fix: Handle rails params in Any (#13)

* Handle rails params in Any

* chore: test for rails strong parameters coercion

Gemfile.lock

@@ -7,13 +7,44 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
+    actionpack (5.2.3)
+      actionview (= 5.2.3)
+      activesupport (= 5.2.3)
+      rack (~> 2.0)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (5.2.3)
+      activesupport (= 5.2.3)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activesupport (5.2.3)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
     ast (2.4.0)
+    builder (3.2.3)
     byebug (11.0.1)
     coderay (1.1.2)
+    concurrent-ruby (1.1.5)
+    crass (1.0.4)
     diff-lcs (1.3)
+    erubi (1.8.0)
     graphql (1.9.6)
+    i18n (1.6.0)
+      concurrent-ruby (~> 1.0)
     jaro_winkler (1.5.3)
+    loofah (2.2.3)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
     method_source (0.9.2)
+    mini_portile2 (2.4.0)
+    minitest (5.11.3)
+    nokogiri (1.10.3)
+      mini_portile2 (~> 2.4.0)
     parallel (1.17.0)
     parser (2.6.3.0)
       ast (~> 2.4.0)
@@ -24,6 +55,13 @@ GEM
       byebug (~> 11.0)
       pry (~> 0.10)
     rack (2.0.7)
+    rack-test (1.1.0)
+      rack (>= 1.0, < 3)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.0.4)
+      loofah (~> 2.2, >= 2.2.2)
     rainbow (3.0.0)
     rake (12.3.2)
     rspec (3.8.0)
@@ -49,12 +87,16 @@ GEM
     rubocop-rspec (1.33.0)
       rubocop (>= 0.60.0)
     ruby-progressbar (1.10.1)
+    thread_safe (0.3.6)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
     unicode-display_width (1.6.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  actionpack
   apollo-federation!
   pry-byebug
   rack

apollo-federation.gemspec

@@ -28,6 +28,7 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency 'graphql'
 
+  spec.add_development_dependency 'actionpack'
   spec.add_development_dependency 'pry-byebug'
   spec.add_development_dependency 'rack'
   spec.add_development_dependency 'rake'

lib/apollo-federation/any.rb

@@ -9,8 +9,10 @@ class Any < GraphQL::Schema::Scalar
     def self.coerce_input(value, _ctx)
       # TODO: Should we convert it to a Mash-like object?
       result = {}
-      value.each_key do |key|
-        result[key.to_sym] = value[key]
+
+      # `value` can be an ActionController::Parameters instance
+      value.each_pair do |key, val|
+        result[key.to_sym] = val
       end
 
       result

spec/apollo-federation/any_spec.rb

@@ -2,11 +2,21 @@
 
 require 'spec_helper'
 require 'apollo-federation/any'
+require 'action_controller'
 
 RSpec.describe ApolloFederation::Any do
   it 'converts the keys to symbols' do
     expect(
       described_class.coerce_input({ 'one' => 1, 'two' => 2, '__typename' => 'Thing' }, nil),
     ).to eql(one: 1, two: 2, __typename: 'Thing')
   end
+
+  it 'converts ActionController::Parameters' do
+    params = ActionController::Parameters.new(
+      'one' => 1, 'two' => 2, '__typename' => 'Thing',
+    )
+    expect(
+      described_class.coerce_input(params, nil),
+    ).to eql(one: 1, two: 2, __typename: 'Thing')
+  end
 end