Merge branch '229838-create-issue-graphql' into 'master'

Add graphql mutation to create an issue

See merge request gitlab-org/gitlab!43735

app/graphql/mutations/issues/common_mutation_arguments.rb

+# frozen_string_literal: true
+
+module Mutations
+  module Issues
+    module CommonMutationArguments
+      extend ActiveSupport::Concern
+
+      included do
+        argument :description, GraphQL::STRING_TYPE,
+                 required: false,
+                 description: copy_field_description(Types::IssueType, :description)
+
+        argument :due_date, GraphQL::Types::ISO8601Date,
+                 required: false,
+                 description: copy_field_description(Types::IssueType, :due_date)
+
+        argument :confidential, GraphQL::BOOLEAN_TYPE,
+                 required: false,
+                 description: copy_field_description(Types::IssueType, :confidential)
+
+        argument :locked, GraphQL::BOOLEAN_TYPE,
+                 as: :discussion_locked,
+                 required: false,
+                 description: copy_field_description(Types::IssueType, :discussion_locked)
+      end
+    end
+  end
+end
+
+Mutations::Issues::CommonMutationArguments.prepend_if_ee('::EE::Mutations::Issues::CommonMutationArguments')

app/graphql/mutations/issues/create.rb

+# frozen_string_literal: true
+
+module Mutations
+  module Issues
+    class Create < BaseMutation
+      include ResolvesProject
+      graphql_name 'CreateIssue'
+
+      authorize :create_issue
+
+      include CommonMutationArguments
+
+      argument :project_path, GraphQL::ID_TYPE,
+               required: true,
+               description: 'Project full path the issue is associated with'
+
+      argument :iid, GraphQL::INT_TYPE,
+               required: false,
+               description: 'The IID (internal ID) of a project issue. Only admins and project owners can modify'
+
+      argument :title, GraphQL::STRING_TYPE,
+               required: true,
+               description: copy_field_description(Types::IssueType, :title)
+
+      argument :milestone_id, ::Types::GlobalIDType[::Milestone],
+               required: false,
+               description: 'The ID of the milestone to assign to the issue. On update milestone will be removed if set to null'
+
+      argument :labels, [GraphQL::STRING_TYPE],
+               required: false,
+               description: copy_field_description(Types::IssueType, :labels)
+
+      argument :label_ids, [::Types::GlobalIDType[::Label]],
+               required: false,
+               description: 'The IDs of labels to be added to the issue'
+
+      argument :created_at, Types::TimeType,
+               required: false,
+               description: 'Timestamp when the issue was created. Available only for admins and project owners'
+
+      argument :merge_request_to_resolve_discussions_of, ::Types::GlobalIDType[::MergeRequest],
+               required: false,
+               description: 'The IID of a merge request for which to resolve discussions'
+
+      argument :discussion_to_resolve, GraphQL::STRING_TYPE,
+               required: false,
+               description: 'The ID of a discussion to resolve. Also pass `merge_request_to_resolve_discussions_of`'
+
+      argument :assignee_ids, [::Types::GlobalIDType[::User]],
+               required: false,
+               description: 'The array of user IDs to assign to the issue'
+
+      field :issue,
+            Types::IssueType,
+            null: true,
+            description: 'The issue after mutation'
+
+      def ready?(**args)
+        if args.slice(*mutually_exclusive_label_args).size > 1
+          arg_str = mutually_exclusive_label_args.map { |x| x.to_s.camelize(:lower) }.join(' or ')
+          raise Gitlab::Graphql::Errors::ArgumentError, "one and only one of #{arg_str} is required."
+        end
+
+        if args[:discussion_to_resolve].present? && args[:merge_request_to_resolve_discussions_of].blank?
+          raise Gitlab::Graphql::Errors::ArgumentError,
+                'to resolve a discussion please also provide `merge_request_to_resolve_discussions_of` parameter'
+        end
+
+        super
+      end
+
+      def resolve(project_path:, **attributes)
+        project = authorized_find!(full_path: project_path)
+        params = build_create_issue_params(attributes.merge(author_id: current_user.id))
+
+        issue = ::Issues::CreateService.new(project, current_user, params).execute
+
+        if issue.spam?
+          issue.errors.add(:base, 'Spam detected.')
+        end
+
+        {
+          issue: issue.valid? ? issue : nil,
+          errors: errors_on_object(issue)
+        }
+      end
+
+      private
+
+      def build_create_issue_params(params)
+        params[:milestone_id] &&= params[:milestone_id]&.model_id
+        params[:assignee_ids] &&= params[:assignee_ids].map { |assignee_id| assignee_id&.model_id }
+        params[:label_ids] &&= params[:label_ids].map { |label_id| label_id&.model_id }
+
+        params
+      end
+
+      def mutually_exclusive_label_args
+        [:labels, :label_ids]
+      end
+
+      def find_object(full_path:)
+        resolve_project(full_path: full_path)
+      end
+    end
+  end
+end
+
+Mutations::Issues::Create.prepend_if_ee('::EE::Mutations::Issues::Create')

