Get payment history of specific client from harvest

generate_payment_report.rb

require 'harvested'
harvest = Harvest.hardy_client(subdomain: 'YOUR_SUBDOMAIN', username: 'YOUR_USERNAME_OR_EMAIL', password: 'YOUR_PASSWORD')
specific_client = harvest.clients.all.select{|c| c.name == 'specific_client'}.first
all_invoices = harvest.invoices.all
invoices = all_invoices.select{|i| i.client_id = specific_client.id}
jaged_payments = invoices.collect{|i| harvest.invoice_payments.all(i) } # call takes a second. grab a cup of tea. and/or add some logging.
all_payments = jaged_payments.flatten

require 'active_support/all'
#csv_string = CSV.generate do |csv|
CSV.open("harvest_payment_report_all.csv", "wb") do |csv|
	csv << ["Payment Date", "Invoice Payment Was Applied to", "Payment Amount", "Currency Symbol", "Currency","Notes"]
	all_payments.each{|p| csv << [p.paid_at.to_date.strftime("%m/%d/%Y"), invoices.select{|i| i.id.to_i == p.invoice_id.to_i }.first.number.to_i, p.amount, "$", "United States Dollars - USD", p.notes.gsub("\n", " ") ]}
end

shell_comands_to_run

gem install specific_install
gem specific_install zmoazeni/harvested
gem install rails # may work with just activesupport but life is just so much easier if you can call to_datetime with a string so you need active support
ruby generate_payment_report.rb  # or use run the commands in the console with pry or irb