Recursive ruby script to gather ORCIDs from candidate researchers/taxonomists in OpenAlex

open_alex_taxonomists_with_orcid.rb

#!/usr/bin/env ruby
# encoding: utf-8

require 'csv'
require 'rest_client'
require 'json'

BASE_URL = "https://api.openalex.org/works?filter=concepts.id:C58642233,has_orcid:true,publication_year:2023&per_page=50&page="

def get_data(page:)
   CSV.open("open_alex.csv", 'ab') do |csv|
      response = RestClient.get(BASE_URL + page.to_s)
      data = JSON.parse(response, symbolize_names: true)
      count = data[:meta][:count].to_i
      per_page = data[:meta][:per_page].to_i

      data[:results].each do |result|
         title = result[:title]
         next if title.nil?
         if title.downcase.include?("species") || title.downcase.include?("revision")
            result[:authorships].map{|a| a[:author][:orcid] }.compact.each do |orcid|
               csv << [orcid.split("/").last]
            end
         end
      end
      if per_page.to_i*page.to_i <= count.to_i
         get_data(page: page+1)
      else
         return
      end
   end
end

get_data(page: 1)