Use the pagination helper in the API

lib/api/access_requests.rb

 module API
   class AccessRequests < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     helpers ::API::Helpers::MembersHelpers
@@ -13,6 +15,9 @@ module API
           detail 'This feature was introduced in GitLab 8.11.'
           success Entities::AccessRequester
         end
+        params do
+          use :pagination
+        end
         get ":id/access_requests" do
           source = find_source(source_type, params[:id])

lib/api/award_emoji.rb

 module API
   class AwardEmoji < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     AWARDABLES = %w[issue merge_request snippet]
@@ -21,6 +23,9 @@ module API
             detail 'This feature was introduced in 8.9'
             success Entities::AwardEmoji
           end
+          params do
+            use :pagination
+          end
           get endpoint do
             if can_read_awardable?
               awards = paginate(awardable.award_emoji)

lib/api/builds.rb

 module API
-  # Projects builds API
   class Builds < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     params do
@@ -28,6 +29,7 @@ module API
       end
       params do
         use :optional_scope
+        use :pagination
       end
       get ':id/builds' do
         builds = user_project.builds.order('id DESC')
@@ -41,8 +43,9 @@ module API
         success Entities::Build
       end
       params do
-        requires :sha,   type: String, desc: 'The SHA id of a commit'
+        requires :sha, type: String, desc: 'The SHA id of a commit'
         use :optional_scope
+        use :pagination
       end
       get ':id/repository/commits/:sha/builds' do
         authorize_read_builds!

lib/api/commit_statuses.rb

 require 'mime/types'
 module API
-  # Project commit statuses API
   class CommitStatuses < Grape::API
     resource :projects do
+      include PaginationParams
+
       before { authenticate! }
       desc "Get a commit's statuses" do
@@ -16,6 +17,7 @@ module API
         optional :stage, type: String, desc: 'The stage'
         optional :name,  type: String, desc: 'The name'
         optional :all,   type: String, desc: 'Show all statuses, default: false'
+        use :pagination
       end
       get ':id/repository/commits/:sha/statuses' do
         authorize!(:read_commit_status, user_project)

lib/api/groups.rb

 module API
   class Groups < Grape::API
+    include PaginationParams
+    
     before { authenticate! }
     helpers do
@@ -21,6 +23,7 @@ module API
         optional :search, type: String, desc: 'Search for a specific group'
         optional :order_by, type: String, values: %w[name path], default: 'name', desc: 'Order by name or path'
         optional :sort, type: String, values: %w[asc desc], default: 'asc', desc: 'Sort by asc (ascending) or desc (descending)'
+        use :pagination
       end
       get do
         groups = if current_user.admin
@@ -41,6 +44,9 @@ module API
       desc 'Get list of owned groups for authenticated user' do
         success Entities::Group
       end
+      params do
+        use :pagination
+      end
       get '/owned' do
         groups = current_user.owned_groups
         present paginate(groups), with: Entities::Group, user: current_user
@@ -110,11 +116,13 @@ module API
       desc 'Get a list of projects in this group.' do
         success Entities::Project
       end
+      params do
+        use :pagination
+      end
       get ":id/projects" do
         group = find_group!(params[:id])
         projects = GroupProjectsFinder.new(group).execute(current_user)
-        projects = paginate projects
-        present projects, with: Entities::Project, user: current_user
+        present paginate(projects), with: Entities::Project, user: current_user
       end
       desc 'Transfer a project to the group namespace. Available only for admin.' do

lib/api/members.rb

 module API
   class Members < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     helpers ::API::Helpers::MembersHelpers
@@ -14,15 +16,15 @@ module API
         end
         params do
           optional :query, type: String, desc: 'A query string to search for members'
+          use :pagination
         end
         get ":id/members" do
           source = find_source(source_type, params[:id])
           users = source.users
           users = users.merge(User.search(params[:query])) if params[:query]
-          users = paginate(users)
-          present users, with: Entities::Member, source: source
+          present paginate(users), with: Entities::Member, source: source
         end
         desc 'Gets a member of a group or project.' do

lib/api/merge_requests.rb

 module API
   class MergeRequests < Grape::API
+    include PaginationParams
+
     DEPRECATION_MESSAGE = 'This endpoint is deprecated and will be removed in GitLab 9.0.'.freeze
     before { authenticate! }
@@ -42,6 +44,7 @@ module API
         optional :sort, type: String, values: %w[asc desc], default: 'desc',
                         desc: 'Return merge requests sorted in `asc` or `desc` order.'
         optional :iid, type: Array[Integer], desc: 'The IID of the merge requests'
+        use :pagination
       end
       get ":id/merge_requests" do
         authorize! :read_merge_request, user_project
@@ -218,6 +221,9 @@ module API
           detail 'Duplicate. DEPRECATED and WILL BE REMOVED in 9.0'
           success Entities::MRNote
         end
+        params do
+          use :pagination
+        end
         get "#{path}/comments" do
           merge_request = user_project.merge_requests.find(params[:merge_request_id])
@@ -255,6 +261,9 @@ module API
         desc 'List issues that will be closed on merge' do
           success Entities::MRNote
         end
+        params do
+          use :pagination
+        end
         get "#{path}/closes_issues" do
           merge_request = user_project.merge_requests.find(params[:merge_request_id])
           issues = ::Kaminari.paginate_array(merge_request.closes_issues(current_user))