app/graphql/mutations/issues/update.rb

@@ -5,49 +5,26 @@ module Mutations
     class Update < Base
       graphql_name 'UpdateIssue'
 
-      argument :title,
-                GraphQL::STRING_TYPE,
-                required: false,
-                description: copy_field_description(Types::IssueType, :title)
+      include CommonMutationArguments
 
-      argument :description,
-                GraphQL::STRING_TYPE,
-                required: false,
-                description: copy_field_description(Types::IssueType, :description)
-
-      argument :due_date,
-               Types::TimeType,
-               required: false,
-               description: copy_field_description(Types::IssueType, :due_date)
-
-      argument :confidential,
-               GraphQL::BOOLEAN_TYPE,
-               required: false,
-               description: copy_field_description(Types::IssueType, :confidential)
-
-      argument :locked,
-               GraphQL::BOOLEAN_TYPE,
-               as: :discussion_locked,
+      argument :title, GraphQL::STRING_TYPE,
                required: false,
-               description: copy_field_description(Types::IssueType, :discussion_locked)
+               description: copy_field_description(Types::IssueType, :title)
 
-      argument :add_label_ids,
-               [GraphQL::ID_TYPE],
+      argument :milestone_id, GraphQL::ID_TYPE,
                required: false,
-               description: 'The IDs of labels to be added to the issue.'
+               description: 'The ID of the milestone to assign to the issue. On update milestone will be removed if set to null'
 
-      argument :remove_label_ids,
-               [GraphQL::ID_TYPE],
+      argument :add_label_ids, [GraphQL::ID_TYPE],
                required: false,
-               description: 'The IDs of labels to be removed from the issue.'
+               description: 'The IDs of labels to be added to the issue'
 
-      argument :milestone_id,
-               GraphQL::ID_TYPE,
+      argument :remove_label_ids, [GraphQL::ID_TYPE],
                required: false,
-               description: 'The ID of the milestone to be assigned, milestone will be removed if set to null.'
+               description: 'The IDs of labels to be removed from the issue'
 
       argument :state_event, Types::IssueStateEventEnum,
-               description: 'Close or reopen an issue.',
+               description: 'Close or reopen an issue',
                required: false
 
       def resolve(project_path:, iid:, **args)

app/graphql/types/mutation_type.rb

@@ -23,6 +23,7 @@ module Types
     mount_mutation Mutations::Branches::Create, calls_gitaly: true
     mount_mutation Mutations::Commits::Create, calls_gitaly: true
     mount_mutation Mutations::Discussions::ToggleResolve
+    mount_mutation Mutations::Issues::Create
     mount_mutation Mutations::Issues::SetAssignees
     mount_mutation Mutations::Issues::SetConfidential
     mount_mutation Mutations::Issues::SetLocked

app/services/issues/base_service.rb

@@ -34,6 +34,18 @@ module Issues
 
     private
 
+    def filter_params(merge_request)
+      super
+
+      moved_issue = params.delete(:moved_issue)
+
+      # Setting created_at, updated_at and iid is allowed only for admins and owners or
+      # when moving an issue as we preserve the original issue attributes except id and iid.
+      params.delete(:iid) unless current_user.can?(:set_issue_iid, project)
+      params.delete(:created_at) unless moved_issue || current_user.can?(:set_issue_created_at, project)
+      params.delete(:updated_at) unless moved_issue || current_user.can?(:set_issue_updated_at, project)
+    end
+
     def create_assignee_note(issue, old_assignees)
       SystemNoteService.change_issuable_assignees(
         issue, issue.project, current_user, old_assignees)

