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Package status

import "google.golang.org/grpc/status"
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Package status implements errors returned by gRPC. These errors are serialized and transmitted on the wire between server and client, and allow for additional data to be transmitted via the Details field in the status proto. gRPC service handlers should return an error created by this package, and gRPC clients should expect a corresponding error to be returned from the RPC call.

This package upholds the invariants that a non-nil error may not contain an OK code, and an OK code must result in a nil error.

func Code

func Code(err error) codes.Code

Code returns the Code of the error if it is a Status error or if it wraps a Status error. If that is not the case, it returns codes.OK if err is nil, or codes.Unknown otherwise.

func Error

func Error(c codes.Code, msg string) error

Error returns an error representing c and msg. If c is OK, returns nil.

func ErrorProto

func ErrorProto(s *spb.Status) error

ErrorProto returns an error representing s. If s.Code is OK, returns nil.

func Errorf

func Errorf(c codes.Code, format string, a ...any) error

Errorf returns Error(c, fmt.Sprintf(format, a...)).

type Status

Status references google.golang.org/grpc/internal/status. It represents an RPC status code, message, and details. It is immutable and should be created with New, Newf, or FromProto. https://godoc.org/google.golang.org/grpc/internal/status

type Status = status.Status

func Convert

func Convert(err error) *Status

Convert is a convenience function which removes the need to handle the boolean return value from FromError.

func FromContextError

func FromContextError(err error) *Status

FromContextError converts a context error or wrapped context error into a Status. It returns a Status with codes.OK if err is nil, or a Status with codes.Unknown if err is non-nil and not a context error.

func FromError

func FromError(err error) (s *Status, ok bool)

FromError returns a Status representation of err.

func FromProto

func FromProto(s *spb.Status) *Status

FromProto returns a Status representing s.

func New

func New(c codes.Code, msg string) *Status

New returns a Status representing c and msg.

func Newf

func Newf(c codes.Code, format string, a ...any) *Status

Newf returns New(c, fmt.Sprintf(format, a...)).