WIP

Author: djordjelacmanovic

lib/generators/infinum_json_api_setup/templates/config/locales/json_api.en.yml

@@ -4,6 +4,7 @@ en:
       bad_request:
         title: Bad Request
         detail: Bad request
+        invalid_locale: Invalid locale
       not_found:
         title: Not found
         detail: Resource not found

lib/infinum_json_api_setup.rb

@@ -14,6 +14,7 @@
 require 'infinum_json_api_setup/json_api/error_serializer'
 
 require 'infinum_json_api_setup/json_api/content_negotiation'
+require 'infinum_json_api_setup/json_api/locale_negotiation'
 require 'infinum_json_api_setup/json_api/request_parsing'
 require 'infinum_json_api_setup/json_api/serializer_options'
 require 'infinum_json_api_setup/json_api/responder'

lib/infinum_json_api_setup/json_api/locale_negotiation.rb

@@ -0,0 +1,38 @@
+module InfinumJsonApiSetup
+  module JsonApi
+    module LocaleNegotiation
+      extend ActiveSupport::Concern
+
+      included do
+        around_action :setup_locale
+      end
+
+      def rescue_with_handler(*)
+        # Must render error in valid locale
+        valid_locale = locale_valid?(locale) ? locale : I18n.default_locale
+        I18n.with_locale(valid_locale) { super }
+      end
+
+      private
+
+      def setup_locale(&action)
+        I18n.with_locale(locale, &action)
+      end
+
+      def locale
+        (locale_from_request.presence || I18n.default_locale).to_s
+      end
+
+      def locale_valid?(locale)
+        I18n.available_locales.map(&:to_s).include?(locale)
+      end
+
+      def locale_from_request
+        accept_language = request.env['HTTP_ACCEPT_LANGUAGE']
+        return unless accept_language
+
+        accept_language.scan(/^[a-z]{2}/).first
+      end
+    end
+  end
+end

spec/dummy/app/controllers/api/v1/base_controller.rb

@@ -3,6 +3,7 @@ module V1
     class BaseController < ApplicationController
       include InfinumJsonApiSetup::JsonApi::ErrorHandling
       include InfinumJsonApiSetup::JsonApi::ContentNegotiation
+      include InfinumJsonApiSetup::JsonApi::LocaleNegotiation
 
       self.responder = InfinumJsonApiSetup::JsonApi::Responder
       respond_to :json_api

spec/dummy/app/controllers/api/v1/hello_controller.rb

@@ -0,0 +1,11 @@
+module Api
+  module V1
+    class HelloController < BaseController
+      # GET /api/v1/hello
+      def index
+        message = I18n.t('hello')
+        render json: { data: { type: 'hello', attributes: { message: message } } }
+      end
+    end
+  end
+end

spec/dummy/app/controllers/api/v1/locations_controller.rb

@@ -3,8 +3,6 @@ module V1
     class LocationsController < BaseController
       include Pundit::Authorization
 
-      around_action :with_locale
-
       # GET /api/v1/locations
       def index
         q = Api::V1::Locations::Query.new(Location.all, params.to_unsafe_hash)
@@ -44,10 +42,6 @@ def destroy
 
       private
 
-      def with_locale(&block)
-        I18n.with_locale(params.fetch(:locale, :en), &block)
-      end
-
       def permitted_params
         params.require(:location).permit(:latitude, :longitude)
       end

spec/dummy/config/initializers/i18n.rb

@@ -0,0 +1,3 @@
+I18n.available_locales = [:en, :hr]
+
+I18n.default_locale = :en

spec/dummy/config/locales/hr.yml

@@ -0,0 +1,2 @@
+hr:
+  hello: "Pozdrav svijetu"

spec/dummy/config/locales/json_api.en.yml

@@ -4,6 +4,7 @@ en:
       bad_request:
         title: Bad Request
         detail: Bad request
+        invalid_locale: Invalid locale
       not_found:
         title: Not found
         detail: Resource not found

spec/dummy/config/locales/json_api.hr.yml

@@ -0,0 +1,22 @@
+hr:
+  json_api:
+    errors:
+      bad_request:
+        title: Pogrešan zahtjev
+        detail: Pogrešan zahtjev
+        invalid_locale: Pogrešan jezik
+      not_found:
+        title: Nije pronađen
+        detail: Resurs nije pronađen
+      forbidden:
+        title: Zabranjeno
+        detail: Nije Vam dozvoljeno izvršiti ovu radnju
+      unauthorized:
+        title: Neovlašćeno
+        detail: Morate biti prijavljeni da biste izvršili ovu radnju
+      unprocessable_entity:
+        title: Neobradivo
+        detail: Ne može se obraditi zahtjev
+      internal_server_error:
+        title: Interna pogreška
+        detail: Dogodila se interna pogreška