app/services/issues/move_service.rb

@@ -52,7 +52,8 @@ module Issues
                      iid: nil,
                      project: target_project,
                      author: original_entity.author,
-                     assignee_ids: original_entity.assignee_ids
+                     assignee_ids: original_entity.assignee_ids,
+                     moved_issue: true
                    }
 
       new_params = original_entity.serializable_hash.symbolize_keys.merge(new_params)

changelogs/unreleased/229838-create-issue-graphql.yml

+---
+title: Add GraphQL mutation to create an issue
+merge_request: 43735
+author:
+type: added

doc/api/graphql/reference/gitlab_schema.graphql

@@ -3422,6 +3422,111 @@ type CreateImageDiffNotePayload {
   note: Note
 }
 
+"""
+Autogenerated input type of CreateIssue
+"""
+input CreateIssueInput {
+  """
+  The array of user IDs to assign to the issue
+  """
+  assigneeIds: [UserID!]
+
+  """
+  A unique identifier for the client performing the mutation.
+  """
+  clientMutationId: String
+
+  """
+  Indicates the issue is confidential
+  """
+  confidential: Boolean
+
+  """
+  Timestamp when the issue was created. Available only for admins and project owners
+  """
+  createdAt: Time
+
+  """
+  Description of the issue
+  """
+  description: String
+
+  """
+  The ID of a discussion to resolve. Also pass `merge_request_to_resolve_discussions_of`
+  """
+  discussionToResolve: String
+
+  """
+  Due date of the issue
+  """
+  dueDate: ISO8601Date
+
+  """
+  The ID of an epic to associate the issue with
+  """
+  epicId: EpicID
+
+  """
+  The IID (internal ID) of a project issue. Only admins and project owners can modify
+  """
+  iid: Int
+
+  """
+  The IDs of labels to be added to the issue
+  """
+  labelIds: [LabelID!]
+
+  """
+  Labels of the issue
+  """
+  labels: [String!]
+
+  """
+  Indicates discussion is locked on the issue
+  """
+  locked: Boolean
+
+  """
+  The IID of a merge request for which to resolve discussions
+  """
+  mergeRequestToResolveDiscussionsOf: MergeRequestID
+
+  """
+  The ID of the milestone to assign to the issue. On update milestone will be removed if set to null
+  """
+  milestoneId: MilestoneID
+
+  """
+  Project full path the issue is associated with
+  """
+  projectPath: ID!
+
+  """
+  Title of the issue
+  """
+  title: String!
+}
+
+"""
+Autogenerated return type of CreateIssue
+"""
+type CreateIssuePayload {
+  """
+  A unique identifier for the client performing the mutation.
+  """
+  clientMutationId: String
+
+  """
+  Errors encountered during execution of the mutation.
+  """
+  errors: [String!]!
+
+  """
+  The issue after mutation
+  """
+  issue: Issue
+}
+
 """
 Autogenerated input type of CreateIteration
 """
@@ -11188,6 +11293,11 @@ type MergeRequestEdge {
   node: MergeRequest
 }
 
+"""
+Identifier of MergeRequest
+"""
+scalar MergeRequestID
+
 """
 Check permissions for the current user on a merge request
 """
@@ -11964,6 +12074,7 @@ type Mutation {
   createDiffNote(input: CreateDiffNoteInput!): CreateDiffNotePayload
   createEpic(input: CreateEpicInput!): CreateEpicPayload
   createImageDiffNote(input: CreateImageDiffNoteInput!): CreateImageDiffNotePayload
+  createIssue(input: CreateIssueInput!): CreateIssuePayload
   createIteration(input: CreateIterationInput!): CreateIterationPayload
   createNote(input: CreateNoteInput!): CreateNotePayload
   createRequirement(input: CreateRequirementInput!): CreateRequirementPayload
@@ -19452,7 +19563,7 @@ Autogenerated input type of UpdateIssue
 """
 input UpdateIssueInput {
   """
-  The IDs of labels to be added to the issue.
+  The IDs of labels to be added to the issue
   """
   addLabelIds: [ID!]
 
