facebook_ad.rb

require 'facebookbusiness'
require 'awesome_print'

access_token = ''
ad_account_id = ''
app_secret = ''
page_id = ''
app_id = ''

FacebookAds.configure do |config|
  config.access_token = access_token
  config.app_secret = app_secret
end

ap ad_account = FacebookAds::AdAccount.get(ad_account_id)
ap ad_account.name

ad_account.campaigns(fields: 'name').each do |campaign|
  ap campaign
end

puts '==========================='
ap campaign = ad_account.campaigns.create({
  name: "My First campaign",
  objective: "CONVERSIONS",
  status: 'PAUSED',
  special_ad_categories: []
})

puts '==========================='

ap adset = ad_account.adsets.create({
  name: 'LifetimeBudgetSet from ruby son',
  lifetime_budget: 100000,
  optimization_goal: 'POST_ENGAGEMENT',
  billing_event: 'IMPRESSIONS',
  bid_amount: 1500,
  targeting: {"geo_locations":{"countries":["US"]}},
  end_time: '2022-02-4T00:00:00-0800',
  status: 'PAUSED',
  campaign_id: campaign.id # campaign.id here will return {result=create-campaign:$.id}
})