Реализация Page и DataCardWidget

api/app/controllers/api/v1/channels/application_controller.rb

@@ -0,0 +1,11 @@
+module Api
+  module V1
+    module Channels
+      class ApplicationController < ApplicationController
+        def resource_channel
+          @resource_channel ||= Channel.find(params[:channel_id])
+        end
+      end
+    end
+  end
+end

api/app/controllers/api/v1/channels/histories_controller.rb

@@ -0,0 +1,15 @@
+module Api
+  module V1
+    module Channels
+      class HistoriesController < ApplicationController
+        before_action :resource_channel
+
+        def index
+          @history = @resource_channel.histories.last(100)
+
+          render json: @history
+        end
+      end
+    end
+  end
+end

api/app/controllers/api/v1/channels_controller.rb

@@ -0,0 +1,27 @@
+module Api
+  module V1
+    class ChannelsController < ApplicationController
+      def index
+        @channels = Channel.all
+        render json: @channels
+      end
+
+      def show
+        @channel = Channel.find(params[:id])
+        render json: @channel
+      end
+
+      def selected_index
+        ids = params[:ids]
+
+        if ids.present? && ids.is_a?(Array)
+          @channels = Channel.where(id: ids)
+          @channels = @channels.sort_by(&:id)
+          render json: @channels
+        else
+          render json: { error: "Invalid or missing ids" }, status: :unprocessable_entity
+        end
+      end
+    end
+  end
+end

api/app/controllers/application_controller.rb

@@ -0,0 +1,5 @@
+class ApplicationController < ActionController::API
+  # TODO: auth. users before exec request
+  # TODO: implement middleware for IP trottling
+  # TODO: implement request rate limit
+end