@@ -19474,18 +19585,13 @@ input UpdateIssueInput {
   """
   Due date of the issue
   """
-  dueDate: Time
+  dueDate: ISO8601Date
 
   """
   The ID of the parent epic. NULL when removing the association
   """
   epicId: ID
 
-  """
-  The desired health status
-  """
-  healthStatus: HealthStatus
-
   """
   The IID of the issue to mutate
   """
@@ -19497,7 +19603,7 @@ input UpdateIssueInput {
   locked: Boolean
 
   """
-  The ID of the milestone to be assigned, milestone will be removed if set to null.
+  The ID of the milestone to assign to the issue. On update milestone will be removed if set to null
   """
   milestoneId: ID
 
@@ -19507,12 +19613,12 @@ input UpdateIssueInput {
   projectPath: ID!
 
   """
-  The IDs of labels to be removed from the issue.
+  The IDs of labels to be removed from the issue
   """
   removeLabelIds: [ID!]
 
   """
-  Close or reopen an issue.
+  Close or reopen an issue
   """
   stateEvent: IssueStateEvent
 

doc/api/graphql/reference/gitlab_schema.json

@@ -9188,6 +9188,276 @@
           "enumValues": null,
           "possibleTypes": null
         },
+        {
+          "kind": "INPUT_OBJECT",
+          "name": "CreateIssueInput",
+          "description": "Autogenerated input type of CreateIssue",
+          "fields": null,
+          "inputFields": [
+            {
+              "name": "description",
+              "description": "Description of the issue",
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "dueDate",
+              "description": "Due date of the issue",
+              "type": {
+                "kind": "SCALAR",
+                "name": "ISO8601Date",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "confidential",
+              "description": "Indicates the issue is confidential",
+              "type": {
+                "kind": "SCALAR",
+                "name": "Boolean",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "locked",
+              "description": "Indicates discussion is locked on the issue",
+              "type": {
+                "kind": "SCALAR",
+                "name": "Boolean",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "projectPath",
+              "description": "Project full path the issue is associated with",
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "ID",
+                  "ofType": null
+                }
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "iid",
+              "description": "The IID (internal ID) of a project issue. Only admins and project owners can modify",
+              "type": {
+                "kind": "SCALAR",
+                "name": "Int",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "title",
+              "description": "Title of the issue",
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "milestoneId",
+              "description": "The ID of the milestone to assign to the issue. On update milestone will be removed if set to null",
+              "type": {
+                "kind": "SCALAR",
+                "name": "MilestoneID",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "labels",
+              "description": "Labels of the issue",
+              "type": {
+                "kind": "LIST",
+                "name": null,
+                "ofType": {
+                  "kind": "NON_NULL",
+                  "name": null,
+                  "ofType": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  }
+                }
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "labelIds",
+              "description": "The IDs of labels to be added to the issue",
+              "type": {
+                "kind": "LIST",
+                "name": null,
+                "ofType": {
+                  "kind": "NON_NULL",
+                  "name": null,
+                  "ofType": {
+                    "kind": "SCALAR",
+                    "name": "LabelID",
+                    "ofType": null
+                  }
+                }
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "createdAt",
+              "description": "Timestamp when the issue was created. Available only for admins and project owners",
+              "type": {
+                "kind": "SCALAR",
+                "name": "Time",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "mergeRequestToResolveDiscussionsOf",
+              "description": "The IID of a merge request for which to resolve discussions",
+              "type": {
+                "kind": "SCALAR",
+                "name": "MergeRequestID",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "discussionToResolve",
+              "description": "The ID of a discussion to resolve. Also pass `merge_request_to_resolve_discussions_of`",
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "assigneeIds",
+              "description": "The array of user IDs to assign to the issue",
+              "type": {
+                "kind": "LIST",
+                "name": null,
+                "ofType": {
+                  "kind": "NON_NULL",
+                  "name": null,
+                  "ofType": {
+                    "kind": "SCALAR",
+                    "name": "UserID",
+                    "ofType": null
+                  }
+                }
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "epicId",
+              "description": "The ID of an epic to associate the issue with",
+              "type": {
+                "kind": "SCALAR",
+                "name": "EpicID",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "clientMutationId",
+              "description": "A unique identifier for the client performing the mutation.",
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "defaultValue": null
+            }
+          ],
+          "interfaces": null,
+          "enumValues": null,
+          "possibleTypes": null
+        },
+        {
+          "kind": "OBJECT",
+          "name": "CreateIssuePayload",
+          "description": "Autogenerated return type of CreateIssue",
+          "fields": [
+            {
