About unions
A union is a type of object representing many objects.
For example, a field marked as an ProjectCardItem could be an Issue or a PullRequest because each of those objects can be inside a project card. Using a union instead of an object gives you flexibility.
For more information, see Introduction to GraphQL.
BranchActorAllowanceActor
Types which can be actors for BranchActorAllowance objects.
BypassActor
Types that can represent a repository ruleset bypass actor.
Claimable
An object which can have its data claimed or claim data from another.
CreatedIssueOrRestrictedContribution
Represents either a issue the viewer can access or a restricted contribution.
Possible types for CreatedIssueOrRestrictedContribution
CreatedPullRequestOrRestrictedContribution
Represents either a pull request the viewer can access or a restricted contribution.
Possible types for CreatedPullRequestOrRestrictedContribution
CreatedRepositoryOrRestrictedContribution
Represents either a repository the viewer can access or a restricted contribution.
Possible types for CreatedRepositoryOrRestrictedContribution
IssueOrPullRequest
Used for return value of Repository.issueOrPullRequest.
Possible types for IssueOrPullRequest
IssueTimelineItems
An item in an issue timeline.
Possible types for IssueTimelineItems
AddedToProjectEventAssignedEventClosedEventCommentDeletedEventConnectedEventConvertedNoteToIssueEventConvertedToDiscussionEventCrossReferencedEventDemilestonedEventDisconnectedEventIssueCommentLabeledEventLockedEventMarkedAsDuplicateEventMentionedEventMilestonedEventMovedColumnsInProjectEventPinnedEventReferencedEventRemovedFromProjectEventRenamedTitleEventReopenedEventSubscribedEventTransferredEventUnassignedEventUnlabeledEventUnlockedEventUnmarkedAsDuplicateEventUnpinnedEventUnsubscribedEventUserBlockedEvent
OrgRestoreMemberAuditEntryMembership
Types of memberships that can be restored for an Organization member.
Possible types for OrgRestoreMemberAuditEntryMembership
OrganizationAuditEntry
An audit entry in an organization audit log.
Possible types for OrganizationAuditEntry
MembersCanDeleteReposClearAuditEntryMembersCanDeleteReposDisableAuditEntryMembersCanDeleteReposEnableAuditEntryOauthApplicationCreateAuditEntryOrgAddBillingManagerAuditEntryOrgAddMemberAuditEntryOrgBlockUserAuditEntryOrgConfigDisableCollaboratorsOnlyAuditEntryOrgConfigEnableCollaboratorsOnlyAuditEntryOrgCreateAuditEntryOrgDisableOauthAppRestrictionsAuditEntryOrgDisableSamlAuditEntryOrgDisableTwoFactorRequirementAuditEntryOrgEnableOauthAppRestrictionsAuditEntryOrgEnableSamlAuditEntryOrgEnableTwoFactorRequirementAuditEntryOrgInviteMemberAuditEntryOrgInviteToBusinessAuditEntryOrgOauthAppAccessApprovedAuditEntryOrgOauthAppAccessBlockedAuditEntryOrgOauthAppAccessDeniedAuditEntryOrgOauthAppAccessRequestedAuditEntryOrgOauthAppAccessUnblockedAuditEntryOrgRemoveBillingManagerAuditEntryOrgRemoveMemberAuditEntryOrgRemoveOutsideCollaboratorAuditEntryOrgRestoreMemberAuditEntryOrgUnblockUserAuditEntryOrgUpdateDefaultRepositoryPermissionAuditEntryOrgUpdateMemberAuditEntryOrgUpdateMemberRepositoryCreationPermissionAuditEntryOrgUpdateMemberRepositoryInvitationPermissionAuditEntryPrivateRepositoryForkingDisableAuditEntryPrivateRepositoryForkingEnableAuditEntryRepoAccessAuditEntryRepoAddMemberAuditEntryRepoAddTopicAuditEntryRepoArchivedAuditEntryRepoChangeMergeSettingAuditEntryRepoConfigDisableAnonymousGitAccessAuditEntryRepoConfigDisableCollaboratorsOnlyAuditEntryRepoConfigDisableContributorsOnlyAuditEntryRepoConfigDisableSockpuppetDisallowedAuditEntryRepoConfigEnableAnonymousGitAccessAuditEntryRepoConfigEnableCollaboratorsOnlyAuditEntryRepoConfigEnableContributorsOnlyAuditEntryRepoConfigEnableSockpuppetDisallowedAuditEntryRepoConfigLockAnonymousGitAccessAuditEntryRepoConfigUnlockAnonymousGitAccessAuditEntryRepoCreateAuditEntryRepoDestroyAuditEntryRepoRemoveMemberAuditEntryRepoRemoveTopicAuditEntryRepositoryVisibilityChangeDisableAuditEntryRepositoryVisibilityChangeEnableAuditEntryTeamAddMemberAuditEntryTeamAddRepositoryAuditEntryTeamChangeParentTeamAuditEntryTeamRemoveMemberAuditEntryTeamRemoveRepositoryAuditEntry
OrganizationOrUser
Used for argument of CreateProjectV2 mutation.
