OpResult

A lightweight, type-safe result wrapper for handling success and failure cases in Dart.

Features

OpResult is a generic class designed to handle operations that return either a success or a failure in a structured and type-safe manner.

• Generic over Success Type (OpResult<T>) — errors are wrapped using OpError with enum types
• Prevents null checks—ensures only one of data or error exists
• Encapsulates errors in a structured way using enums
• Easily maps error types to custom/multi-language messages
• Works seamlessly in any context, with APIs, validation, domain logic, etc.
• No dependencies—lightweight and efficient

Getting started

Add op_result to your project’s pubspec.yaml:

> dart pub add op_result

or

> flutter pub add op_result

Usage

See example/op_result_example.dart for runnable usage examples.

License

This package is licensed under the BSD 3-Clause License. See the LICENSE file for details.