+              "name": "clientMutationId",
+              "description": "A unique identifier for the client performing the mutation.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "errors",
+              "description": "Errors encountered during execution of the mutation.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "LIST",
+                  "name": null,
+                  "ofType": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "SCALAR",
+                      "name": "String",
+                      "ofType": null
+                    }
+                  }
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "issue",
+              "description": "The issue after mutation",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "Issue",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
         {
           "kind": "INPUT_OBJECT",
           "name": "CreateIterationInput",
@@ -30673,6 +30943,16 @@
           "enumValues": null,
           "possibleTypes": null
         },
+        {
+          "kind": "SCALAR",
+          "name": "MergeRequestID",
+          "description": "Identifier of MergeRequest",
+          "fields": null,
+          "inputFields": null,
+          "interfaces": null,
+          "enumValues": null,
+          "possibleTypes": null
+        },
         {
           "kind": "OBJECT",
           "name": "MergeRequestPermissions",
@@ -33420,6 +33700,33 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "createIssue",
+              "description": null,
+              "args": [
+                {
+                  "name": "input",
+                  "description": null,
+                  "type": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "INPUT_OBJECT",
+                      "name": "CreateIssueInput",
+                      "ofType": null
+                    }
+                  },
+                  "defaultValue": null
+                }
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "CreateIssuePayload",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "createIteration",
               "description": null,
@@ -56495,16 +56802,6 @@
               },
               "defaultValue": null
             },
-            {
-              "name": "title",
-              "description": "Title of the issue",
-              "type": {
-                "kind": "SCALAR",
-                "name": "String",
-                "ofType": null
-              },
-              "defaultValue": null
-            },
             {
               "name": "description",
               "description": "Description of the issue",
@@ -56520,7 +56817,7 @@
               "description": "Due date of the issue",
               "type": {
                 "kind": "SCALAR",
-                "name": "Time",
+                "name": "ISO8601Date",
                 "ofType": null
               },
               "defaultValue": null
@@ -56545,9 +56842,29 @@
               },
               "defaultValue": null
             },
+            {
+              "name": "title",
+              "description": "Title of the issue",
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "milestoneId",
+              "description": "The ID of the milestone to assign to the issue. On update milestone will be removed if set to null",
+              "type": {
+                "kind": "SCALAR",
+                "name": "ID",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
             {
               "name": "addLabelIds",
-              "description": "The IDs of labels to be added to the issue.",
+              "description": "The IDs of labels to be added to the issue",
               "type": {
                 "kind": "LIST",
                 "name": null,
@@ -56565,7 +56882,7 @@
             },
             {
               "name": "removeLabelIds",
-              "description": "The IDs of labels to be removed from the issue.",
+              "description": "The IDs of labels to be removed from the issue",
               "type": {
                 "kind": "LIST",
                 "name": null,
@@ -56581,19 +56898,9 @@
               },
               "defaultValue": null
             },
-            {
-              "name": "milestoneId",
-              "description": "The ID of the milestone to be assigned, milestone will be removed if set to null.",
-              "type": {
-                "kind": "SCALAR",
-                "name": "ID",
-                "ofType": null
-              },
-              "defaultValue": null
-            },
             {
               "name": "stateEvent",
-              "description": "Close or reopen an issue.",
+              "description": "Close or reopen an issue",
               "type": {
                 "kind": "ENUM",
                 "name": "IssueStateEvent",
@@ -56601,16 +56908,6 @@
               },
               "defaultValue": null
             },
-            {
-              "name": "healthStatus",
-              "description": "The desired health status",
-              "type": {
-                "kind": "ENUM",
-                "name": "HealthStatus",
-                "ofType": null
-              },
-              "defaultValue": null
-            },
             {
               "name": "epicId",
               "description": "The ID of the parent epic. NULL when removing the association",

doc/api/graphql/reference/index.md

@@ -537,6 +537,16 @@ Autogenerated return type of CreateImageDiffNote.
 | `errors` | String! => Array | Errors encountered during execution of the mutation. |
 | `note` | Note | The note after mutation |
 
+### CreateIssuePayload
+
+Autogenerated return type of CreateIssue.
+
+| Field | Type | Description |
+| ----- | ---- | ----------- |
+| `clientMutationId` | String | A unique identifier for the client performing the mutation. |
+| `errors` | String! => Array | Errors encountered during execution of the mutation. |
+| `issue` | Issue | The issue after mutation |
+
 ### CreateIterationPayload
 
 Autogenerated return type of CreateIteration.

