Added pages and routes for Groups by tag and category

• Added:
- pages and routes for Groups by tag and category

app/controllers/api/v1/groups_controller.rb

@@ -7,7 +7,7 @@ class Api::V1::GroupsController < Api::BaseController
   before_action -> { doorkeeper_authorize! :write, :'write:groups' }, except: [:index, :show]
 
   before_action :require_user!, except: [:index, :show]
-  before_action :set_group, except: [:index, :create]
+  before_action :set_group, except: [:index, :create, :by_category, :by_tag]
 
   def index
     case current_tab
@@ -34,6 +34,26 @@ class Api::V1::GroupsController < Api::BaseController
     render json: @groups, each_serializer: REST::GroupSerializer
   end
 
+  def by_category
+    if !current_user
+      render json: { error: 'This method requires an authenticated user' }, status: 422
+    end
+
+    @groups = []
+
+    render json: @groups, each_serializer: REST::GroupSerializer
+  end
+
+  def by_tag
+    if !current_user
+      render json: { error: 'This method requires an authenticated user' }, status: 422
+    end
+
+    @groups = []
+
+    render json: @groups, each_serializer: REST::GroupSerializer
+  end
+
   def current_tab 
     tab = 'featured'
     tab = params[:tab] if ['featured', 'member', 'admin', 'new'].include? params[:tab]