Class: Faraday::HappyEyeballs::Adapter

Inherits:
Adapter
  • Object
show all
Defined in:
lib/faraday/happy_eyeballs/adapter.rb

Constant Summary collapse

NET_HTTP_REQUEST_CLASSES = 
{
  "GET" => Net::HTTP::Get, "POST" => Net::HTTP::Post, "PUT" => Net::HTTP::Put,
  "DELETE" => Net::HTTP::Delete, "PATCH" => Net::HTTP::Patch, "HEAD" => Net::HTTP::Head
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(app = nil, options = {}) ⇒ Adapter

Returns a new instance of Adapter.



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# File 'lib/faraday/happy_eyeballs/adapter.rb', line 14

def initialize(app = nil, options = {})
super(app)
@options = { connection_attempt_delay: 0.25, resolution_delay: 0.05, first_address_family_count: 1,
 connection_timeout: 10, cache_ttl: 300, prefer_ipv6: true, enable_cache: true }.merge(options)
@connection_pool = ConnectionPool.new(@options) if @options[:enable_cache]
@resolver = DualStackResolver.new(@options) end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/faraday/happy_eyeballs/adapter.rb', line 21

def call(env)
  puts "=== HAPPY EYEBALLS ADAPTER CALLED ===" if ENV["DEBUG_HAPPYEYES"] == "true"
  puts "Original URL: #{env[:url]}" if ENV["DEBUG_HAPPYEYES"] == "true"
  uri = env[:url]  # Extract connection details
  original_hostname = uri.hostname
  port = uri.port || (uri.scheme == "https" ? 443 : 80)
  puts "Resolving #{original_hostname}:#{port}" if ENV["DEBUG_HAPPYEYES"] == "true"
  begin
  connection_key = "#{original_hostname}:#{port}"
  successful_address = @connection_pool && @connection_pool.get_connection(connection_key)
  used_cached_address = !successful_address.nil?
  unless successful_address
# Resolve addresses using your DualStackResolver
addresses = @resolver.resolve_dual_stack(original_hostname)
raise AllConnectionsFailed, "No addresses resolved for #{original_hostname}" if addresses.empty?
sorted_addresses = sort_addresses(addresses) # Sort addresses according to preference
successful_address = attempt_connections(sorted_addresses, port)  # Attempt connections with Happy Eyeballs algorithm
@connection_pool.cache_connection(connection_key, successful_address) if @connection_pool end
  begin
make_request_with_address(env, successful_address, port) # Make the actual HTTP request with proper SNI
  rescue Faraday::ConnectionFailed
# Only worth a fresh race if the failure came from a stale cached address.
raise unless used_cached_address
@connection_pool.clear_connection(connection_key)
addresses = @resolver.resolve_dual_stack(original_hostname)
raise AllConnectionsFailed, "No addresses resolved for #{original_hostname}" if addresses.empty?
successful_address = attempt_connections(sort_addresses(addresses), port)
@connection_pool.cache_connection(connection_key, successful_address)
make_request_with_address(env, successful_address, port) end
  rescue AllConnectionsFailed, ConnectionTimeout => e
raise Faraday::ConnectionFailed, e.message
  rescue Timeout::Error
raise Faraday::TimeoutError, "Connection timeout after #{@options[:connection_timeout]}s" end end