WIP Sentry error list

- Add collection type
- Add global id to error
- Add errors resolver

app/graphql/resolvers/error_tracking/sentry_detailed_error_resolver.rb

@@ -8,7 +8,6 @@ module Resolvers
                 description: 'ID of the Sentry issue'
 
       def resolve(**args)
-        project = object
         current_user = context[:current_user]
         issue_id = GlobalID.parse(args[:id]).model_id
 
@@ -23,6 +22,14 @@ module Resolvers
 
         issue
       end
+
+      private
+
+      def project
+        return object.gitlab_project if object.respond_to?(:gitlab_project)
+
+        object
+      end
     end
   end
 end

app/graphql/resolvers/error_tracking/sentry_error_collection_resolver.rb

+# frozen_string_literal: true
+
+module Resolvers
+  module ErrorTracking
+    class SentryErrorCollectionResolver < BaseResolver
+      def resolve(**args)
+        project = object
+
+        service = ::ErrorTracking::ListIssuesService.new(
+          project,
+          context[:current_user]
+        )
+
+        Gitlab::ErrorTracking::ErrorCollection.new(
+          external_url: service.external_url,
+          project: project
+        )
+      end
+    end
+  end
+end

app/graphql/resolvers/error_tracking/sentry_errors_resolver.rb

+# frozen_string_literal: true
+
+module Resolvers
+  module ErrorTracking
+    class SentryErrorsResolver < BaseResolver
+      def resolve(**args)
+        args[:cursor] = args.delete(:after)
+        project = object.project
+
+        result = ::ErrorTracking::ListIssuesService.new(
+          project,
+          context[:current_user],
+          args
+        ).execute
+
+        next_cursor = result[:pagination]&.dig('next', 'cursor')
+        previous_cursor = result[:pagination]&.dig('previous', 'cursor')
+        issues = result[:issues]
+
+        # ReactiveCache is still fetching data
+        return if issues.nil?
+
+        Gitlab::Graphql::ExternallyPaginatedArray.new(previous_cursor, next_cursor, *issues)
+      end
+    end
+  end
+end

app/graphql/types/error_tracking/sentry_detailed_error_type.rb

@@ -4,8 +4,9 @@ module Types
   module ErrorTracking
     class SentryDetailedErrorType < ::Types::BaseObject
       graphql_name 'SentryDetailedError'
+      description 'A Sentry error.'
 
-      present_using SentryDetailedErrorPresenter
+      present_using SentryErrorPresenter
 
       authorize :read_sentry_issue
 
@@ -92,18 +93,6 @@ module Types
       field :tags, Types::ErrorTracking::SentryErrorTagsType,
             null: false,
             description: 'Tags associated with the Sentry Error'
-
-      def first_seen
-        DateTime.parse(object.first_seen)
-      end
-
-      def last_seen
-        DateTime.parse(object.last_seen)
-      end
-
-      def project_id
-        Gitlab::GlobalId.build(model_name: 'Project', id: object.project_id).to_s
-      end
     end
   end
 end

app/graphql/types/error_tracking/sentry_error_collection_type.rb

+# frozen_string_literal: true
+
+module Types
+  module ErrorTracking
+    class SentryErrorCollectionType < ::Types::BaseObject
+      graphql_name 'SentryErrorCollection'
+      description 'An object containing a collection of Sentry errors, and a detailed error.'
+
+      authorize :read_sentry_issue
+
+      field :errors,
+            Types::ErrorTracking::SentryErrorType.connection_type,
+            connection: false,
+            null: true,
+            description: "Collection of Sentry Errors",
+            extensions: [Gitlab::Graphql::Extensions::ExternallyPaginatedArrayExtension],
+            resolver: Resolvers::ErrorTracking::SentryErrorsResolver do
+              argument :search_term,
+                      String,
+                      description: 'Search term for the Sentry error.',
+                      required: false
+              argument :sort,
+                      String,
+                      description: 'Attribute to sort on. Options are frequency, first_seen, last_seen. last_seen is default.',
+                      required: false
+            end
+      field :detailed_error, Types::ErrorTracking::SentryDetailedErrorType,
+            null: true,
+            description: 'Detailed version of a Sentry error on the project',
+            resolver: Resolvers::ErrorTracking::SentryDetailedErrorResolver
+      field :external_url,
+            GraphQL::STRING_TYPE,
+            null: true,
+            description: "External URL for Sentry"
+    end
+  end
+end