ee/app/graphql/ee/mutations/issues/common_mutation_arguments.rb

+# frozen_string_literal: true
+
+module EE
+  module Mutations
+    module Issues
+      module CommonMutationArguments
+        extend ActiveSupport::Concern
+
+        included do
+          argument :health_status,
+                   ::Types::HealthStatusEnum,
+                   required: false,
+                   description: 'The desired health status'
+
+          argument :weight, GraphQL::INT_TYPE,
+                   required: false,
+                   description: 'The weight of the issue'
+        end
+      end
+    end
+  end
+end

ee/app/graphql/ee/mutations/issues/create.rb

+# frozen_string_literal: true
+
+module EE
+  module Mutations
+    module Issues
+      module Create
+        extend ActiveSupport::Concern
+
+        prepended do
+          argument :epic_id, ::Types::GlobalIDType[::Epic],
+                   required: false,
+                   description: 'The ID of an epic to associate the issue with'
+        end
+
+        private
+
+        def create_issue_params(params)
+          params[:epic_id] &&= params[:epic_id]&.model_id
+
+          super(params)
+        end
+      end
+    end
+  end
+end

ee/app/graphql/ee/mutations/issues/update.rb

@@ -7,12 +7,7 @@ module EE
         extend ActiveSupport::Concern
 
         prepended do
-          argument :health_status,
-                   ::Types::HealthStatusEnum,
-                   required: false,
-                   description: 'The desired health status'
-          argument :epic_id,
-                   GraphQL::ID_TYPE,
+          argument :epic_id, GraphQL::ID_TYPE,
                    required: false,
                    description: 'The ID of the parent epic. NULL when removing the association'
         end

ee/spec/graphql/mutations/issues/create_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Mutations::Issues::Create do
+  let_it_be(:project) { create(:project) }
+  let_it_be(:user) { create(:user) }
+  let_it_be(:assignee1) { create(:user) }
+  let_it_be(:assignee2) { create(:user) }
+
+  let(:expected_attributes) do
+    {
+      title: 'new title',
+      description: 'new description',
+      confidential: true,
+      due_date: Date.tomorrow,
+      discussion_locked: true,
+      weight: 10
+    }
+  end
+
+  let(:mutation_params) do
+    {
+      project_path: project.full_path,
+      assignee_ids: [assignee1.to_global_id, assignee2.to_global_id],
+      health_status: Issue.health_statuses[:at_risk]
+    }.merge(expected_attributes)
+  end
+
+  let(:mutation) { described_class.new(object: nil, context: { current_user: user }, field: nil) }
+  let(:mutated_issue) { subject[:issue] }
+
+  specify { expect(described_class).to require_graphql_authorizations(:create_issue) }
+
+  describe '#resolve' do
+    before do
+      project.add_guest(assignee1)
+      project.add_guest(assignee2)
+      stub_licensed_features(issuable_health_status: true)
+    end
+
+    subject { mutation.resolve(mutation_params) }
+
+    context 'when user can create issues' do
+      before do
+        project.add_developer(user)
+      end
+
+      it 'creates issue with correct EE values' do
+        expect(mutated_issue).to have_attributes(expected_attributes)
+        expect(mutated_issue.assignees.pluck(:id)).to eq([assignee1.id, assignee2.id])
+        expect(mutated_issue.health_status).to eq('at_risk')
+      end
+    end
+  end
+end

ee/spec/graphql/mutations/issues/update_spec.rb

@@ -16,7 +16,15 @@ RSpec.describe Mutations::Issues::Update do
     let_it_be(:epic) { create(:epic, group: group) }
 
     let(:epic_id) { epic.to_global_id.to_s }
-    let(:params) { { project_path: project.full_path, iid: issue.iid, epic_id: epic_id } }
+    let(:params) do
+      {
+        project_path: project.full_path,
+        iid: issue.iid,
+        epic_id: epic_id,
+        weight: 10
+      }
+    end
+
     let(:mutated_issue) { subject[:issue] }
     let(:mutation) { described_class.new(object: nil, context: { current_user: user }, field: nil) }
 
