scratch_11.rb

#!/usr/bin/env ruby

require 'open-uri'
require 'json'
require 'csv'
require 'time'

headers = { 'PRIVATE-TOKEN' => ENV['GL_TOKEN'] }

issues = Enumerator.new do |result|
  page = 1
  data = open("https://gitlab.key-g.com/api/v4/issues?state=closed&scope=all&project_id=google-autocomplete-proxy&per_page=10&page=#{page}", headers).read
  _issues = JSON.load(data)

  while _issues.any?
    _issues.each { |i| result << i }
    page += 1
    data = open("https://gitlab.key-g.com/api/v4/issues?state=closed&scope=all&project_id=google-autocomplete-proxy&per_page=10&page=#{page}", headers)
    _issues = JSON.load(data)
  end
end

CSV(File.new('./issues.csv', 'wb+')) do |csv|
  csv << ["title", "assignee.name", "closed_at", 'created_at', 'url']
  june = Time.parse('2018-07-01 00:00:00 +0300')

  issues
      .to_a
      .each { |data| puts data.inspect }
      .each { |data|
        s = [
            data['title'],
            data['assignees'].map{ |ii| ii['name'] }.join(','),
            data['created_at'],
            (data['closed_at'] ? data['closed_at'] : data['updated_at']),
            data['web_url']
        ]

        csv << s
      }
end