app/graphql/types/error_tracking/sentry_error_type.rb

+# frozen_string_literal: true
+
+module Types
+  module ErrorTracking
+    # rubocop: disable Graphql/AuthorizeTypes
+    class SentryErrorType < ::Types::BaseObject
+      graphql_name 'SentryError'
+      description 'A Sentry error. A simplified version of SentryDetailedError.'
+
+      present_using SentryErrorPresenter
+
+      field :id, GraphQL::ID_TYPE,
+            null: false,
+            description: 'ID (global ID) of the error'
+      field :sentry_id, GraphQL::STRING_TYPE,
+            method: :id,
+            null: false,
+            description: 'ID (Sentry ID) of the error'
+      field :first_seen, Types::TimeType,
+            null: false,
+            description: 'Timestamp when the error was first seen'
+      field :last_seen, Types::TimeType,
+            null: false,
+            description: 'Timestamp when the error was last seen'
+      field :title, GraphQL::STRING_TYPE,
+            null: false,
+            description: 'Title of the error'
+      field :type, GraphQL::STRING_TYPE,
+            null: false,
+            description: 'Type of the error'
+      field :user_count, GraphQL::INT_TYPE,
+            null: false,
+            description: 'Count of users affected by the error'
+      field :count, GraphQL::INT_TYPE,
+            null: false,
+            description: 'Count of occurrences'
+      field :message, GraphQL::STRING_TYPE,
+            null: true,
+            description: 'Sentry metadata message of the error'
+      field :culprit, GraphQL::STRING_TYPE,
+            null: false,
+            description: 'Culprit of the error'
+      field :external_url, GraphQL::STRING_TYPE,
+            null: false,
+            description: 'External URL of the error'
+      field :short_id, GraphQL::STRING_TYPE,
+            null: false,
+            description: 'Short ID (Sentry ID) of the error'
+      field :status, Types::ErrorTracking::SentryErrorStatusEnum,
+            null: false,
+            description: 'Status of the error'
+      field :frequency, [Types::ErrorTracking::SentryErrorFrequencyType],
+            null: false,
+            description: 'Last 24hr stats of the error'
+      field :sentry_project_id, GraphQL::ID_TYPE,
+            method: :project_id,
+            null: false,
+            description: 'ID of the project (Sentry project)'
+      field :sentry_project_name, GraphQL::STRING_TYPE,
+            method: :project_name,
+            null: false,
+            description: 'Name of the project affected by the error'
+      field :sentry_project_slug, GraphQL::STRING_TYPE,
+            method: :project_slug,
+            null: false,
+            description: 'Slug of the project affected by the error'
+    end
+    # rubocop: enable Graphql/AuthorizeTypes
+  end
+end

app/graphql/types/project_type.rb

@@ -173,6 +173,12 @@ module Types
           null: true,
           description: 'Snippets of the project',
           resolver: Resolvers::Projects::SnippetsResolver
+
+    field :sentry_errors,
+          Types::ErrorTracking::SentryErrorCollectionType,
+          null: true,
+          description: 'Paginated collection of Sentry errors on the project',
+          resolver: Resolvers::ErrorTracking::SentryErrorCollectionResolver
   end
 end
 

app/policies/error_tracking/detailed_error_policy.rb → app/policies/error_tracking/base_policy.rb

 # frozen_string_literal: true
 
 module ErrorTracking
-  class DetailedErrorPolicy < BasePolicy
+  class BasePolicy < ::BasePolicy
     delegate { @subject.gitlab_project }
   end
 end

app/presenters/sentry_detailed_error_presenter.rb → app/presenters/sentry_error_presenter.rb

 # frozen_string_literal: true
 
-class SentryDetailedErrorPresenter < Gitlab::View::Presenter::Delegated
+class SentryErrorPresenter < Gitlab::View::Presenter::Delegated
   presents :error
 
   FrequencyStruct = Struct.new(:time, :count, keyword_init: true)
 
+  def first_seen
+    DateTime.parse(error.first_seen)
+  end
+
+  def last_seen
+    DateTime.parse(error.last_seen)
+  end
+
+  def project_id
+    Gitlab::GlobalId.build(model_name: 'Project', id: error.project_id).to_s
+  end
+
   def frequency
     utc_offset = Time.zone_offset('UTC')
 

changelogs/unreleased/35897-grapghql-error-tracking-list-errors.yml

+---
+title: Add querying of Sentry errors to Graphql
+merge_request: 21802
+author:
+type: added

doc/api/graphql/reference/gitlab_schema.graphql

@@ -5453,6 +5453,11 @@ type Project {
     id: ID!
   ): SentryDetailedError
 
+  """
+  Paginated collection of Sentry errors on the project
+  """
+  sentryErrors: SentryErrorCollection
+
   """
   E-mail address of the service desk.
   """
@@ -6054,6 +6059,9 @@ type RootStorageStatistics {
   wikiSize: Int!
 }
 
+"""
+A Sentry error.
+"""
 type SentryDetailedError {
   """
   Count of occurrences
@@ -6186,6 +6194,186 @@ type SentryDetailedError {
   userCount: Int!
 }
 