Possible types for OrganizationOrUser
PermissionGranter
Types that can grant permissions on a repository to a user.
Possible types for PermissionGranter
ProjectV2FieldConfiguration
Configurations for project fields.
Possible types for ProjectV2FieldConfiguration
ProjectV2ItemFieldValue
Project field values.
Possible types for ProjectV2ItemFieldValue
ProjectV2ItemFieldDateValueProjectV2ItemFieldIterationValueProjectV2ItemFieldLabelValueProjectV2ItemFieldMilestoneValueProjectV2ItemFieldNumberValueProjectV2ItemFieldPullRequestValueProjectV2ItemFieldRepositoryValueProjectV2ItemFieldReviewerValueProjectV2ItemFieldSingleSelectValueProjectV2ItemFieldTextValueProjectV2ItemFieldUserValue
PullRequestTimelineItem
An item in a pull request timeline.
Possible types for PullRequestTimelineItem
AssignedEventBaseRefDeletedEventBaseRefForcePushedEventClosedEventCommitCommitCommentThreadCrossReferencedEventDemilestonedEventDeployedEventDeploymentEnvironmentChangedEventHeadRefDeletedEventHeadRefForcePushedEventHeadRefRestoredEventIssueCommentLabeledEventLockedEventMergedEventMilestonedEventPullRequestReviewPullRequestReviewCommentPullRequestReviewThreadReferencedEventRenamedTitleEventReopenedEventReviewDismissedEventReviewRequestRemovedEventReviewRequestedEventSubscribedEventUnassignedEventUnlabeledEventUnlockedEventUnsubscribedEventUserBlockedEvent
PullRequestTimelineItems
An item in a pull request timeline.
Possible types for PullRequestTimelineItems
AddedToMergeQueueEventAddedToProjectEventAssignedEventAutoMergeDisabledEventAutoMergeEnabledEventAutoRebaseEnabledEventAutoSquashEnabledEventAutomaticBaseChangeFailedEventAutomaticBaseChangeSucceededEventBaseRefChangedEventBaseRefDeletedEventBaseRefForcePushedEventClosedEventCommentDeletedEventConnectedEventConvertToDraftEventConvertedNoteToIssueEventConvertedToDiscussionEventCrossReferencedEventDemilestonedEventDeployedEventDeploymentEnvironmentChangedEventDisconnectedEventHeadRefDeletedEventHeadRefForcePushedEventHeadRefRestoredEventIssueCommentLabeledEventLockedEventMarkedAsDuplicateEventMentionedEventMergedEventMilestonedEventMovedColumnsInProjectEventPinnedEventPullRequestCommitPullRequestCommitCommentThreadPullRequestReviewPullRequestReviewThreadPullRequestRevisionMarkerReadyForReviewEventReferencedEventRemovedFromMergeQueueEventRemovedFromProjectEventRenamedTitleEventReopenedEventReviewDismissedEventReviewRequestRemovedEventReviewRequestedEventSubscribedEventTransferredEventUnassignedEventUnlabeledEventUnlockedEventUnmarkedAsDuplicateEventUnpinnedEventUnsubscribedEventUserBlockedEvent
RequestedReviewer
Types that can be requested reviewers.
ReviewDismissalAllowanceActor
Types that can be an actor.
RuleParameters
Types which can be parameters for RepositoryRule objects.
Possible types for RuleParameters
BranchNamePatternParametersCodeScanningParametersCommitAuthorEmailPatternParametersCommitMessagePatternParametersCommitterEmailPatternParametersFileExtensionRestrictionParametersFilePathRestrictionParametersMaxFilePathLengthParametersMaxFileSizeParametersMergeQueueParametersPullRequestParametersRequiredDeploymentsParametersRequiredStatusChecksParametersTagNamePatternParametersUpdateParametersWorkflowsParameters
SponsorableItem
Entities that can be sponsored via GitHub Sponsors.
Possible types for SponsorableItem
SponsorsListingFeatureableItem
A record that can be featured on a GitHub Sponsors profile.
Possible types for SponsorsListingFeatureableItem
StatusCheckRollupContext
Types that can be inside a StatusCheckRollup context.
Possible types for StatusCheckRollupContext
VerifiableDomainOwner
Types that can own a verifiable domain.