Merge branch 'api-drop-subscribed' into 'master'

Remove "subscribed" field from API responses returning list of issues or merge requests

Closes #22374

See merge request !9661

24 files changed, 451 insertions, 36 deletions

diff --git a/changelogs/unreleased/api-drop-subscribed.yml b/changelogs/unreleased/api-drop-subscribed.yml
new file mode 100644
index 00000000000..2a39026b519
--- /dev/null
+++ b/changelogs/unreleased/api-drop-subscribed.yml
@@ -0,0 +1,5 @@
+---
+title: Remove "subscribed" field from API responses returning list of issues or merge
+  requests
+merge_request: 9661
+author:
diff --git a/doc/api/issues.md b/doc/api/issues.md
index 0f22d0b7f94..4047ff14af2 100644
--- a/doc/api/issues.md
+++ b/doc/api/issues.md
@@ -84,7 +84,6 @@ Example response:
       "created_at" : "2016-01-04T15:31:51.081Z",
       "iid" : 6,
       "labels" : [],
-      "subscribed" : false,
       "user_notes_count": 1,
       "due_date": "2016-07-22",
       "web_url": "http://example.com/example/example/issues/6",
@@ -167,7 +166,6 @@ Example response:
       "title" : "Ut commodi ullam eos dolores perferendis nihil sunt.",
       "updated_at" : "2016-01-04T15:31:46.176Z",
       "created_at" : "2016-01-04T15:31:46.176Z",
-      "subscribed" : false,
       "user_notes_count": 1,
       "due_date": null,
       "web_url": "http://example.com/example/example/issues/1",
@@ -250,7 +248,6 @@ Example response:
       "title" : "Ut commodi ullam eos dolores perferendis nihil sunt.",
       "updated_at" : "2016-01-04T15:31:46.176Z",
       "created_at" : "2016-01-04T15:31:46.176Z",
-      "subscribed" : false,
       "user_notes_count": 1,
       "due_date": "2016-07-22",
       "web_url": "http://example.com/example/example/issues/1",
diff --git a/doc/api/merge_requests.md b/doc/api/merge_requests.md
index e178d5c1629..09d23cd2ff6 100644
--- a/doc/api/merge_requests.md
+++ b/doc/api/merge_requests.md
@@ -67,7 +67,6 @@ Parameters:
     },
     "merge_when_pipeline_succeeds": true,
     "merge_status": "can_be_merged",
-    "subscribed" : false,
     "sha": "8888888888888888888888888888888888888888",
     "merge_commit_sha": null,
     "user_notes_count": 1,
diff --git a/doc/api/v3_to_v4.md b/doc/api/v3_to_v4.md
index 67ee2b69c3f..ad52e1720e1 100644
--- a/doc/api/v3_to_v4.md
+++ b/doc/api/v3_to_v4.md
@@ -52,6 +52,10 @@ changes are in V4:
   - PUT `projects/:id`
 - Renamed `branch_name` to `branch` on DELETE `id/repository/branches/:branch` response [!8936](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8936)
 - Remove `public` param from create and edit actions of projects [!8736](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8736)
+- Remove `subscribed` field from responses returning list of issues or merge
+  requests. Fetch individual issues or merge requests to obtain the value
+  of `subscribed`
+  [!9661](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9661)
 - Use `visibility` as string parameter everywhere [!9337](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9337)
 - Notes do not return deprecated field `upvote` and `downvote` [!9384](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9384)
 - Return HTTP status code `400` for all validation errors when creating or updating a member instead of sometimes `422` error. [!9523](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9523)
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 98ef9d4118e..6e251b36bda 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -249,14 +249,11 @@ module API
       expose :start_date
     end
 
-    class Issue < ProjectEntity
+    class IssueBasic < ProjectEntity
       expose :label_names, as: :labels
       expose :milestone, using: Entities::Milestone
       expose :assignee, :author, using: Entities::UserBasic
 
