Merge branch 'release/3.0.2'

* release/3.0.2:
  3.0.2
  Removed Faraday dependency, fixes issue with infinite retries, upgrade to use 2.7.4.

.ruby-version

@@ -1 +1 @@
-2.6.5
+2.7.4

.travis.yml

@@ -3,5 +3,5 @@ sudo: false
 language: ruby
 cache: bundler
 rvm:
-  - 2.6.3
-before_install: gem install bundler -v 1.17.3
+  - 2.7.4
+before_install: gem install bundler -v 2.2.15

Gemfile.lock

@@ -1,10 +1,7 @@
 PATH
   remote: .
   specs:
-    emailable (3.0.0)
-      faraday
-      faraday_middleware
-      net-http-persistent
+    emailable (3.0.2)
 
 GEM
   remote: https://rubygems.org/
@@ -22,14 +19,6 @@ GEM
     builder (3.2.3)
     coderay (1.1.2)
     concurrent-ruby (1.1.7)
-    connection_pool (2.2.3)
-    faraday (1.3.0)
-      faraday-net_http (~> 1.0)
-      multipart-post (>= 1.2, < 3)
-      ruby2_keywords
-    faraday-net_http (1.0.1)
-    faraday_middleware (1.0.0)
-      faraday (~> 1.0)
     i18n (1.8.5)
       concurrent-ruby (~> 1.0)
     method_source (0.9.2)
@@ -39,15 +28,11 @@ GEM
       builder
       minitest (>= 5.0)
       ruby-progressbar
-    multipart-post (2.1.1)
-    net-http-persistent (4.0.1)
-      connection_pool (~> 2.2)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     rake (13.0.1)
     ruby-progressbar (1.10.1)
-    ruby2_keywords (0.0.4)
     thread_safe (0.3.6)
     tzinfo (1.2.8)
       thread_safe (~> 0.1)
@@ -67,4 +52,4 @@ DEPENDENCIES
   rake (~> 13.0)
 
 BUNDLED WITH
-   1.17.3
+   2.1.4

LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2019 Emailable. https://emailable.com
+Copyright (c) 2021 Emailable. https://emailable.com
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

emailable.gemspec

@@ -27,9 +27,6 @@ Gem::Specification.new do |s|
   end
   s.require_paths = ['lib']
 
-  s.add_dependency 'faraday'
-  s.add_dependency 'faraday_middleware'
-  s.add_dependency 'net-http-persistent'
   s.add_development_dependency 'bundler'
   s.add_development_dependency 'rake', '~> 13.0'
   s.add_development_dependency 'pry'

lib/emailable.rb

@@ -1,7 +1,6 @@
-require 'faraday'
-require 'faraday_middleware'
 require 'emailable/version'
 require 'emailable/client'
+require 'emailable/response'
 require 'emailable/batch'
 require 'emailable/resources/api_resource'
 require 'emailable/resources/account'
@@ -14,9 +13,13 @@
 
 module Emailable
   @max_network_retries = 1
+  @open_timeout = 30
+  @read_timeout = 60
+  @write_timeout = 30
 
   class << self
-    attr_accessor :api_key, :max_network_retries
+    attr_accessor :api_key, :max_network_retries, :open_timeout, :read_timeout,
+      :write_timeout
   end
 
   module_function

lib/emailable/batch.rb

@@ -4,15 +4,19 @@ class Batch
 
     def initialize(id_or_emails, callback: nil)
       if id_or_emails.is_a?(Array)
+        @id = nil
         @emails = id_or_emails
         @callback = callback
       elsif id_or_emails.is_a?(String)
         @id = id_or_emails
+        @emails = nil
+        @callback = nil
       else
         raise ArgumentError, 'expected an array of emails or batch id'
       end
 
       @client = Emailable::Client.new
+      @status = nil
     end
 
     def verify

lib/emailable/client.rb

@@ -2,27 +2,30 @@ module Emailable
   class Client
 
     def initialize
-      @client = Faraday.new('https://api.emailable.com/v1') do |f|
-        f.request :url_encoded
-        f.response :json, content_type: /\bjson$/
-        f.adapter :net_http_persistent
-      end
+      @base_url = 'https://api.emailable.com/v1'
+      @connection = create_connection(URI(@base_url))
     end
 
