            :ok ->
                # Message sent to robot.
       end
    end