-      expose :subscribed do |issue, options|
-        issue.subscribed?(options[:current_user], options[:project] || issue.project)
-      end
       expose :user_notes_count
       expose :upvotes, :downvotes
       expose :due_date
@@ -267,6 +264,12 @@ module API
       end
     end
 
+    class Issue < IssueBasic
+      expose :subscribed do |issue, options|
+        issue.subscribed?(options[:current_user], options[:project] || issue.project)
+      end
+    end
+
     class IssuableTimeStats < Grape::Entity
       expose :time_estimate
       expose :total_time_spent
@@ -279,7 +282,7 @@ module API
       expose :id
     end
 
-    class MergeRequest < ProjectEntity
+    class MergeRequestBasic < ProjectEntity
       expose :target_branch, :source_branch
       expose :upvotes, :downvotes
       expose :author, :assignee, using: Entities::UserBasic
@@ -291,9 +294,6 @@ module API
       expose :merge_status
       expose :diff_head_sha, as: :sha
       expose :merge_commit_sha
-      expose :subscribed do |merge_request, options|
-        merge_request.subscribed?(options[:current_user], options[:project])
-      end
       expose :user_notes_count
       expose :should_remove_source_branch?, as: :should_remove_source_branch
       expose :force_remove_source_branch?, as: :force_remove_source_branch
@@ -303,6 +303,12 @@ module API
       end
     end
 
+    class MergeRequest < MergeRequestBasic
+      expose :subscribed do |merge_request, options|
+        merge_request.subscribed?(options[:current_user], options[:project])
+      end
+    end
+
     class MergeRequestChanges < MergeRequest
       expose :diffs, as: :changes, using: Entities::RepoDiff do |compare, _|
         compare.raw_diffs(all_diffs: true).to_a
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index 9c41146f1e3..a43252a4661 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -388,14 +388,6 @@ module API
       header(*Gitlab::Workhorse.send_git_archive(repository, ref: ref, format: format))
     end
 
-    def issue_entity(project)
-      if project.has_external_issue_tracker?
-        Entities::ExternalIssue
-      else
-        Entities::Issue
-      end
-    end
-
     # The Grape Error Middleware only has access to env but no params. We workaround this by
     # defining a method that returns the right value.
     def define_params_for_grape_middleware
diff --git a/lib/api/issues.rb b/lib/api/issues.rb
index 1d6d0b05750..bda74069ad5 100644
--- a/lib/api/issues.rb
+++ b/lib/api/issues.rb
@@ -41,7 +41,7 @@ module API
 
     resource :issues do
       desc "Get currently authenticated user's issues" do
-        success Entities::Issue
+        success Entities::IssueBasic
       end
       params do
         optional :state, type: String, values: %w[opened closed all], default: 'all',
@@ -51,7 +51,7 @@ module API
       get do
         issues = find_issues(scope: 'authored')
 
-        present paginate(issues), with: Entities::Issue, current_user: current_user
+        present paginate(issues), with: Entities::IssueBasic, current_user: current_user
       end
     end
 
@@ -60,7 +60,7 @@ module API
     end
     resource :groups do
       desc 'Get a list of group issues' do
-        success Entities::Issue
+        success Entities::IssueBasic
       end
       params do
         optional :state, type: String, values: %w[opened closed all], default: 'opened',
@@ -72,7 +72,7 @@ module API
 
         issues = find_issues(group_id: group.id, state: params[:state] || 'opened')
 
-        present paginate(issues), with: Entities::Issue, current_user: current_user
+        present paginate(issues), with: Entities::IssueBasic, current_user: current_user
       end
     end
 
@@ -83,7 +83,7 @@ module API
       include TimeTrackingEndpoints
 
       desc 'Get a list of project issues' do
-        success Entities::Issue
+        success Entities::IssueBasic
       end
       params do
         optional :state, type: String, values: %w[opened closed all], default: 'all',
@@ -95,7 +95,7 @@ module API
 
         issues = find_issues(project_id: project.id)
 
