class FaradayRunscope

Faraday middleware for transforming API endpoint urls and certain urls in JSON payloads to be proxied by Runscope for tracking and debugging purposes.

Constants

CUSTOM_PORT

Attributes

bucket[RW]

transform_paths[RW]

Public Class Methods

new(app, bucket, transform_paths: false) click to toggle source

Calls superclass method

# File lib/paypoint/blue/faraday_runscope.rb, line 6
def initialize(app, bucket, transform_paths: false)
  super(app)
  self.bucket = bucket
  self.transform_paths = Array(transform_paths)
end

Public Instance Methods

call(env) click to toggle source

# File lib/paypoint/blue/faraday_runscope.rb, line 12
def call(env)
  handle_custom_port(env)

  transform_url env.url

  if transform_paths && env.body.respond_to?(:each_with_index)
    transform_paths!(env.body)
  end

  @app.call env
end

Protected Instance Methods

each_pair(enum) { |key, value| ... } click to toggle source

# File lib/paypoint/blue/faraday_runscope.rb, line 60
def each_pair(enum)
  if enum.respond_to?(:each_pair)
    enum.each_pair do |key, value|
      yield key, value
    end
  else
    enum.each_with_index do |value, index|
      yield index, value
    end
  end
end

handle_custom_port(env) click to toggle source

# File lib/paypoint/blue/faraday_runscope.rb, line 28
def handle_custom_port(env)
  return if env.url.port == env.url.default_port
  env.request_headers[CUSTOM_PORT] = env.url.port.to_s
  env.url.port = env.url.default_port
end

runscope_host(host) click to toggle source

# File lib/paypoint/blue/faraday_runscope.rb, line 45
def runscope_host(host)
  "#{host.gsub("-", "--").tr(".", "-")}-#{bucket}.runscope.net"
end

transform_path?(path) click to toggle source

# File lib/paypoint/blue/faraday_runscope.rb, line 72
def transform_path?(path)
  transform_paths.any? do |path_pattern|
    path_pattern.is_a?(Regexp) ? path =~ path_pattern : path == path_pattern
  end
end

transform_paths!(enum, path = nil) click to toggle source

# File lib/paypoint/blue/faraday_runscope.rb, line 49
def transform_paths!(enum, path = nil)
  each_pair(enum) do |key, value|
    key_path = path ? "#{path}.#{key}" : key.to_s
    if value.respond_to?(:each_with_index)
      transform_paths!(value, key_path)
    elsif transform_path?(key_path)
      enum[key] = transform_url(value)
    end
  end
end

transform_url(url) click to toggle source

# File lib/paypoint/blue/faraday_runscope.rb, line 34
def transform_url(url)
  if url.respond_to?(:host=)
    url.host = runscope_host(url.host)
  elsif url.is_a?(String)
    uri = URI.parse(url)
    uri.host = runscope_host(uri.host)
    return uri.to_s
  end
  url
end