Sum all balance transactions

sum_bts.rb

require 'stripe'

# Your platform's secret key
Stripe.api_key = "YOUR-SECRET-KEY"

# Get a timestamp for the beggining of the year
start = DateTime.rfc3339('2017-01-01T00:00:00Z').to_time.to_i

# Retrieve transactions - you could use the Stripe-Account header here to get the transactions on a connected account as well.
transactions = Stripe::BalanceTransaction.list(limit: 100, created: { gte: start })
total = 0

# Iterate through transactions and sum values for each available_on date
transactions.auto_paging_each do |txn|
  total += txn.net
end

# Output the net since the beginning of the year
puts total