-        present paginate(issues), with: Entities::Issue, current_user: current_user, project: user_project
+        present paginate(issues), with: Entities::IssueBasic, current_user: current_user, project: user_project
       end
 
       desc 'Get a single project issue' do
diff --git a/lib/api/merge_requests.rb b/lib/api/merge_requests.rb
index 4638a66811d..6fc33a7a54a 100644
--- a/lib/api/merge_requests.rb
+++ b/lib/api/merge_requests.rb
@@ -25,6 +25,14 @@ module API
           render_api_error!(errors, 400)
         end
 
+        def issue_entity(project)
+          if project.has_external_issue_tracker?
+            Entities::ExternalIssue
+          else
+            Entities::IssueBasic
+          end
+        end
+
         params :optional_params do
           optional :description, type: String, desc: 'The description of the merge request'
           optional :assignee_id, type: Integer, desc: 'The ID of a user to assign the merge request'
@@ -35,7 +43,7 @@ module API
       end
 
       desc 'List merge requests' do
-        success Entities::MergeRequest
+        success Entities::MergeRequestBasic
       end
       params do
         optional :state, type: String, values: %w[opened closed merged all], default: 'all',
@@ -62,7 +70,7 @@ module API
           end
 
         merge_requests = merge_requests.reorder(params[:order_by] => params[:sort])
-        present paginate(merge_requests), with: Entities::MergeRequest, current_user: current_user, project: user_project
+        present paginate(merge_requests), with: Entities::MergeRequestBasic, current_user: current_user, project: user_project
       end
 
       desc 'Create a merge request' do
diff --git a/lib/api/milestones.rb b/lib/api/milestones.rb
index bd74174c655..e7f7edd95c7 100644
--- a/lib/api/milestones.rb
+++ b/lib/api/milestones.rb
@@ -103,7 +103,7 @@ module API
       end
 
       desc 'Get all issues for a single project milestone' do
-        success Entities::Issue
+        success Entities::IssueBasic
       end
       params do
         requires :milestone_id, type: Integer, desc: 'The ID of a project milestone'
@@ -120,12 +120,12 @@ module API
         }
 
         issues = IssuesFinder.new(current_user, finder_params).execute
-        present paginate(issues), with: Entities::Issue, current_user: current_user, project: user_project
+        present paginate(issues), with: Entities::IssueBasic, current_user: current_user, project: user_project
       end
 
       desc 'Get all merge requests for a single project milestone' do
         detail 'This feature was introduced in GitLab 9.'
-        success Entities::MergeRequest
+        success Entities::MergeRequestBasic
       end
       params do
         requires :milestone_id, type: Integer, desc: 'The ID of a project milestone'
@@ -142,7 +142,10 @@ module API
         }
 
         merge_requests = MergeRequestsFinder.new(current_user, finder_params).execute
-        present paginate(merge_requests), with: Entities::MergeRequest, current_user: current_user, project: user_project
+        present paginate(merge_requests),
+          with: Entities::MergeRequestBasic,
+          current_user: current_user,
+          project: user_project
       end
     end
   end
diff --git a/lib/api/v3/merge_requests.rb b/lib/api/v3/merge_requests.rb
index 654e818e1b5..7dbd4691a94 100644
--- a/lib/api/v3/merge_requests.rb
+++ b/lib/api/v3/merge_requests.rb
@@ -28,6 +28,14 @@ module API
             render_api_error!(errors, 400)
           end
 
