GetError returns a copy of the Error.

IsError tests the concrete error is of the Error type.

New constructs an error based on an app error.

Newf constructs an error based on a error message.

Aborted indicates the operation was aborted, typically due to a concurrency issue like sequencer check failures, transaction aborts, etc.

AlreadyExists means an attempt to create an entity failed because one already exists.

Canceled indicates the operation was canceled (typically by the caller).

DataLoss indicates unrecoverable data loss or corruption.

DeadlineExceeded means operation expired before completion.

FailedPrecondition indicates operation was rejected because the system is not in a state required for the operation's execution.

Internal errors.

InvalidArgument indicates client specified an invalid argument.

NotFound means some requested entity (e.g., file or directory) was not found.

OK indicates the operation was successful.

OutOfRange means operation was attempted past the valid range.

PermissionDenied indicates the caller does not have permission to execute the specified operation.

ResourceExhausted indicates some resource has been exhausted, perhaps a per-user quota, or perhaps the entire file system is out of space.

Unauthenticated indicates the request does not have valid authentication credentials for the operation.

Unavailable indicates the service is currently unavailable.

Unimplemented indicates operation is not implemented or not supported/enabled in this service.

Unknown error.

ErrCode represents an error code in the system.

Error represents an error in the system.