hello.rb

# --
# http://192.168.0.102:4567/
# http://192.168.0.105:4567/

require 'sinatra'
require 'instagram'
require 'sinatra/base'

# Configuracoes Instagram
#   scope permissoes necessarias

# MyApp classe principal da aplicacao
class MyApp < Sinatra::Base
  # coding: utf-8

  set :bind, '0.0.0.0'

  enable :sessions

  CALLBACK_URL = 'http://192.168.0.105:4567/oauth/callback'.freeze

  Instagram.configure do |config|
    config.client_id = 'c7dceb3cadb242fc86c8acf894e444e2'
    config.client_secret = '99a27b9b9f3346d9b408f462e1d5ca7c'
    config.scope = 'basic public_content'
    # For secured endpoints only
    # config.client_ips = '<Comma separated list of IPs>'
  end

  get '/' do
    erb :index
  end

  get '/oauth/connect' do
    redirect Instagram.authorize_url(redirect_uri: CALLBACK_URL)
  end

  get '/oauth/callback' do
    if params[:code]
      par_code = params[:code]
      response = Instagram.get_access_token(par_code, redirect_uri: CALLBACK_URL)
      session[:access_token] = response.access_token
      redirect '/home'
    elsif params[:error]
      @titulo = 'Instagram API'
      @msg_erro = params[:error_description]
      erb :erro_login
    else
      redirect Instagram.authorize_url(redirect_uri: CALLBACK_URL)
    end
  end

  get '/home' do
    if session[:access_token]
      client = Instagram.client(access_token: session[:access_token])
      user = client.user
      @titulo = 'Instagram API'
      @subtitulo = 'Bem vindo ' + user.full_name
      erb :home
    else
      redirect '/'
    end
  end

  get '/user_recent_media' do
    if session[:access_token]
      @titulo = 'Instagram API'
      erb :fotos
    else
      redirect '/'
    end
  end

  get '/logout' do
    @titulo = 'Instagram API'
    session[:access_token] = nil
    redirect '/'
  end

  run!
end