+          def issue_entity(project)
+            if project.has_external_issue_tracker?
+              ::API::Entities::ExternalIssue
+            else
+              ::API::Entities::Issue
+            end
+          end
+
           params :optional_params do
             optional :description, type: String, desc: 'The description of the merge request'
             optional :assignee_id, type: Integer, desc: 'The ID of a user to assign the merge request'
diff --git a/lib/api/v3/milestones.rb b/lib/api/v3/milestones.rb
index bbc29c40ee2..2a850a08a8a 100644
--- a/lib/api/v3/milestones.rb
+++ b/lib/api/v3/milestones.rb
@@ -37,6 +37,27 @@ module API
 
           present paginate(milestones), with: ::API::Entities::Milestone
         end
+
+        desc 'Get all issues for a single project milestone' do
+          success ::API::Entities::Issue
+        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
+
+          milestone = user_project.milestones.find(params[:milestone_id])
+
+          finder_params = {
+            project_id: user_project.id,
+            milestone_title: milestone.title
+          }
+
+          issues = IssuesFinder.new(current_user, finder_params).execute
+          present paginate(issues), with: ::API::Entities::Issue, current_user: current_user, project: user_project
+        end
       end
     end
   end
diff --git a/spec/fixtures/api/schemas/public_api/v3/issues.json b/spec/fixtures/api/schemas/public_api/v3/issues.json
new file mode 100644
index 00000000000..f2ee9c925ae
--- /dev/null
+++ b/spec/fixtures/api/schemas/public_api/v3/issues.json
@@ -0,0 +1,77 @@
+{
+  "type": "array",
+  "items": {
+    "type": "object",
+    "properties" : {
+      "id": { "type": "integer" },
+      "iid": { "type": "integer" },
+      "project_id": { "type": "integer" },
+      "title": { "type": "string" },
+      "description": { "type": ["string", "null"] },
+      "state": { "type": "string" },
+      "created_at": { "type": "date" },
+      "updated_at": { "type": "date" },
+      "labels": {
+        "type": "array",
+        "items": {
+          "type": "string"
+        }
+      },
+      "milestone": {
+        "type": "object",
+        "properties": {
+          "id": { "type": "integer" },
+          "iid": { "type": "integer" },
+          "project_id": { "type": "integer" },
+          "title": { "type": "string" },
+          "description": { "type": ["string", "null"] },
+          "state": { "type": "string" },
+          "created_at": { "type": "date" },
+          "updated_at": { "type": "date" },
+          "due_date": { "type": "date" },
+          "start_date": { "type": "date" }
+        },
+        "additionalProperties": false
+      },
+      "assignee": {
+        "type": ["object", "null"],
+        "properties": {
+          "name": { "type": "string" },
+          "username": { "type": "string" },
+          "id": { "type": "integer" },
+          "state": { "type": "string" },
+          "avatar_url": { "type": "uri" },
+          "web_url": { "type": "uri" }
+        },
+        "additionalProperties": false
+      },
+      "author": {
+        "type": "object",
+        "properties": {
+          "name": { "type": "string" },
+          "username": { "type": "string" },
+          "id": { "type": "integer" },
+          "state": { "type": "string" },
+          "avatar_url": { "type": "uri" },
+          "web_url": { "type": "uri" }
+        },
+        "additionalProperties": false
+      },
+      "user_notes_count": { "type": "integer" },
+      "upvotes": { "type": "integer" },
+      "downvotes": { "type": "integer" },
+      "due_date": { "type": ["date", "null"] },
+      "confidential": { "type": "boolean" },
