codes.go

package grpctools

import (
	"net/http"

	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

// HTTPStatus returns a http stats from a grpc error code
func HTTPStatus(c codes.Code) int {
	switch c {
	case codes.OK:
		return http.StatusOK
	case codes.Canceled:
		return http.StatusGone
	case codes.Unknown:
		return http.StatusInternalServerError
	case codes.InvalidArgument:
		return http.StatusBadRequest
	case codes.DeadlineExceeded:
		return http.StatusRequestTimeout
	case codes.NotFound:
		return http.StatusNotFound
	case codes.AlreadyExists:
		return http.StatusConflict
	case codes.PermissionDenied:
		return http.StatusForbidden
	case codes.Unauthenticated:
		return http.StatusUnauthorized
	case codes.ResourceExhausted:
		return http.StatusTooManyRequests
	case codes.FailedPrecondition:
		return http.StatusPreconditionFailed
	case codes.Aborted:
		return http.StatusPreconditionFailed
	case codes.OutOfRange:
		return http.StatusRequestedRangeNotSatisfiable
	case codes.Unimplemented:
		return http.StatusNotImplemented
	case codes.Internal:
		return http.StatusInternalServerError
	case codes.Unavailable:
		return http.StatusServiceUnavailable
	case codes.DataLoss:
		return http.StatusInternalServerError
	default:
		return http.StatusTeapot
	}
}

// HTTPStatusFromError returns a http stats from a grpc error code
func HTTPStatusFromError(err error) int { return HTTPStatus(status.Code(err)) }