Expose web_url and web_path board fields

These fields can be used to get Web UI url/path for a board.

app/graphql/types/board_type.rb

@@ -7,6 +7,8 @@ module Types
     accepts ::Board
     authorize :read_board
 
+    present_using BoardPresenter
+
     field :id, type: GraphQL::ID_TYPE, null: false,
           description: 'ID (global ID) of the board'
     field :name, type: GraphQL::STRING_TYPE, null: true,
@@ -24,6 +26,12 @@ module Types
           description: 'Lists of the board',
           resolver: Resolvers::BoardListsResolver,
           extras: [:lookahead]
+
+    field :web_path, GraphQL::STRING_TYPE, null: false,
+          description: 'Web path of the board.'
+
+    field :web_url, GraphQL::STRING_TYPE, null: false,
+          description: 'Web URL of the board.'
   end
 end
 

app/presenters/board_presenter.rb

+# frozen_string_literal: true
+
+class BoardPresenter < Gitlab::View::Presenter::Delegated
+  presents :board
+end

changelogs/unreleased/add_boards_url.yml

+---
+title: Exposed web_path and web_url fields in Board's GraphQL API
+merge_request: 50947
+author:
+type: added

doc/api/graphql/reference/gitlab_schema.graphql

@@ -1380,6 +1380,16 @@ type Board {
   """
   name: String
 
+  """
+  Web path of the board.
+  """
+  webPath: String!
+
+  """
+  Web URL of the board.
+  """
+  webUrl: String!
+
   """
   Weight of the board
   """

doc/api/graphql/reference/gitlab_schema.json

@@ -3637,6 +3637,42 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "webPath",
+              "description": "Web path of the board.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "webUrl",
+              "description": "Web URL of the board.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "weight",
               "description": "Weight of the board",

doc/api/graphql/reference/index.md

@@ -252,6 +252,8 @@ Represents a project or group board.
 | `lists` | BoardListConnection | Lists of the board |
 | `milestone` | Milestone | The board milestone |
 | `name` | String | Name of the board |
+| `webPath` | String! | Web path of the board. |
+| `webUrl` | String! | Web URL of the board. |
 | `weight` | Int | Weight of the board |
 
 ### BoardEpic

lib/gitlab/url_builder.rb

@@ -18,6 +18,8 @@ module Gitlab
       def build(object, **options)
         # Objects are sometimes wrapped in a BatchLoader instance
         case object.itself
+        when Board
+          board_url(object, **options)
         when ::Ci::Build
           instance.project_job_url(object.project, object, **options)
         when Commit
@@ -52,6 +54,14 @@ module Gitlab
       end
       # rubocop:enable Metrics/CyclomaticComplexity
 
+      def board_url(board, **options)
+        if board.project_board?
+          instance.project_board_url(board.resource_parent, board, **options)
+        else
+          instance.group_board_url(board.resource_parent, board, **options)
+        end
+      end
+
       def commit_url(commit, **options)
         return '' unless commit.project
 

spec/factories/boards.rb

@@ -31,4 +31,8 @@ FactoryBot.define do
       board.lists.create!(list_type: :closed)
     end
   end
+
+  factory :group_board, parent: :board do
+    group
+  end
 end

spec/graphql/types/board_type_spec.rb

@@ -8,7 +8,7 @@ RSpec.describe GitlabSchema.types['Board'] do
   specify { expect(described_class).to require_graphql_authorizations(:read_board) }
 
   it 'has specific fields' do
-    expected_fields = %w[id name]
+    expected_fields = %w[id name web_url web_path]
 
     expect(described_class).to include_graphql_fields(*expected_fields)
   end

spec/lib/gitlab/url_builder_spec.rb

@@ -18,6 +18,8 @@ RSpec.describe Gitlab::UrlBuilder do
 
     where(:factory, :path_generator) do
       :project           | ->(project)       { "/#{project.full_path}" }
+      :board             | ->(board)         { "/#{board.project.full_path}/-/boards/#{board.id}" }
+      :group_board       | ->(board)         { "/groups/#{board.group.full_path}/-/boards/#{board.id}" }
       :commit            | ->(commit)        { "/#{commit.project.full_path}/-/commit/#{commit.id}" }
       :issue             | ->(issue)         { "/#{issue.project.full_path}/-/issues/#{issue.iid}" }
       :merge_request     | ->(merge_request) { "/#{merge_request.project.full_path}/-/merge_requests/#{merge_request.iid}" }