lib/api/milestones.rb

 module API
-  # Milestones API
   class Milestones < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     helpers do
@@ -30,6 +31,7 @@ module API
         optional :state, type: String, values: %w[active closed all], default: 'all',
                          desc: 'Return "active", "closed", or "all" milestones'
         optional :iid, type: Array[Integer], desc: 'The IID of the milestone'
+        use :pagination
       end
       get ":id/milestones" do
         authorize! :read_milestone, user_project
@@ -103,6 +105,7 @@ module API
       end
       params do
         requires :milestone_id, type: Integer, desc: 'The ID of a project milestone'
+        use :pagination
       end
       get ":id/milestones/:milestone_id/issues" do
         authorize! :read_milestone, user_project

lib/api/namespaces.rb

 module API
-  # namespaces API
   class Namespaces < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     resource :namespaces do
@@ -9,6 +10,7 @@ module API
       end
       params do
         optional :search, type: String, desc: "Search query for namespaces"
+        use :pagination
       end
       get do
         namespaces = current_user.admin ? Namespace.all : current_user.namespaces

lib/api/notes.rb

 module API
-  # Notes API
   class Notes < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     NOTEABLE_TYPES = [Issue, MergeRequest, Snippet]
@@ -17,6 +18,7 @@ module API
         end
         params do
           requires :noteable_id, type: Integer, desc: 'The ID of the noteable'
+          use :pagination
         end
         get ":id/#{noteables_str}/:noteable_id/notes" do
           noteable = user_project.send(noteables_str.to_sym).find(params[:noteable_id])

lib/api/project_hooks.rb

 module API
-  # Projects API
   class ProjectHooks < Grape::API
+    include PaginationParams
+
+    before { authenticate! }
+    before { authorize_admin_project }
+
     helpers do
       params :project_hook_properties do
         requires :url, type: String, desc: "The URL to send the request to"
@@ -17,9 +21,6 @@ module API
       end
     end
-    before { authenticate! }
-    before { authorize_admin_project }
-
     params do
       requires :id, type: String, desc: 'The ID of a project'
     end
@@ -27,6 +28,9 @@ module API
       desc 'Get project hooks' do
         success Entities::ProjectHook
       end
+      params do
+        use :pagination
+      end
       get ":id/hooks" do
         hooks = paginate user_project.hooks

lib/api/project_snippets.rb

 module API
-  # Projects API
   class ProjectSnippets < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     params do
@@ -24,6 +25,9 @@ module API
       desc 'Get all project snippets' do
         success Entities::ProjectSnippet
       end
+      params do
+        use :pagination
+      end
       get ":id/snippets" do
         present paginate(snippets_for_current_user), with: Entities::ProjectSnippet
       end

lib/api/runners.rb

 module API
   class Runners < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     resource :runners do
@@ -9,6 +11,7 @@ module API
       params do
         optional :scope, type: String, values: %w[active paused online],
                          desc: 'The scope of specific runners to show'
+        use :pagination
       end
       get do
         runners = filter_runners(current_user.ci_authorized_runners, params[:scope], without: ['specific', 'shared'])
@@ -21,6 +24,7 @@ module API
       params do
         optional :scope, type: String, values: %w[active paused online specific shared],
                          desc: 'The scope of specific runners to show'
+        use :pagination
       end
       get 'all' do
         authenticated_as_admin!
@@ -91,6 +95,7 @@ module API
       params do
         optional :scope, type: String, values: %w[active paused online specific shared],
                          desc: 'The scope of specific runners to show'
+        use :pagination
       end
       get ':id/runners' do
         runners = filter_runners(Ci::Runner.owned_or_shared(user_project.id), params[:scope])

lib/api/todos.rb

 module API
-  # Todos API
   class Todos < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     ISSUABLE_TYPES = {
@@ -44,10 +45,11 @@ module API
       desc 'Get a todo list' do
         success Entities::Todo
       end
+      params do
+        use :pagination
+      end
       get do
-        todos = find_todos
-
-        present paginate(todos), with: Entities::Todo, current_user: current_user
+        present paginate(find_todos), with: Entities::Todo, current_user: current_user
       end
       desc 'Mark a todo as done' do

lib/api/triggers.rb

 module API
   class Triggers < Grape::API
+    include PaginationParams
+
     params do
       requires :id, type: String, desc: 'The ID of a project'
     end
@@ -42,6 +44,9 @@ module API
       desc 'Get triggers list' do
         success Entities::Trigger
       end
+      params do
+        use :pagination
+      end
       get ':id/triggers' do
         authenticate!
         authorize! :admin_build, user_project

lib/api/users.rb

 module API
-  # Users API
   class Users < Grape::API
+    include PaginationParams
+
     before { authenticate! }
     resource :users, requirements: { uid: /[0-9]*/, id: /[0-9]*/ } do
@@ -33,6 +34,7 @@ module API
         optional :active, type: Boolean, default: false, desc: 'Filters only active users'
         optional :external, type: Boolean, default: false, desc: 'Filters only external users'
         optional :blocked, type: Boolean, default: false, desc: 'Filters only blocked users'
+        use :pagination
       end
       get do
         unless can?(current_user, :read_users_list, nil)
@@ -330,6 +332,7 @@ module API
       end
       params do
         requires :id, type: Integer, desc: 'The ID of the user'
+        use :pagination
       end
       get ':id/events' do
         user = User.find_by(id: params[:id])