@@ -53,6 +61,7 @@ RSpec.describe Mutations::Issues::Update do
 
           it 'returns the updated issue' do
             expect(mutated_issue.epic).to eq(epic)
+            expect(mutated_issue.weight).to eq(10)
           end
         end
 

lib/api/issues.rb

@@ -231,9 +231,6 @@ module API
 
         authorize! :create_issue, user_project
 
-        params.delete(:created_at) unless current_user.can?(:set_issue_created_at, user_project)
-        params.delete(:iid) unless current_user.can?(:set_issue_iid, user_project)
-
         issue_params = declared_params(include_missing: false)
         issue_params[:system_note_timestamp] = params[:created_at]
 
@@ -279,8 +276,6 @@ module API
         issue = user_project.issues.find_by!(iid: params.delete(:issue_iid))
         authorize! :update_issue, issue
 
-        # Setting updated_at is allowed only for admins and owners
-        params.delete(:updated_at) unless current_user.can?(:set_issue_updated_at, user_project)
         issue.system_note_timestamp = params[:updated_at]
 
         update_params = declared_params(include_missing: false).merge(request: request, api: true)

spec/graphql/mutations/issues/create_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Mutations::Issues::Create do
+  let_it_be(:project) { create(:project) }
+  let_it_be(:user) { create(:user) }
+  let_it_be(:assignee1) { create(:user) }
+  let_it_be(:assignee2) { create(:user) }
+  let_it_be(:project_label1) { create(:label, project: project) }
+  let_it_be(:project_label2) { create(:label, project: project) }
+  let_it_be(:milestone) { create(:milestone, project: project) }
+  let_it_be(:new_label1) { FFaker::Lorem.word }
+  let_it_be(:new_label2) { new_label1 + 'Extra' }
+
+  let(:expected_attributes) do
+    {
+      title: 'new title',
+      description: 'new description',
+      confidential: true,
+      due_date: Date.tomorrow,
+      discussion_locked: true
+    }
+  end
+
+  let(:mutation_params) do
+    {
+      project_path: project.full_path,
+      milestone_id: milestone.to_global_id,
+      labels: [project_label1.title, project_label2.title, new_label1, new_label2],
+      assignee_ids: [assignee1.to_global_id, assignee2.to_global_id]
+    }.merge(expected_attributes)
+  end
+
+  let(:special_params) do
+    {
+      iid: non_existing_record_id,
+      created_at: 2.days.ago
+    }
+  end
+
+  let(:mutation) { described_class.new(object: nil, context: { current_user: user }, field: nil) }
+  let(:mutated_issue) { subject[:issue] }
+
+  specify { expect(described_class).to require_graphql_authorizations(:create_issue) }
+
+  describe '#resolve' do
+    before do
+      stub_licensed_features(multiple_issue_assignees: false, issue_weights: false)
+      project.add_guest(assignee1)
+      project.add_guest(assignee2)
+    end
+
+    subject { mutation.resolve(mutation_params) }
+
+    context 'when the user does not have permission to create an issue' do
+      it 'raises an error' do
+        expect { subject }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable)
+      end
+    end
+
+    context 'when the user can create an issue' do
+      context 'when creating an issue a developer' do
+        before do
+          project.add_developer(user)
+        end
+
+        it 'creates issue with correct values' do
+          expect(mutated_issue).to have_attributes(expected_attributes)
+          expect(mutated_issue.milestone_id).to eq(milestone.id)
+          expect(mutated_issue.labels.pluck(:title)).to eq([project_label1.title, project_label2.title, new_label1, new_label2])
+          expect(mutated_issue.assignees.pluck(:id)).to eq([assignee1.id])
+        end
+
+        context 'when passing in label_ids' do
+          before do
+            mutation_params.delete(:labels)
+            mutation_params.merge!(label_ids: [project_label1.to_global_id, project_label2.to_global_id])
+          end
+
+          it 'creates issue with correct values' do
+            expect(mutated_issue.labels.pluck(:title)).to eq([project_label1.title, project_label2.title])
+          end
+        end
+
+        context 'when trying to create issue with restricted params' do
+          before do
+            mutation_params.merge!(special_params)
+          end
+
+          it 'ignores the special params' do
+            expect(mutated_issue).not_to be_like_time(special_params[:created_at])
+            expect(mutated_issue.iid).not_to eq(special_params[:iid])
+          end
+        end
+      end
+
+      context 'when creating an issue as owner' do
+        let_it_be(:user) { project.owner }
+
+        before do
+          mutation_params.merge!(special_params)
+        end
+
+        it 'sets the special params' do
+          expect(mutated_issue.created_at).to be_like_time(special_params[:created_at])
+          expect(mutated_issue.iid).to eq(special_params[:iid])
+        end
+      end
+    end
+  end
+
+  describe "#ready?" do
+    context 'when passing in both labels and label_ids' do
+      before do
+        mutation_params.merge!(label_ids: [project_label1.to_global_id, project_label2.to_global_id])
+      end
+
+      it 'raises exception when mutually exclusive params are given' do
+        expect { mutation.ready?(mutation_params) }
+          .to raise_error(Gitlab::Graphql::Errors::ArgumentError, /one and only one of/)
+      end
+    end
+
+    context 'when passing only `discussion_to_resolve` param' do
+      before do
+        mutation_params.merge!(discussion_to_resolve: 'abc')
+      end
+
+      it 'raises exception when mutually exclusive params are given' do
+        expect { mutation.ready?(mutation_params) }
+          .to raise_error(Gitlab::Graphql::Errors::ArgumentError, /to resolve a discussion please also provide `merge_request_to_resolve_discussions_of` parameter/)
+      end
+    end
+
+    context 'when passing only `merge_request_to_resolve_discussions_of` param' do
+      before do
+        mutation_params.merge!(merge_request_to_resolve_discussions_of: 'abc')
+      end
+
+      it 'raises exception when mutually exclusive params are given' do
+        expect { mutation.ready?(mutation_params) }.not_to raise_error
+      end
+    end
+  end
+end