+"""
+A Sentry error. A simplified version of SentryDetailedError.
+"""
+type SentryError {
+  """
+  Count of occurrences
+  """
+  count: Int!
+
+  """
+  Culprit of the error
+  """
+  culprit: String!
+
+  """
+  External URL of the error
+  """
+  externalUrl: String!
+
+  """
+  Timestamp when the error was first seen
+  """
+  firstSeen: Time!
+
+  """
+  Last 24hr stats of the error
+  """
+  frequency: [SentryErrorFrequency!]!
+
+  """
+  ID (global ID) of the error
+  """
+  id: ID!
+
+  """
+  Timestamp when the error was last seen
+  """
+  lastSeen: Time!
+
+  """
+  Sentry metadata message of the error
+  """
+  message: String
+
+  """
+  ID (Sentry ID) of the error
+  """
+  sentryId: String!
+
+  """
+  ID of the project (Sentry project)
+  """
+  sentryProjectId: ID!
+
+  """
+  Name of the project affected by the error
+  """
+  sentryProjectName: String!
+
+  """
+  Slug of the project affected by the error
+  """
+  sentryProjectSlug: String!
+
+  """
+  Short ID (Sentry ID) of the error
+  """
+  shortId: String!
+
+  """
+  Status of the error
+  """
+  status: SentryErrorStatus!
+
+  """
+  Title of the error
+  """
+  title: String!
+
+  """
+  Type of the error
+  """
+  type: String!
+
+  """
+  Count of users affected by the error
+  """
+  userCount: Int!
+}
+
+"""
+An object containing a collection of Sentry errors, and a detailed error.
+"""
+type SentryErrorCollection {
+  """
+  Detailed version of a Sentry error on the project
+  """
+  detailedError(
+    """
+    ID of the Sentry issue
+    """
+    id: ID!
+  ): SentryDetailedError
+
+  """
+  Collection of Sentry Errors
+  """
+  errors(
+    """
+    Returns the elements in the list that come after the specified cursor.
+    """
+    after: String
+
+    """
+    Returns the elements in the list that come before the specified cursor.
+    """
+    before: String
+
+    """
+    Returns the first _n_ elements from the list.
+    """
+    first: Int
+
+    """
+    Returns the last _n_ elements from the list.
+    """
+    last: Int
+
+    """
+    Search term for the Sentry error.
+    """
+    searchTerm: String
+
+    """
+    Attribute to sort on. Options are frequency, first_seen, last_seen. last_seen is default.
+    """
+    sort: String
+  ): SentryErrorConnection
+
+  """
+  External URL for Sentry
+  """
+  externalUrl: String
+}
+
+"""
+The connection type for SentryError.
+"""
+type SentryErrorConnection {
+  """
+  A list of edges.
+  """
+  edges: [SentryErrorEdge]
+
+  """
+  A list of nodes.
+  """
+  nodes: [SentryError]
+
+  """
+  Information to aid in pagination.
+  """
+  pageInfo: PageInfo!
+}
+
+"""
+An edge in a connection.
+"""
+type SentryErrorEdge {
+  """
+  A cursor for use in pagination.
+  """
+  cursor: String!
+
+  """
+  The item at the end of the edge.
+  """
+  node: SentryError
+}
+
 type SentryErrorFrequency {
   """
   Count of errors received since the previously recorded time

