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messenger_bot

0.9.1
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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 ->

        attrs = :jiffy.decode(response.body, [:return_maps])

        %UserProfileResponse{

          first_name: attrs["first_name"],

          last_name: attrs["last_name"],

          profile_pic: attrs["profile_pic"],

          locale: attrs["locale"],

          timezone: attrs["timezone"],

          gender: attrs["gender"],

          last_ad_referral: attrs["last_ad_referral"]

        }

    end

  end



  defp url_for(request, token) do

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

  end

end