Before-filter for all POST requests in Sinatra?

Question

Is there a way to create a "before" filter to capture and pre-process all POST requests in Sinatra?

Answer 1

One way of doing this would be to create a custom condition to use in the filter:

set(:method) do |method|
  method = method.to_s.upcase
  condition { request.request_method == method }
end

before :method => :post do
  puts "pre-process POST"
end