# PhoenixFacebookMessenger
[](https://travis-ci.org/oarrabi/phoenix-facebook-messenger)
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[](http://hexdocs.pm/phoenix-facebook-messenger/)
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[](http://inch-ci.org/github/oarrabi/phoenix-facebook-messenger)
Phoenix Facebook Messenger is a library that easy the creation of facebook messenger bots.
## Installation
```
def deps do
[{:phoenix_facebook_messenger, "~> 0.2.0"}]
end
```
## Requirements
- a Phoenix App with phoenix `1.1` and up
## Usage
You need to have a working phoenix app to use `phoenix_facebook_messenger`.
To create an echo back bot, do the following:
Create a new controller `web/controller/test_controller.ex`
```
defmodule TestController do
use FacebookMessenger.Phoenix.Controller
def message_received(msg) do
text = FacebookMessenger.Response.message_texts(msg) |> hd
sender = FacebookMessenger.Response.message_senders(msg) |> hd
FacebookMessenger.Sender.send(sender, text)
end
end
```
Add the required routes in `web/router.ex`
```
defmodule YourApp.Router do
use YourApp.Web, :router
# Add these two lines
use FacebookMessenger.Phoenix.Router
facebook_routes "/api/webhook", TestController
end
```
This defines a webhook endpoint at:
`http://your-app-url/api/webhook`
Go to your `config/config.exs` and add the required configurations
```
config :facebook_messenger,
facebook_page_token: "Your facebook page token",
challenge_verification_token: "the challenge verify token"
```
To get the `facebook_page_token` and `challenge_verification_token` follow the instructions [here ](https://developers.facebook.com/docs/messenger-platform/quickstart)
For the webhook endpoint use `http://your-app-url/api/webhook`
## Sample
A sample facebook chat echo bot can be found [here](https://github.com/oarrabi/elixir-echo-bot).