spec/requests/api/graphql/mutations/issues/create_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Create an issue' do
+  include GraphqlHelpers
+
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:project) { create(:project) }
+  let_it_be(:assignee1) { create(:user) }
+  let_it_be(:assignee2) { create(:user) }
+  let_it_be(:project_label1) { create(:label, project: project) }
+  let_it_be(:project_label2) { create(:label, project: project) }
+  let_it_be(:milestone) { create(:milestone, project: project) }
+  let_it_be(:new_label1) { FFaker::Lorem.word }
+  let_it_be(:new_label2) { FFaker::Lorem.word }
+
+  let(:input) do
+    {
+      'title' => 'new title',
+      'description' => 'new description',
+      'confidential' => true,
+      'dueDate' => Date.tomorrow.strftime('%Y-%m-%d')
+    }
+  end
+
+  let(:mutation) { graphql_mutation(:createIssue, input.merge('projectPath' => project.full_path, 'locked' => true)) }
+
+  let(:mutation_response) { graphql_mutation_response(:create_issue) }
+
+  context 'the user is not allowed to create an issue' do
+    it_behaves_like 'a mutation that returns a top-level access error'
+  end
+
+  context 'when user has permissions to create an issue' do
+    before do
+      project.add_developer(current_user)
+    end
+
+    it 'updates the issue' do
+      post_graphql_mutation(mutation, current_user: current_user)
+
+      expect(response).to have_gitlab_http_status(:success)
+      expect(mutation_response['issue']).to include(input)
+      expect(mutation_response['issue']).to include('discussionLocked' => true)
+    end
+  end
+end

spec/requests/api/graphql/mutations/issues/update_spec.rb

@@ -10,13 +10,15 @@ RSpec.describe 'Update of an existing issue' do
   let_it_be(:issue) { create(:issue, project: project) }
   let(:input) do
     {
-      project_path: project.full_path,
-      iid: issue.iid.to_s,
-      locked: true
+      'iid' => issue.iid.to_s,
+      'title' => 'new title',
+      'description' => 'new description',
+      'confidential' => true,
+      'dueDate' => Date.tomorrow.strftime('%Y-%m-%d')
     }
   end
 
-  let(:mutation) { graphql_mutation(:update_issue, input) }
+  let(:mutation) { graphql_mutation(:update_issue, input.merge(project_path: project.full_path, locked: true)) }
   let(:mutation_response) { graphql_mutation_response(:update_issue) }
 
   context 'the user is not allowed to update issue' do
@@ -32,9 +34,8 @@ RSpec.describe 'Update of an existing issue' do
       post_graphql_mutation(mutation, current_user: current_user)
 
       expect(response).to have_gitlab_http_status(:success)
-      expect(mutation_response['issue']).to include(
-        'discussionLocked' => true
-      )
+      expect(mutation_response['issue']).to include(input)
+      expect(mutation_response['issue']).to include('discussionLocked' => true)
     end
   end
 end