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A simple posibility to return a Result with eiter success or failure.

Simple Result for Dart #

Introduction #

I needed a simple Result like Swift's Result.

I have seen people using dartz with the Either type. But for me, thats not really clear and readable.

Other solutions like result and super_enum did not fit my needs neither. So here is my suggestion.

Installation #

Add the following to you pubspec.yaml and replace [version] with the latest version:

dependencies:
  simple_result: ^[version]

Example #


abstract class Failure {}

class SomeFailure extends Failure {}

void main() async {
	final result = await fetchUser();
	final resultAsString = result.when(
		success:(user) => user.username, 
		failure:(failre) => failire.toString());
	print(resultAsString);
}
Future<Result<Failure, User>>fetchUser() async {
	if (ok){
		return Result.success(user);
	}
	return Result.failure(SomeFailure());
} 

see more in example/main.dart

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A simple posibility to return a Result with eiter success or failure.

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