upda/server/errors.go

51 lines
2.1 KiB
Go

package server
import (
"errors"
"fmt"
)
var (
errorValidationNotEmpty = newServiceError(IllegalArgument, errors.New("assert: empty values are not allowed"))
errorValidationNotBlank = newServiceError(IllegalArgument, errors.New("assert: blank values are not allowed"))
errorValidationPageGreaterZero = newServiceError(IllegalArgument, errors.New("assert: page has to be greater 0"))
errorValidationPageSizeGreaterZero = newServiceError(IllegalArgument, errors.New("assert: pageSize has to be greater 0"))
errorValidationLimitGreaterZero = newServiceError(IllegalArgument, errors.New("assert: limit has to be greater 0"))
errorValidationSizeGreaterZero = newServiceError(IllegalArgument, errors.New("assert: size has to be greater 0"))
errorValidationMaxRetriesGreaterZero = newServiceError(IllegalArgument, errors.New("assert: max retries has to be greater 0"))
errorResourceNotFound = newServiceError(NotFound, errors.New("resource not found"))
errorResourceAccessDenied = newServiceError(Forbidden, errors.New("resource access denied"))
errorDatabaseRowsExpected = newServiceDatabaseError(errors.New("action failed, expected affected rows, but got none"))
)
type ErrorCode string
const (
IllegalArgument ErrorCode = "IllegalArgument"
Unauthorized ErrorCode = "Unauthorized"
Forbidden ErrorCode = "Forbidden"
NotFound ErrorCode = "NotFound"
Conflict ErrorCode = "Conflict"
General ErrorCode = "General"
)
// newServiceError returns an error that formats as the given text and aligns with builtin error
func newServiceError(status ErrorCode, err error) error {
return &serviceError{status, fmt.Errorf("service error (%v): %w", status, err)}
}
// newServiceDatabaseError returns an error that formats as the given text and aligns with builtin error
func newServiceDatabaseError(error error) error {
return newServiceError(General, fmt.Errorf("database error: %w", error))
}
type serviceError struct {
Status ErrorCode
Cause error
}
func (e *serviceError) Error() string {
return fmt.Sprintf("%v", e.Cause)
}