doc/api/graphql/reference/gitlab_schema.json

@@ -1433,6 +1433,20 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "sentryErrors",
+              "description": "Paginated collection of Sentry errors on the project",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "SentryErrorCollection",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "serviceDeskAddress",
               "description": "E-mail address of the service desk.",
@@ -16708,7 +16722,7 @@
         {
           "kind": "OBJECT",
           "name": "SentryDetailedError",
-          "description": null,
+          "description": "A Sentry error.",
           "fields": [
             {
               "name": "count",
@@ -17408,6 +17422,568 @@
           "enumValues": null,
           "possibleTypes": null
         },
+        {
+          "kind": "OBJECT",
+          "name": "SentryErrorCollection",
+          "description": "An object containing a collection of Sentry errors, and a detailed error.",
+          "fields": [
+            {
+              "name": "detailedError",
+              "description": "Detailed version of a Sentry error on the project",
+              "args": [
+                {
+                  "name": "id",
+                  "description": "ID of the Sentry issue",
+                  "type": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "SCALAR",
+                      "name": "ID",
+                      "ofType": null
+                    }
+                  },
+                  "defaultValue": null
+                }
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "SentryDetailedError",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "errors",
+              "description": "Collection of Sentry Errors",
+              "args": [
+                {
+                  "name": "after",
+                  "description": "Returns the elements in the list that come after the specified cursor.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "before",
+                  "description": "Returns the elements in the list that come before the specified cursor.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "first",
+                  "description": "Returns the first _n_ elements from the list.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "Int",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "last",
+                  "description": "Returns the last _n_ elements from the list.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "Int",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "searchTerm",
+                  "description": "Search term for the Sentry error.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "sort",
+                  "description": "Attribute to sort on. Options are frequency, first_seen, last_seen. last_seen is default.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                }
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "SentryErrorConnection",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "externalUrl",
+              "description": "External URL for Sentry",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
+        {
+          "kind": "OBJECT",
+          "name": "SentryErrorConnection",
+          "description": "The connection type for SentryError.",
+          "fields": [
+            {
+              "name": "edges",
+              "description": "A list of edges.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "LIST",
+                "name": null,
+                "ofType": {
+                  "kind": "OBJECT",
+                  "name": "SentryErrorEdge",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "nodes",
+              "description": "A list of nodes.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "LIST",
+                "name": null,
+                "ofType": {
+                  "kind": "OBJECT",
+                  "name": "SentryError",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "pageInfo",
+              "description": "Information to aid in pagination.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "OBJECT",
+                  "name": "PageInfo",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
+        {
+          "kind": "OBJECT",
+          "name": "SentryErrorEdge",
+          "description": "An edge in a connection.",
+          "fields": [
+            {
+              "name": "cursor",
+              "description": "A cursor for use in pagination.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "node",
+              "description": "The item at the end of the edge.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "SentryError",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
+        {
+          "kind": "OBJECT",
+          "name": "SentryError",
+          "description": "A Sentry error. A simplified version of SentryDetailedError.",
+          "fields": [
+            {
+              "name": "count",
+              "description": "Count of occurrences",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "Int",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "culprit",
+              "description": "Culprit of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "externalUrl",
+              "description": "External URL of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "firstSeen",
+              "description": "Timestamp when the error was first seen",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "Time",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "frequency",
+              "description": "Last 24hr stats of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "LIST",
+                  "name": null,
+                  "ofType": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "OBJECT",
+                      "name": "SentryErrorFrequency",
+                      "ofType": null
+                    }
+                  }
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "id",
+              "description": "ID (global ID) of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "ID",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "lastSeen",
+              "description": "Timestamp when the error was last seen",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "Time",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "message",
+              "description": "Sentry metadata message of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "sentryId",
+              "description": "ID (Sentry ID) of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "sentryProjectId",
+              "description": "ID of the project (Sentry project)",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "ID",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "sentryProjectName",
+              "description": "Name of the project affected by the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "sentryProjectSlug",
+              "description": "Slug of the project affected by the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "shortId",
+              "description": "Short ID (Sentry ID) of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "status",
+              "description": "Status of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "ENUM",
+                  "name": "SentryErrorStatus",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "title",
+              "description": "Title of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "type",
+              "description": "Type of the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "userCount",
+              "description": "Count of users affected by the error",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "Int",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
         {
           "kind": "OBJECT",
           "name": "Metadata",

doc/api/graphql/reference/index.md

@@ -815,6 +815,7 @@ Information about pagination in a connection.
 | `repository` | Repository | Git repository of the project |
 | `requestAccessEnabled` | Boolean | Indicates if users can request member access to the project |
 | `sentryDetailedError` | SentryDetailedError | Detailed version of a Sentry error on the project |
+| `sentryErrors` | SentryErrorCollection | Paginated collection of Sentry errors on the project |
 | `serviceDeskAddress` | String | E-mail address of the service desk. |
 | `serviceDeskEnabled` | Boolean | Indicates if the project has service desk enabled. |
 | `sharedRunnersEnabled` | Boolean | Indicates if shared runners are enabled on the project |
@@ -919,6 +920,8 @@ Autogenerated return type of RemoveAwardEmoji
 
 ## SentryDetailedError
 
+A Sentry error.
+
 | Name  | Type  | Description |
 | ---   |  ---- | ----------  |
 | `count` | Int! | Count of occurrences |
@@ -948,6 +951,40 @@ Autogenerated return type of RemoveAwardEmoji
 | `type` | String! | Type of the error |
 | `userCount` | Int! | Count of users affected by the error |
 