-    def request(method, endpoint, opts = {})
+    def request(method, endpoint, params = {})
       begin
-        tries ||= 0
+        tries ||= 3
 
-        @client.params[:api_key] = Emailable.api_key
+        uri = URI("#{@base_url}/#{endpoint}")
+        params[:api_key] = Emailable.api_key
 
-        response =
+        http_response =
           if method == :get
-            @client.get(endpoint, opts)
+            uri.query = URI.encode_www_form(params)
+            @connection.get(uri)
           elsif method == :post
-            @client.post(endpoint, opts)
+            request = Net::HTTP::Post.new(uri, 'Content-Type': 'application/json')
+            request.body = params.to_json
+            @connection.request(request)
           end
+
+        response = Response.new(http_response)
       rescue => e
-        retry if self.class.should_retry?(e, tries)
+        retry if (tries -= 1) > 0 && self.class.should_retry?(e, tries)
 
         raise e
       end
@@ -48,23 +51,59 @@ def request(method, endpoint, opts = {})
       raise error_map[status.to_s].new(error_attributes)
     end
 
+    private
+
+    def create_connection(uri)
+      connection = Net::HTTP.new(uri.host, uri.port)
+
+      # Time in seconds within which Net::HTTP will try to reuse an already
+      # open connection when issuing a new operation. Outside this window, Ruby
+      # will transparently close and re-open the connection without trying to
+      # reuse it.
+      #
+      # Ruby's default of 2 seconds is almost certainly too short. Here I've
+      # reused Go's default for `DefaultTransport`.
+      connection.keep_alive_timeout = 30
+
+      connection.open_timeout = Emailable.open_timeout
+      connection.read_timeout = Emailable.read_timeout
+      if connection.respond_to?(:write_timeout=)
+        connection.write_timeout = Emailable.write_timeout
+      end
+      connection.use_ssl = uri.scheme == "https"
+
+      connection
+    end
+
     def self.should_retry?(error, num_retries)
       return false if num_retries >= Emailable.max_network_retries
 
-      # Retry on timeout-related problems (either on open or read).
-      return true if error.is_a?(Faraday::TimeoutError)
+      case error
+      when Net::OpenTimeout, Net::ReadTimeout
+        # Retry on timeout-related problems (either on open or read).
+        true
+      when EOFError, Errno::ECONNREFUSED, Errno::ECONNRESET,
+        Errno::EHOSTUNREACH, Errno::ETIMEDOUT, SocketError
+        # Destination refused the connection, the connection was reset, or a
+        # variety of other connection failures. This could occur from a single
+        # saturated server, so retry in case it's intermittent.
+        true
+      when Net::HTTPError
+        # 409 Conflict
+        return true if error.http_status == 409
 
-      # Destination refused the connection, the connection was reset, or a
-      # variety of other connection failures. This could occur from a single
-      # saturated server, so retry in case it's intermittent.
-      return true if error.is_a?(Faraday::ConnectionFailed)
+        # 429 Too Many Requests
+        return true if error.http_status == 429
 
-      if error.is_a?(Faraday::ClientError) && error.response
-        # 409 conflict
-        return true if error.response[:status] == 409
-      end
+        # 500 Internal Server Error
+        return true if error.http_status == 500
 
-      false
+        # 503 Service Unavailable
+        error.http_status == 503
+      else
+        false
+      end
     end
+
   end
 end

lib/emailable/email_validator.rb

@@ -38,7 +38,7 @@ def validate_each(record, attribute, value)
 
     api_options = { timeout: timeout, smtp: smtp }
     api_options[:accept_all] = true unless accept_all
-    ev = Emailable.verify(value, api_options)
+    ev = Emailable.verify(value, **api_options)
 
     result_accessor = "#{attribute}_verification_result"
     if record.respond_to?(result_accessor)

lib/emailable/response.rb

@@ -0,0 +1,12 @@
+module Emailable
+  class Response
+
+    attr_accessor :status, :body
+
+    def initialize(response)
+      @status = response.code.to_i
+      @body = JSON.parse(response.body)
+    end
+
+  end
+end

lib/emailable/version.rb

@@ -1,3 +1,3 @@
 module Emailable
-  VERSION = '3.0.1'
+  VERSION = '3.0.2'
 end