gistfile1.rb

# STEP 1 : http://instagram.com/developer. Login to your account. Then click on Manage Clients, and finally on Register a New Client
# STEP 2 : Fill out the required fields for registering a new client id making sure to set the OAuth redirect_uri field to "http://localhost" (without quotes).
#          The reason you should use localhost is for security. In computer networking localhost is the web address of the computer you are using. So when Instagram redirects to your redirect_uri, all of your sensitive information is passed from Instagram's servers directly to your computer. See wikipedia.org/wiki/Localhost for more details.

# STEP 2 and a HALF : IN your GEMFILE Add :

gem "instagram"

# STEP 3 : Make a file /config/initializers/instagram.rb

require "instagram"

Instagram.configure do |config|
  config.client_id = CLIENT_ID
  config.client_secret = CLIENT_SECRET
end

# GET YOUR F'N CODE TOKEN BY GOING TO THIS IN A BROWSER!
# 1. https://instagram.com/oauth/authorize/?client_id=YOUR_CLIENT_ID&redirect_uri=http://localhost&response_type=code&scope=likes+comments+relationships+basic

# IN YOUR CONSOLE DO THIS :
# 2. Instagram.get_access_token(params[:code], :redirect_uri => "http://localhost") # GET THE ACESS_TOKEN!
# 3. client  = Instagram.client(access_token: ENV['access_token'], client_id: ENV['client_id'], client_secret: ENV['client_secret'], client_ips: '127.0.0.1')

# results = client.tag_recent_media("yoga")
# results.each{|r|client.like_media(r.id)}