+      "web_url": { "type": "uri" },
+      "subscribed": { "type": ["boolean"] }
+    },
+    "required": [
+      "id", "iid", "project_id", "title", "description",
+      "state", "created_at", "updated_at", "labels",
+      "milestone", "assignee", "author", "user_notes_count",
+      "upvotes", "downvotes", "due_date", "confidential",
+      "web_url", "subscribed"
+    ],
+    "additionalProperties": false
+  }
+}
diff --git a/spec/fixtures/api/schemas/public_api/v3/merge_requests.json b/spec/fixtures/api/schemas/public_api/v3/merge_requests.json
new file mode 100644
index 00000000000..01f9fbb2c89
--- /dev/null
+++ b/spec/fixtures/api/schemas/public_api/v3/merge_requests.json
@@ -0,0 +1,89 @@
+{
+  "type": "array",
+  "items": {
+    "type": "object",
+    "properties" : {
+      "id": { "type": "integer" },
+      "iid": { "type": "integer" },
+      "project_id": { "type": "integer" },
+      "title": { "type": "string" },
+      "description": { "type": ["string", "null"] },
+      "state": { "type": "string" },
+      "created_at": { "type": "date" },
+      "updated_at": { "type": "date" },
+      "target_branch": { "type": "string" },
+      "source_branch": { "type": "string" },
+      "upvotes": { "type": "integer" },
+      "downvotes": { "type": "integer" },
+      "author": {
+        "type": "object",
+        "properties": {
+          "name": { "type": "string" },
+          "username": { "type": "string" },
+          "id": { "type": "integer" },
+          "state": { "type": "string" },
+          "avatar_url": { "type": "uri" },
+          "web_url": { "type": "uri" }
+        },
+        "additionalProperties": false
+      },
+      "assignee": {
+        "type": "object",
+        "properties": {
+          "name": { "type": "string" },
+          "username": { "type": "string" },
+          "id": { "type": "integer" },
+          "state": { "type": "string" },
+          "avatar_url": { "type": "uri" },
+          "web_url": { "type": "uri" }
+        },
+        "additionalProperties": false
+      },
+      "source_project_id": { "type": "integer" },
+      "target_project_id": { "type": "integer" },
+      "labels": {
+        "type": "array",
+        "items": {
+          "type": "string"
+        }
+      },
+      "work_in_progress": { "type": "boolean" },
+      "milestone": {
+        "type": ["object", "null"],
+        "properties": {
+          "id": { "type": "integer" },
+          "iid": { "type": "integer" },
+          "project_id": { "type": "integer" },
+          "title": { "type": "string" },
+          "description": { "type": ["string", "null"] },
+          "state": { "type": "string" },
+          "created_at": { "type": "date" },
+          "updated_at": { "type": "date" },
+          "due_date": { "type": "date" },
+          "start_date": { "type": "date" }
+        },
+        "additionalProperties": false
+      },
+      "merge_when_build_succeeds": { "type": "boolean" },
+      "merge_status": { "type": "string" },
+      "sha": { "type": "string" },
+      "merge_commit_sha": { "type": ["string", "null"] },
+      "user_notes_count": { "type": "integer" },
+      "should_remove_source_branch": { "type": ["boolean", "null"] },
+      "force_remove_source_branch": { "type": ["boolean", "null"] },
+      "web_url": { "type": "uri" },
+      "subscribed": { "type": ["boolean"] }
+    },
+    "required": [
+      "id", "iid", "project_id", "title", "description",
+      "state", "created_at", "updated_at", "target_branch",
+      "source_branch", "upvotes", "downvotes", "author",
+      "assignee", "source_project_id", "target_project_id",
+      "labels", "work_in_progress", "milestone", "merge_when_build_succeeds",