+## SentryError
+
+A Sentry error. A simplified version of SentryDetailedError.
+
+| Name  | Type  | Description |
+| ---   |  ---- | ----------  |
+| `count` | Int! | Count of occurrences |
+| `culprit` | String! | Culprit of the error |
+| `externalUrl` | String! | External URL of the error |
+| `firstSeen` | Time! | Timestamp when the error was first seen |
+| `frequency` | SentryErrorFrequency! => Array | Last 24hr stats of the error |
+| `id` | ID! | ID (global ID) of the error |
+| `lastSeen` | Time! | Timestamp when the error was last seen |
+| `message` | String | Sentry metadata message of the error |
+| `sentryId` | String! | ID (Sentry ID) of the error |
+| `sentryProjectId` | ID! | ID of the project (Sentry project) |
+| `sentryProjectName` | String! | Name of the project affected by the error |
+| `sentryProjectSlug` | String! | Slug of the project affected by the error |
+| `shortId` | String! | Short ID (Sentry ID) of the error |
+| `status` | SentryErrorStatus! | Status of the error |
+| `title` | String! | Title of the error |
+| `type` | String! | Type of the error |
+| `userCount` | Int! | Count of users affected by the error |
+
+## SentryErrorCollection
+
+An object containing a collection of Sentry errors, and a detailed error.
+
+| Name  | Type  | Description |
+| ---   |  ---- | ----------  |
+| `detailedError` | SentryDetailedError | Detailed version of a Sentry error on the project |
+| `errors` | SentryErrorConnection | Collection of Sentry Errors |
+| `externalUrl` | String | External URL for Sentry |
+
 ## SentryErrorFrequency
 
 | Name  | Type  | Description |

lib/gitlab/error_tracking/detailed_error.rb

@@ -35,7 +35,7 @@ module Gitlab
                     :user_count
 
       def self.declarative_policy_class
-        'ErrorTracking::DetailedErrorPolicy'
+        'ErrorTracking::BasePolicy'
       end
     end
   end

lib/gitlab/error_tracking/error.rb

@@ -4,11 +4,16 @@ module Gitlab
   module ErrorTracking
     class Error
       include ActiveModel::Model
+      include GlobalID::Identification
 
       attr_accessor :id, :title, :type, :user_count, :count,
         :first_seen, :last_seen, :message, :culprit,
         :external_url, :project_id, :project_name, :project_slug,
         :short_id, :status, :frequency
+
+      def self.declarative_policy_class
+        'ErrorTracking::BasePolicy'
+      end
     end
   end
 end

lib/gitlab/error_tracking/error_collection.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module ErrorTracking
+    class ErrorCollection
+      include GlobalID::Identification
+
+      attr_accessor :issues, :external_url, :project
+
+      alias_attribute :gitlab_project, :project
+
+      def initialize(project:, external_url: nil, issues: [])
+        @project = project
+        @external_url = external_url
+        @issues = issues
+      end
+
+      def self.declarative_policy_class
+        'ErrorTracking::BasePolicy'
+      end
+    end
+  end
+end

lib/gitlab/graphql/extensions/externally_paginated_array_extension.rb

+# frozen_string_literal: true
+module Gitlab
+  module Graphql
+    module Extensions
+      class ExternallyPaginatedArrayExtension < GraphQL::Schema::Field::ConnectionExtension
+        def resolve(object:, arguments:, context:)
+          yield(object, arguments)
+        end
+      end
+    end
+  end
+end

spec/factories/error_tracking/detailed_error.rb

 # frozen_string_literal: true
 
 FactoryBot.define do
-  factory :detailed_error_tracking_error, class: 'Gitlab::ErrorTracking::DetailedError' do
-    id { '1' }
-    title { 'title' }
-    type { 'error' }
-    user_count { 1 }
-    count { 2 }
-    first_seen { Time.now.iso8601 }
-    last_seen { Time.now.iso8601 }
-    message { 'message' }
-    culprit { 'culprit' }
-    external_url { 'http://example.com/id' }
+  factory :detailed_error_tracking_error, parent: :error_tracking_error, class: 'Gitlab::ErrorTracking::DetailedError' do
+    gitlab_issue { 'http://gitlab.example.com/issues/1' }
     external_base_url { 'http://example.com' }
-    project_id { 'project1' }
-    project_name { 'project name' }
-    project_slug { 'project_name' }
-    short_id { 'ID' }
-    status { 'unresolved' }
+    first_release_last_commit { '68c914da9' }
+    last_release_last_commit { '9ad419c86' }
+    first_release_short_version { 'abc123' }
+    last_release_short_version { 'abc123' }
+    first_release_version { '12345678' }
     tags do
       {
         level: 'error',
         logger: 'rails'
       }
     end
-    frequency do
-      [
-        [Time.now.to_i, 10]
-      ]
-    end
-    gitlab_issue { 'http://gitlab.example.com/issues/1' }
-    first_release_last_commit { '68c914da9' }
-    last_release_last_commit { '9ad419c86' }
-    first_release_short_version { 'abc123' }
-    last_release_short_version { 'abc123' }
-    first_release_version { '12345678' }
-
     skip_create
   end
 end

