API stubbing for frontend testing: webserver method

webserver.rb

require 'ap'
require 'json'
require 'webrick'

# API stubbing for frontend testing: webserver method
# Thorsten Bosbach 03/2018

if ARGV.count != 3
  ap "Usage: ruby webserver.rb port request-path file"
  # ruby webserver.rb 7080 /notification-center/api/nc profiles_vomp_mixed_aggregated.json
  return
end

puts "port: #{ARGV[0]}\n"
puts "path: #{ARGV[1]}\n"
puts "file: #{ARGV[2]}\n"

server = WEBrick::HTTPServer.new(
  :Port => ARGV[0],
)

# will respond to this and all paths below. e.g. set to /foo, will also answer for /foo/bar
server.mount_proc "#{ARGV[1]}" do |req, res|
  ap req.path
  file = File.expand_path("../#{ARGV[2]}", __FILE__)
  http_body = File.read(file)
  JSON.parse(http_body) # 'validation'
  res.body = http_body
end

server.start