Allow to specify custom mutations

Author: mcelicalderon

.rubocop.yml

@@ -5,14 +5,17 @@ Rails:
   Enabled: true
 
 AllCops:
-  TargetRubyVersion: 2.3
+  TargetRubyVersion: 2.2
   DisplayCopNames: true
   Exclude:
     - bin/**/*
     - db/**/*
     - vendor/**/*
     - tmp/**/*
 
+Rails/HttpPositionalArguments:
+  Enabled: false
+
 Rails/HasAndBelongsToMany:
   Enabled: false
 

Gemfile

@@ -1,5 +1,3 @@
 source 'https://rubygems.org'
 
 gemspec
-
-gem 'listen'

app/controllers/graphql_devise/graphql_controller.rb

@@ -26,6 +26,7 @@ def execute_params(item)
         variables:      ensure_hash(item[:variables]),
         context:        {
           current_resource: @resource,
+          token:            @token,
           controller:       self,
           resource_class:   resource_class
         }

app/graphql/graphql_devise/mutations/base.rb

@@ -8,11 +8,11 @@ def single_error_object(error)
       end
 
       def request
-        context[:controller].request
+        controller.request
       end
 
       def response
-        context[:controller].response
+        controller.response
       end
 
       def controller
@@ -26,6 +26,10 @@ def resource_class
       def current_resource
         context[:current_resource]
       end
+
+      def token
+        context[:token]
+      end
     end
   end
 end

app/graphql/graphql_devise/mutations/login.rb

@@ -4,9 +4,8 @@ class Login < Base
       argument :email,    String, required: true
       argument :password, String, required: true
 
-      field :authenticable, GraphqlDevise::Types::AuthenticableType, null: true
-      field :success,       Boolean,                                 null: false
-      field :errors,        [String],                                null: false
+      field :success, Boolean,  null: false
+      field :errors,  [String], null: false
 
       def resolve(email:, password:)
         resource = resource_class.find_by(email: email)

app/graphql/graphql_devise/mutations/logout.rb

@@ -0,0 +1,23 @@
+module GraphqlDevise
+  module Mutations
+    class Logout < Base
+      field :success, Boolean,  null: false
+      field :errors,  [String], null: false
+
+      def resolve
+        client = token.client if token.client
+
+        if current_user && token.client && current_user.tokens[client]
+          user.tokens.delete(client)
+          user.save!
+
+          yield user if block_given?
+
+          { success: true, errors: [] }
+        else
+          { success: false, errors: [I18n.t('graphql_devise.user_not_found')] }
+        end
+      end
+    end
+  end
+end

app/graphql/graphql_devise/types/mutation_type.rb

@@ -1,7 +1,6 @@
 module GraphqlDevise
   module Types
     class MutationType < GraphQL::Schema::Object
-      field :login, mutation: GraphqlDevise::Mutations::Login
     end
   end
 end

config/locales/en.yml

@@ -1,5 +1,6 @@
 en:
   graphql_devise:
+    user_not_found: "User was not found or was not logged in."
     sessions:
       bad_credentials: "Invalid login credentials. Please try again."
       not_confirmed: "A confirmation email was sent to your account at '%{email}'. You must follow the instructions in the email before your account can be activated"

graphql_devise.gemspec

@@ -35,7 +35,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'pry'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec-rails'
-  spec.add_development_dependency 'rubocop'
+  spec.add_development_dependency 'rubocop', '0.68.1'
   spec.add_development_dependency 'rubocop-performance'
   spec.add_development_dependency 'rubocop-rspec'
   spec.add_development_dependency 'sqlite3', '~> 1.3.6'

lib/graphql_devise.rb

@@ -3,6 +3,7 @@
 require 'devise_token_auth'
 require 'graphql'
 require 'graphql_devise/version'
+require 'graphql_devise/util/class_getter'
 
 module GraphqlDevise
   class Error < StandardError; end