+      "merge_status", "sha", "merge_commit_sha", "user_notes_count",
+      "should_remove_source_branch", "force_remove_source_branch",
+      "web_url", "subscribed"
+    ],
+    "additionalProperties": false
+  }
+}
diff --git a/spec/fixtures/api/schemas/public_api/v4/issues.json b/spec/fixtures/api/schemas/public_api/v4/issues.json
new file mode 100644
index 00000000000..52199e75734
--- /dev/null
+++ b/spec/fixtures/api/schemas/public_api/v4/issues.json
@@ -0,0 +1,76 @@
+{
+  "type": "array",
+  "items": {
+    "type": "object",
+    "properties" : {
+      "id": { "type": "integer" },
+      "iid": { "type": "integer" },
+      "project_id": { "type": "integer" },
+      "title": { "type": "string" },
+      "description": { "type": ["string", "null"] },
+      "state": { "type": "string" },
+      "created_at": { "type": "date" },
+      "updated_at": { "type": "date" },
+      "labels": {
+        "type": "array",
+        "items": {
+          "type": "string"
+        }
+      },
+      "milestone": {
+        "type": "object",
+        "properties": {
+          "id": { "type": "integer" },
+          "iid": { "type": "integer" },
+          "project_id": { "type": "integer" },
+          "title": { "type": "string" },
+          "description": { "type": ["string", "null"] },
+          "state": { "type": "string" },
+          "created_at": { "type": "date" },
+          "updated_at": { "type": "date" },
+          "due_date": { "type": "date" },
+          "start_date": { "type": "date" }
+        },
+        "additionalProperties": false
+      },
+      "assignee": {
+        "type": ["object", "null"],
+        "properties": {
+          "name": { "type": "string" },
+          "username": { "type": "string" },
+          "id": { "type": "integer" },
+          "state": { "type": "string" },
+          "avatar_url": { "type": "uri" },
+          "web_url": { "type": "uri" }
+        },
+        "additionalProperties": false
+      },
+      "author": {
+        "type": "object",
+        "properties": {
+          "name": { "type": "string" },
+          "username": { "type": "string" },
+          "id": { "type": "integer" },
+          "state": { "type": "string" },
+          "avatar_url": { "type": "uri" },
+          "web_url": { "type": "uri" }
+        },
+        "additionalProperties": false
+      },
+      "user_notes_count": { "type": "integer" },
+      "upvotes": { "type": "integer" },
+      "downvotes": { "type": "integer" },
+      "due_date": { "type": ["date", "null"] },
+      "confidential": { "type": "boolean" },
+      "web_url": { "type": "uri" }
+    },
+    "required": [
+      "id", "iid", "project_id", "title", "description",
+      "state", "created_at", "updated_at", "labels",
+      "milestone", "assignee", "author", "user_notes_count",
+      "upvotes", "downvotes", "due_date", "confidential",
+      "web_url"
+    ],
+    "additionalProperties": false
+  }
+}
diff --git a/spec/fixtures/api/schemas/public_api/v4/merge_requests.json b/spec/fixtures/api/schemas/public_api/v4/merge_requests.json
new file mode 100644
index 00000000000..51642e8cbb8
--- /dev/null
+++ b/spec/fixtures/api/schemas/public_api/v4/merge_requests.json
@@ -0,0 +1,88 @@
+{
+  "type": "array",
+  "items": {
+    "type": "object",
+    "properties" : {
+      "id": { "type": "integer" },
+      "iid": { "type": "integer" },
+      "project_id": { "type": "integer" },
+      "title": { "type": "string" },
+      "description": { "type": ["string", "null"] },
+      "state": { "type": "string" },
+      "created_at": { "type": "date" },
+      "updated_at": { "type": "date" },
+      "target_branch": { "type": "string" },
+      "source_branch": { "type": "string" },
+      "upvotes": { "type": "integer" },