spec/factories/error_tracking/error.rb

@@ -2,13 +2,13 @@
 
 FactoryBot.define do
   factory :error_tracking_error, class: 'Gitlab::ErrorTracking::Error' do
-    id { 'id' }
+    id { '1' }
     title { 'title' }
     type { 'error' }
     user_count { 1 }
     count { 2 }
-    first_seen { Time.now }
-    last_seen { Time.now }
+    first_seen { Time.now.iso8601 }
+    last_seen { Time.now.iso8601 }
     message { 'message' }
     culprit { 'culprit' }
     external_url { 'http://example.com/id' }
@@ -17,7 +17,11 @@ FactoryBot.define do
     project_slug { 'project_name' }
     short_id { 'ID' }
     status { 'unresolved' }
-    frequency { [] }
+    frequency do
+      [
+        [Time.now.to_i, 10]
+      ]
+    end
 
     skip_create
   end

spec/graphql/resolvers/error_tracking/sentry_error_collection_resolver_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Resolvers::ErrorTracking::SentryErrorCollectionResolver do
+  include GraphqlHelpers
+
+  let_it_be(:project) { create(:project) }
+  let_it_be(:current_user) { create(:user) }
+
+  let(:list_issues_service) { spy('ErrorTracking::ListIssuesService') }
+
+  before do
+    project.add_developer(current_user)
+
+    allow(ErrorTracking::ListIssuesService)
+      .to receive(:new)
+      .and_return list_issues_service
+  end
+
+  describe '#resolve' do
+    it 'returns an error collection object' do
+      expect(resolve_error_collection).to be_a Gitlab::ErrorTracking::ErrorCollection
+    end
+
+    it 'provides the service url' do
+      fake_url = 'http://test.com'
+
+      expect(list_issues_service)
+        .to receive(:external_url)
+        .and_return(fake_url)
+
+      result = resolve_error_collection
+      expect(result.external_url).to eq fake_url
+    end
+
+    it 'provides the project' do
+      expect(resolve_error_collection.project).to eq project
+    end
+  end
+
+  private
+
+  def resolve_error_collection(context = { current_user: current_user })
+    resolve(described_class, obj: project, args: {}, ctx: context)
+  end
+end

spec/graphql/resolvers/error_tracking/sentry_errors_resolver_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Resolvers::ErrorTracking::SentryErrorsResolver do
+  include GraphqlHelpers
+
+  let_it_be(:project) { create(:project) }
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:error_collection) { Gitlab::ErrorTracking::ErrorCollection.new(project: project) }
+
+  let(:list_issues_service) { spy('ErrorTracking::ListIssuesService') }
+
+  let(:issues) { nil }
+  let(:pagination) { nil }
+
+  describe '#resolve' do
+    context 'insufficient user permission' do
+      let(:user) { create(:user) }
+
+      it 'returns nil' do
+        context = { current_user: user }
+
+        expect(resolve_errors({}, context)).to eq nil
+      end
+    end
+
+    context 'user with permission' do
+      before do
+        project.add_developer(current_user)
+
+        allow(ErrorTracking::ListIssuesService)
+          .to receive(:new)
+          .and_return list_issues_service
+      end
+
+      context 'when after arg given' do
+        let(:after) { "1576029072000:0:0" }
+
+        it 'gives the cursor arg' do
+          expect(ErrorTracking::ListIssuesService)
+            .to receive(:new)
+            .with(project, current_user, { cursor: after })
+            .and_return list_issues_service
+
+          resolve_errors({ after: after })
+        end
+      end
+
+      context 'when no issues fetched' do
+        before do
+          allow(list_issues_service)
+            .to receive(:execute)
+            .and_return(
+              issues: nil
+            )
+        end
+        it 'returns nil' do
+          expect(resolve_errors).to eq nil
+        end
+      end
+
+      context 'when issues returned' do
+        let(:issues) { [:issue_1, :issue_2] }
+        let(:pagination) do
+          {
+            'next' => { 'cursor' => 'next' },
+            'previous' => { 'cursor' => 'prev' }
+          }
+        end
+
+        before do
+          allow(list_issues_service)
+            .to receive(:execute)
+            .and_return(
+              issues: issues,
+              pagination: pagination
+            )
+        end
+
+        it 'sets the issues' do
+          expect(resolve_errors).to contain_exactly(*issues)
+        end
+
+        it 'sets the pagination variables' do
+          result = resolve_errors
+          expect(result.next_cursor).to eq 'next'
+          expect(result.previous_cursor).to eq 'prev'
+        end
+
+        it 'returns an externally paginated array' do
+          expect(resolve_errors).to be_a Gitlab::Graphql::ExternallyPaginatedArray
+        end
+      end
+    end
+  end
+
+  private
+
+  def resolve_errors(args = {}, context = { current_user: current_user })
+    resolve(described_class, obj: error_collection, args: args, ctx: context)
+  end
+end

