3 files changed, 49 insertions, 0 deletions
diff --git a/lib/api/api.rb b/lib/api/api.rb
index 7834262d612..a9e1913f0f2 100644
--- a/lib/api/api.rb
+++ b/lib/api/api.rb
@@ -54,5 +54,7 @@ module API
     mount Keys
     mount Tags
     mount Triggers
+
+    mount Variables
   end
 end
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 26e7c956e8f..f71d072f269 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -365,5 +365,9 @@ module API
     class TriggerRequest < Grape::Entity
       expose :id, :variables
     end
+
+    class Variable < Grape::Entity
+      expose :id, :key, :value
+    end
   end
 end
diff --git a/lib/api/variables.rb b/lib/api/variables.rb
new file mode 100644
index 00000000000..6517150f6f4
--- /dev/null
+++ b/lib/api/variables.rb
@@ -0,0 +1,43 @@
+module API
+  # Projects variables API
+  class Variables < Grape::API
+    before { authenticate! }
+    before { authorize_admin_project }
+
+    resource :projects do
+      # Get project variables
+      #
+      # Parameters:
+      #   id (required) - The ID of a project
+      #   page (optional) - The page number for pagination
+      #   per_page (optional) - The value of items per page to show
+      # Example Request:
+      #   GET /projects/:id/variables
+      get ':id/variables' do
+        variables = user_project.variables
+        present paginate(variables), with: Entities::Variable
+      end
+
+      # Get specifica bariable of a project
+      #
+      # Parameters:
+      #   id (required) - The ID of a project
+      #   variable_id (required) - The ID OR `key` of variable to show; if variable_id contains only digits it's treated
+      #                            as ID other ways it's treated as `key`
+      # Example Reuest:
+      #   GET /projects/:id/variables/:variable_id
+      get ':id/variables/:variable_id' do
+        variable_id = params[:variable_id]
+        variables = user_project.variables
+        variables =
+          if variable_id.match(/^\d+$/)
+            variables.where(id: variable_id.to_i)
+          else
+            variables.where(key: variable_id)
+          end
+
+        present variables.first, with: Entities::Variable
+      end
+    end
+  end
+end