Add my_reaction_emoji param to /merge_requests API

app/finders/merge_requests_finder.rb

@@ -16,6 +16,7 @@
 #     label_name: string
 #     sort: string
 #     non_archived: boolean
+#     my_reaction_emoji: string
 #
 class MergeRequestsFinder < IssuableFinder
   def klass

changelogs/unreleased/issue-api-my-reaction.yml

 ---
-title: Add my_reaction_emoji param to /issues API
+title: Add my_reaction_emoji param to /issues and /merge_requests API
 merge_request: 14016
 author: Hiroyuki Sato
 type: added

doc/api/merge_requests.md

@@ -22,24 +22,26 @@ GET /merge_requests?state=all
 GET /merge_requests?milestone=release
 GET /merge_requests?labels=bug,reproduced
 GET /merge_requests?author_id=5
+GET /merge_requests?my_reaction_emoji=star
 GET /merge_requests?scope=assigned-to-me
 ```
 
 Parameters:
 
-| Attribute | Type | Required | Description |
-| --------- | ---- | -------- | ----------- |
-| `state`   | string  | no    | Return all merge requests or just those that are `opened`, `closed`, or `merged`|
-| `order_by`| string  | no    | Return requests ordered by `created_at` or `updated_at` fields. Default is `created_at` |
-| `sort`    | string  | no    | Return requests sorted in `asc` or `desc` order. Default is `desc`  |
-| `milestone`  | string  | no | Return merge requests for a specific milestone |
-| `view` | string | no | If `simple`, returns the `iid`, URL, title, description, and basic state of merge request |
-| `labels`  | string  | no | Return merge requests matching a comma separated list of labels |
-| `created_after` | datetime | no | Return merge requests created after the given time (inclusive) |
-| `created_before` | datetime | no | Return merge requests created before the given time (inclusive) |
-| `scope` | string | no | Return merge requests for the given scope: `created-by-me`, `assigned-to-me` or `all`. Defaults to `created-by-me` |
-| `author_id` | integer | no | Returns merge requests created by the given user `id`. Combine with `scope=all` or `scope=assigned-to-me` |
-| `assignee_id` | integer | no | Returns merge requests assigned to the given user `id` |
+| Attribute           | Type     | Required | Description                                                                                                            |
+| ------------------- | -------- | -------- | ---------------------------------------------------------------------------------------------------------------------- |
+| `state`             | string   | no       | Return all merge requests or just those that are `opened`, `closed`, or `merged`                                       |
+| `order_by`          | string   | no       | Return requests ordered by `created_at` or `updated_at` fields. Default is `created_at`                                |
+| `sort`              | string   | no       | Return requests sorted in `asc` or `desc` order. Default is `desc`                                                     |
+| `milestone`         | string   | no       | Return merge requests for a specific milestone                                                                         |
+| `view`              | string   | no       | If `simple`, returns the `iid`, URL, title, description, and basic state of merge request                              |
+| `labels`            | string   | no       | Return merge requests matching a comma separated list of labels                                                        |
+| `created_after`     | datetime | no       | Return merge requests created after the given time (inclusive)                                                         |
+| `created_before`    | datetime | no       | Return merge requests created before the given time (inclusive)                                                        |
+| `scope`             | string   | no       | Return merge requests for the given scope: `created-by-me`, `assigned-to-me` or `all`. Defaults to `created-by-me`     |
+| `author_id`         | integer  | no       | Returns merge requests created by the given user `id`. Combine with `scope=all` or `scope=assigned-to-me`              |
+| `assignee_id`       | integer  | no       | Returns merge requests assigned to the given user `id`                                                                 |
+| `my_reaction_emoji` | string   | no       | Return merge requests reacted by the authenticated user by the given emoji ` _([Introduced][ce-14016] in GitLab 10.0)_ |
 
 ```json
 [
@@ -116,6 +118,7 @@ GET /projects/:id/merge_requests?state=all
 GET /projects/:id/merge_requests?iids[]=42&iids[]=43
 GET /projects/:id/merge_requests?milestone=release
 GET /projects/:id/merge_requests?labels=bug,reproduced
+GET /projects/:id/merge_requests?my_reaction_emoji=star
 ```
 
 Parameters:
@@ -135,6 +138,7 @@ Parameters:
 | `scope` | string | no | Return merge requests for the given scope: `created-by-me`, `assigned-to-me` or `all` _([Introduced][ce-13060] in GitLab 9.5)_ |
 | `author_id` | integer | no | Returns merge requests created by the given user `id` _([Introduced][ce-13060] in GitLab 9.5)_ |
 | `assignee_id` | integer | no | Returns merge requests assigned to the given user `id` _([Introduced][ce-13060] in GitLab 9.5)_ |
+| `my_reaction_emoji` | string           | no         | Return merge requests reacted by the authenticated user by the given emoji ` _([Introduced][ce-14016] in GitLab 10.0)_                                      |
 
 ```json
 [

lib/api/merge_requests.rb

@@ -40,6 +40,7 @@ module API
         optional :assignee_id, type: Integer, desc: 'Return merge requests which are assigned to the user with the given ID'
         optional :scope, type: String, values: %w[created-by-me assigned-to-me all],
                          desc: 'Return merge requests for the given scope: `created-by-me`, `assigned-to-me` or `all`'
+        optional :my_reaction_emoji, type: String, desc: 'Return issues reacted by the authenticated user by the given emoji'
         use :pagination
       end
     end

spec/requests/api/merge_requests_spec.rb

@@ -117,6 +117,18 @@ describe API::MergeRequests do
         expect(json_response.length).to eq(1)
         expect(json_response.first['id']).to eq(merge_request3.id)
       end
+
+      it 'returns merge requests reacted by the authenticated user by the given emoji' do
+        merge_request3 = create(:merge_request, :simple, author: user, assignee: user, source_project: project2, target_project: project2, source_branch: 'other-branch')
+        award_emoji = create(:award_emoji, awardable: merge_request3, user: user2, name: 'star')
+
+        get api('/merge_requests', user2), my_reaction_emoji: award_emoji.name, scope: 'all'
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['id']).to eq(merge_request3.id)
+      end
     end
   end