+      "downvotes": { "type": "integer" },
+      "author": {
+        "type": "object",
+        "properties": {
+          "name": { "type": "string" },
+          "username": { "type": "string" },
+          "id": { "type": "integer" },
+          "state": { "type": "string" },
+          "avatar_url": { "type": "uri" },
+          "web_url": { "type": "uri" }
+        },
+        "additionalProperties": false
+      },
+      "assignee": {
+        "type": "object",
+        "properties": {
+          "name": { "type": "string" },
+          "username": { "type": "string" },
+          "id": { "type": "integer" },
+          "state": { "type": "string" },
+          "avatar_url": { "type": "uri" },
+          "web_url": { "type": "uri" }
+        },
+        "additionalProperties": false
+      },
+      "source_project_id": { "type": "integer" },
+      "target_project_id": { "type": "integer" },
+      "labels": {
+        "type": "array",
+        "items": {
+          "type": "string"
+        }
+      },
+      "work_in_progress": { "type": "boolean" },
+      "milestone": {
+        "type": ["object", "null"],
+        "properties": {
+          "id": { "type": "integer" },
+          "iid": { "type": "integer" },
+          "project_id": { "type": "integer" },
+          "title": { "type": "string" },
+          "description": { "type": ["string", "null"] },
+          "state": { "type": "string" },
+          "created_at": { "type": "date" },
+          "updated_at": { "type": "date" },
+          "due_date": { "type": "date" },
+          "start_date": { "type": "date" }
+        },
+        "additionalProperties": false
+      },
+      "merge_when_pipeline_succeeds": { "type": "boolean" },
+      "merge_status": { "type": "string" },
+      "sha": { "type": "string" },
+      "merge_commit_sha": { "type": ["string", "null"] },
+      "user_notes_count": { "type": "integer" },
+      "should_remove_source_branch": { "type": ["boolean", "null"] },
+      "force_remove_source_branch": { "type": ["boolean", "null"] },
+      "web_url": { "type": "uri" }
+    },
+    "required": [
+      "id", "iid", "project_id", "title", "description",
+      "state", "created_at", "updated_at", "target_branch",
+      "source_branch", "upvotes", "downvotes", "author",
+      "assignee", "source_project_id", "target_project_id",
+      "labels", "work_in_progress", "milestone", "merge_when_pipeline_succeeds",
+      "merge_status", "sha", "merge_commit_sha", "user_notes_count",
+      "should_remove_source_branch", "force_remove_source_branch",
+      "web_url"
+    ],
+    "additionalProperties": false
+  }
+}
diff --git a/spec/fixtures/api/schemas/user/login.json b/spec/fixtures/api/schemas/public_api/v4/user/login.json
index 6181b3ccc86..6181b3ccc86 100644
--- a/spec/fixtures/api/schemas/user/login.json
+++ b/spec/fixtures/api/schemas/public_api/v4/user/login.json
diff --git a/spec/fixtures/api/schemas/user/public.json b/spec/fixtures/api/schemas/public_api/v4/user/public.json
index 5587cfec61a..5587cfec61a 100644
--- a/spec/fixtures/api/schemas/user/public.json
+++ b/spec/fixtures/api/schemas/public_api/v4/user/public.json
diff --git a/spec/requests/api/issues_spec.rb b/spec/requests/api/issues_spec.rb
index 710e4320fd1..aca7c6a0734 100644
--- a/spec/requests/api/issues_spec.rb
+++ b/spec/requests/api/issues_spec.rb
@@ -270,6 +270,13 @@ describe API::Issues, api: true  do
         expect(json_response).to be_an Array
         expect(response_dates).to eq(response_dates.sort)
       end
+
+      it 'matches V4 response schema' do
+        get api('/issues', user)
+
+        expect(response).to have_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/issues')
+      end
     end
   end
 
diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index b3f0876c822..1083abf2ad3 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -93,6 +93,13 @@ describe API::MergeRequests, api: true  do
         expect(json_response.first['id']).to eq merge_request_closed.id
       end
 
+      it 'matches V4 response schema' do
+        get api("/projects/#{project.id}/merge_requests", user)
+
+        expect(response).to have_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/merge_requests')
+      end
+
       context "with ordering" do
         before do
           @mr_later = mr_with_later_created_and_updated_at_time
diff --git a/spec/requests/api/milestones_spec.rb b/spec/requests/api/milestones_spec.rb
index 78c230117b8..3bb8b6fdbeb 100644
--- a/spec/requests/api/milestones_spec.rb
+++ b/spec/requests/api/milestones_spec.rb
@@ -227,6 +227,13 @@ describe API::Milestones, api: true  do
       expect(json_response.first['milestone']['title']).to eq(milestone.title)
     end
 
+    it 'matches V4 response schema for a list of issues' do
+      get api("/projects/#{project.id}/milestones/#{milestone.id}/issues", user)
+
+      expect(response).to have_http_status(200)
+      expect(response).to match_response_schema('public_api/v4/issues')
+    end
+
     it 'returns a 401 error if user not authenticated' do
       get api("/projects/#{project.id}/milestones/#{milestone.id}/issues")
 
diff --git a/spec/requests/api/users_spec.rb b/spec/requests/api/users_spec.rb
index e5e4c84755f..881c48c75e0 100644
--- a/spec/requests/api/users_spec.rb
+++ b/spec/requests/api/users_spec.rb
@@ -728,7 +728,7 @@ describe API::Users, api: true  do
         get api("/user", user)
 
         expect(response).to have_http_status(200)
-        expect(response).to match_response_schema('user/public')
+        expect(response).to match_response_schema('public_api/v4/user/public')
         expect(json_response['id']).to eq(user.id)
       end
     end
@@ -747,7 +747,7 @@ describe API::Users, api: true  do
           get api("/user?private_token=#{admin_personal_access_token}")
 
           expect(response).to have_http_status(200)
-          expect(response).to match_response_schema('user/public')
+          expect(response).to match_response_schema('public_api/v4/user/public')
           expect(json_response['id']).to eq(admin.id)
         end
       end
@@ -757,7 +757,7 @@ describe API::Users, api: true  do
           get api("/user?private_token=#{admin.private_token}&sudo=#{user.id}")
 
           expect(response).to have_http_status(200)
-          expect(response).to match_response_schema('user/login')
+          expect(response).to match_response_schema('public_api/v4/user/login')
           expect(json_response['id']).to eq(user.id)
         end
 
@@ -765,7 +765,7 @@ describe API::Users, api: true  do
           get api("/user?private_token=#{admin.private_token}")
 
           expect(response).to have_http_status(200)
-          expect(response).to match_response_schema('user/public')
+          expect(response).to match_response_schema('public_api/v4/user/public')
           expect(json_response['id']).to eq(admin.id)
         end
       end
diff --git a/spec/requests/api/v3/issues_spec.rb b/spec/requests/api/v3/issues_spec.rb
index 803acd55470..2a8105d5a2b 100644
--- a/spec/requests/api/v3/issues_spec.rb
+++ b/spec/requests/api/v3/issues_spec.rb
@@ -232,6 +232,13 @@ describe API::V3::Issues, api: true  do
         expect(json_response).to be_an Array
         expect(response_dates).to eq(response_dates.sort)
       end
+
+      it 'matches V3 response schema' do
+        get v3_api('/issues', user)
+
+        expect(response).to have_http_status(200)
+        expect(response).to match_response_schema('public_api/v3/issues')
+      end
     end
   end
 
diff --git a/spec/requests/api/v3/merge_requests_spec.rb b/spec/requests/api/v3/merge_requests_spec.rb
index 51764d1000e..b7ed643bc21 100644
--- a/spec/requests/api/v3/merge_requests_spec.rb
+++ b/spec/requests/api/v3/merge_requests_spec.rb
@@ -73,6 +73,13 @@ describe API::MergeRequests, api: true  do
         expect(json_response.first['title']).to eq(merge_request_merged.title)
       end
 
+      it 'matches V3 response schema' do
+        get v3_api("/projects/#{project.id}/merge_requests", user)
+
+        expect(response).to have_http_status(200)
+        expect(response).to match_response_schema('public_api/v3/merge_requests')
+      end
+
       context "with ordering" do
         before do
           @mr_later = mr_with_later_created_and_updated_at_time
diff --git a/spec/requests/api/v3/milestones_spec.rb b/spec/requests/api/v3/milestones_spec.rb
index 77705d8c839..127c0eec881 100644
--- a/spec/requests/api/v3/milestones_spec.rb
+++ b/spec/requests/api/v3/milestones_spec.rb
@@ -181,6 +181,13 @@ describe API::V3::Milestones, api: true  do
       expect(json_response.first['milestone']['title']).to eq(milestone.title)
     end
 
+    it 'matches V3 response schema for a list of issues' do
+      get v3_api("/projects/#{project.id}/milestones/#{milestone.id}/issues", user)
+
+      expect(response).to have_http_status(200)
+      expect(response).to match_response_schema('public_api/v3/issues')
+    end
+
     it 'returns a 401 error if user not authenticated' do
       get v3_api("/projects/#{project.id}/milestones/#{milestone.id}/issues")