Is it possible to authenticate on Instagram API by curl or in the application backend?

Question

After Instagram updated their API on June 1, I couldn't get the access token without logging in to Instagram account.

Is it possible to skip the website authentication and do it by curl or in my application backend?

Answer 1

I ended up by using mechanize gem for Ruby

I made self method in InstagramPage class:

def self.instagram_client
  return @instagram_client if @instagram_client.present? &&
         @instagram_client.access_token.present?

  # Logging in to Instagram
  url = Instagram.authorize_url(redirect_uri: ENV['INSTAGRAM_REDIRECT_URL'], 
                                response_type: 'token')
  agent = Mechanize.new
  agent.get(url)
  agent.page.forms[0]['username'] = ENV['INSTAGRAM_USERNAME']
  agent.page.forms[0]['password'] = ENV['INSTAGRAM_PASSWORD']
  agent.page.forms[0].submit

  # Retrieving access_token from url and setting it to Instagram client
  access_token = agent.page.uri.to_s.split('=')[-1]
  @instagram_client = Instagram.client(access_token: access_token)
end

Now I able to call client by running InstagramPage.instagram_client