spec/graphql/types/error_tracking/sentry_error_collection_type_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe GitlabSchema.types['SentryErrorCollection'] do
+  it { expect(described_class.graphql_name).to eq('SentryErrorCollection') }
+
+  it { expect(described_class).to require_graphql_authorizations(:read_sentry_issue) }
+
+  it 'exposes the expected fields' do
+    expected_fields = %i[
+      errors
+      detailed_error
+      external_url
+    ]
+
+    is_expected.to have_graphql_fields(*expected_fields)
+  end
+
+  describe 'errors field' do
+    subject { described_class.fields['errors'] }
+
+    it 'returns errors' do
+      aggregate_failures 'testing the correct types are returned' do
+        is_expected.to have_graphql_type(Types::ErrorTracking::SentryErrorType.connection_type)
+        is_expected.to have_graphql_extension(Gitlab::Graphql::Extensions::ExternallyPaginatedArrayExtension)
+        is_expected.to have_graphql_resolver(Resolvers::ErrorTracking::SentryErrorsResolver)
+      end
+    end
+  end
+end

spec/graphql/types/error_tracking/sentry_error_type_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe GitlabSchema.types['SentryError'] do
+  it { expect(described_class.graphql_name).to eq('SentryError') }
+
+  it 'exposes the expected fields' do
+    expected_fields = %i[
+      id
+      sentryId
+      title
+      type
+      userCount
+      count
+      firstSeen
+      lastSeen
+      message
+      culprit
+      externalUrl
+      sentryProjectId
+      sentryProjectName
+      sentryProjectSlug
+      shortId
+      status
+      frequency
+    ]
+
+    is_expected.to have_graphql_fields(*expected_fields)
+  end
+end

spec/presenters/sentry_detailed_error_presenter_spec.rb → spec/presenters/sentry_error_presenter_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-describe SentryDetailedErrorPresenter do
+describe SentryErrorPresenter do
   let(:error) { build(:detailed_error_tracking_error) }
   let(:presenter) { described_class.new(error) }
 
@@ -10,7 +10,7 @@ describe SentryDetailedErrorPresenter do
     subject { presenter.frequency }
 
     it 'returns an array of frequency structs' do
-      expect(subject).to include(a_kind_of(SentryDetailedErrorPresenter::FrequencyStruct))
+      expect(subject).to include(a_kind_of(SentryErrorPresenter::FrequencyStruct))
     end
 
