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messenger_bot

0.2.0
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Unofficial Facebook Messenger Platform chatbot client and webhook handler

Retired package: Deprecated
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messenger_bot lib messenger_bot services user_profile.ex
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lib/messenger_bot/services/user_profile.ex 

defmodule MessengerBot.Service.UserProfile do

  @moduledoc """

  Facebook MessengerBot 'UserProfile' API

  """



  alias MessengerBot.Client

  alias MessengerBot.Payload.{UserProfileRequest, UserProfileResponse}

  alias MessengerBot.Config



  @base_url "https://graph.facebook.com/v2.6"

  @user_profile %UserProfileResponse{}



  @doc """

  Fetch user profile from facebook api

  """

  @spec fetch(String.t, UserProfileRequest.t) :: UserProfileResponse.t

  def fetch(page_id, %UserProfileRequest{} = request) do

    token = Config.page_token(page_id)

    url = url_for(request, token)

    case Client.get(url) do

      {:error, _} -> @user_profile

      response -> Poison.decode!(response.body, as: @user_profile, keys: :atoms)

    end

  end



  defp url_for(request, token) do

    "#{@base_url}/#{request.id}?fields=#{request.fields}&access_token=#{token}"

  end

end