     it 'converts the times into UTC time objects' do

spec/requests/api/graphql/project/error_tracking/sentry_errors_request_spec.rb

+# frozen_string_literal: true
+require 'spec_helper'
+
+describe 'sentry errors requests' do
+  include GraphqlHelpers
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:project_setting) { create(:project_error_tracking_setting, project: project) }
+  let_it_be(:current_user) { project.owner }
+
+  let(:query) do
+    graphql_query_for(
+      'project',
+      { 'fullPath' => project.full_path },
+      query_graphql_field('sentryErrors', {}, fields)
+    )
+  end
+
+  describe 'getting a detailed sentry error' do
+    let_it_be(:sentry_detailed_error) { build(:detailed_error_tracking_error) }
+    let(:sentry_gid) { sentry_detailed_error.to_global_id.to_s }
+
+    let(:detailed_fields) do
+      all_graphql_fields_for('SentryDetailedError'.classify)
+    end
+
+    let(:fields) do
+      query_graphql_field('detailedError', { id: sentry_gid }, detailed_fields)
+    end
+
+    let(:error_data) { graphql_data.dig('project', 'sentryErrors', 'detailedError') }
+
+    it_behaves_like 'a working graphql query' do
+      before do
+        post_graphql(query, current_user: current_user)
+      end
+    end
+
+    context 'when data is loading via reactive cache' do
+      before do
+        post_graphql(query, current_user: current_user)
+      end
+
+      it "is expected to return an empty error" do
+        expect(error_data).to eq nil
+      end
+    end
+
+    context 'reactive cache returns data' do
+      before do
+        allow_any_instance_of(ErrorTracking::ProjectErrorTrackingSetting)
+          .to receive(:issue_details)
+          .and_return({ issue: sentry_detailed_error })
+
+        post_graphql(query, current_user: current_user)
+      end
+
+      let(:sentry_error) { sentry_detailed_error }
+      let(:error) { error_data }
+
+      it_behaves_like 'setting sentry error data'
+
+      it 'is expected to return the frequency correctly' do
+        aggregate_failures 'it returns the frequency correctly' do
+          expect(error_data['frequency'].count).to eql sentry_detailed_error.frequency.count
+
+          first_frequency = error_data['frequency'].first
+          expect(Time.parse(first_frequency['time'])).to eql Time.at(sentry_detailed_error.frequency[0][0], in: 0)
+          expect(first_frequency['count']).to eql sentry_detailed_error.frequency[0][1]
+        end
+      end
+
+      context 'user does not have permission' do
+        let(:current_user) { create(:user) }
+
+        it "is expected to return an empty error" do
+          expect(error_data).to eq nil
+        end
+      end
+    end
+
+    context 'sentry api returns an error' do
+      before do
+        expect_any_instance_of(ErrorTracking::ProjectErrorTrackingSetting)
+          .to receive(:issue_details)
+          .and_return({ error: 'error message' })
+
+        post_graphql(query, current_user: current_user)
+      end
+
+      it 'is expected to handle the error and return nil' do
+        expect(error_data).to eq nil
+      end
+    end
+  end
+
+  describe 'getting an errors list' do
+    let_it_be(:sentry_error) { build(:error_tracking_error) }
+    let_it_be(:pagination) do
+      {
+        'next' => { 'cursor' => '2222' },
+        'previous' => { 'cursor' => '1111' }
+      }
+    end
+
+    let(:fields) do
+      <<~QUERY
+          errors {
+            nodes {
+              #{all_graphql_fields_for('SentryError'.classify)}
+            }
+            pageInfo {
+              hasNextPage
+              hasPreviousPage
+              startCursor
+              endCursor
+            }
+          }
+      QUERY
+    end
+
+    let(:error_data) { graphql_data.dig('project', 'sentryErrors', 'errors', 'nodes') }
+    let(:pagination_data) {  graphql_data.dig('project', 'sentryErrors', 'errors', 'pageInfo') }
+
+    it_behaves_like 'a working graphql query' do
+      before do
+        post_graphql(query, current_user: current_user)
+      end
+    end
+
+    context 'when data is loading via reactive cache' do
+      before do
+        post_graphql(query, current_user: current_user)
+      end
+
+      it "is expected to return nil" do
+        expect(error_data).to eq nil
+      end
+    end
+
+    context 'reactive cache returns data' do
+      before do
+        expect_any_instance_of(ErrorTracking::ProjectErrorTrackingSetting)
+          .to receive(:list_sentry_issues)
+          .and_return({ issues: [sentry_error], pagination: pagination })
+
+        post_graphql(query, current_user: current_user)
+      end
+
+      let(:error) { error_data.first }
+
+      it 'is expected to return an array of data' do
+        expect(error_data).to be_a Array
+        expect(error_data.count).to eq 1
+      end
+
+      it_behaves_like 'setting sentry error data'
+
+      it 'sets the pagination correctly' do
+        expect(pagination_data['startCursor']).to eq(pagination['previous']['cursor'])
+        expect(pagination_data['endCursor']).to eq(pagination['next']['cursor'])
+      end
+
+      it 'is expected to return the frequency correctly' do
+        aggregate_failures 'it returns the frequency correctly' do
+          error = error_data.first
+
+          expect(error['frequency'].count).to eql sentry_error.frequency.count
+
+          first_frequency = error['frequency'].first
+
+          expect(Time.parse(first_frequency['time'])).to eql Time.at(sentry_error.frequency[0][0], in: 0)
+          expect(first_frequency['count']).to eql sentry_error.frequency[0][1]
+        end
+      end
+    end
+
+    context "sentry api itself errors out" do
+      before do
+        expect_any_instance_of(ErrorTracking::ProjectErrorTrackingSetting)
+          .to receive(:list_sentry_issues)
+          .and_return({ error: 'error message' })
+
+        post_graphql(query, current_user: current_user)
+      end
+
+      it 'is expected to handle the error and return nil' do
+        expect(error_data).to eq nil
+      end
+    end
+  end
+end

spec/support/matchers/graphql_matchers.rb

@@ -108,6 +108,12 @@ RSpec::Matchers.define :have_graphql_resolver do |expected|
   end
 end
 
+RSpec::Matchers.define :have_graphql_extension do |expected|
+  match do |field|
+    expect(field.metadata[:type_class].extensions).to include(expected)
+  end
+end
+
 RSpec::Matchers.define :expose_permissions_using do |expected|
   match do |type|
     permission_field = type.fields['userPermissions']

spec/support/shared_examples/error_tracking_shared_examples.rb

+# frozen_string_literal: true
+
+RSpec.shared_examples 'setting sentry error data' do
+  it 'sets the sentry error data correctly' do
+    aggregate_failures 'testing the sentry error is correct' do
+      expect(error['id']).to eql sentry_error.to_global_id.to_s
+      expect(error['sentryId']).to eql sentry_error.id.to_s
+      expect(error['status']).to eql sentry_error.status.upcase
+      expect(error['firstSeen']).to eql sentry_error.first_seen
+      expect(error['lastSeen']).to eql sentry_error.last_seen
+    end
+  end
+end