This package has been superseded by CSharpFunctionalExtensions.UniTask
This library helps write code in more functional way. To get to know more about the principles behind it, check out the Applying Functional Principles in C# Pluralsight course.
Most of the code in this library is originating from the awesome CSharpFunctionalExtensions project which you should definitely check out.
Differences between Razensoft.Functional (1.1.0) and CSharpFunctionalExtensions (v2.20.0):
- Removed all classes except
Result,UnitResultandMaybe - Renamed root namespace from
CSharpFunctionalExtensionstoRazensoft.Functional - Added extensions methods for
UniTask
There are several ways to install this library into our project:
- Plain install: Clone or download this repository and put it somewhere in your Unity project
- Unity Package Manager (UPM): Add the following line to Packages/manifest.json:
"com.razensoft.functional": "https://github.com/Razenpok/Razensoft.Functional.git?path=src/Razensoft.Functional#1.1.0",
- OpenUPM: After installing openupm-cli, run the following command:
openupm add com.razensoft.functional
Result<CustomerName> name = CustomerName.Create(model.Name);
Result<Email> email = Email.Create(model.PrimaryEmail);
Result result = Result.Combine(name, email);
if (result.IsFailure)
return Error(result.Error);
var customer = new Customer(name.Value, email.Value);Maybe<Customer> customerOrNothing = _customerRepository.GetById(id);
if (customerOrNothing.HasNoValue)
return Error("Customer with such Id is not found: " + id);return _customerRepository.GetById(id)
.ToResult("Customer with such Id is not found: " + id)
.Ensure(customer => customer.CanBePromoted(), "The customer has the highest status possible")
.Tap(customer => customer.Promote())
.Tap(customer => _emailGateway.SendPromotionNotification(customer.PrimaryEmail, customer.Status))
.Finally(result => result.IsSuccess ? Ok() : Error(result.Error));return _customerRepository.GetById(id)
.ToResult("Customer with such Id is not found: " + id)
.Ensure(customer => customer.CanBePromoted(), "The customer has the highest status possible")
.WithTransactionScope(customer => Result.Success(customer)
.Tap(customer => customer.Promote())
.Tap(customer => customer.ClearAppointments()))
.Tap(customer => _emailGateway.SendPromotionNotification(customer.PrimaryEmail, customer.Status))
.Finally(result => result.IsSuccess ? Ok() : Error(result.Error));- Functional C#: Primitive obsession
- Functional C#: Non-nullable reference types
- Functional C#: Handling failures, input errors
- Applying Functional Principles in C# Pluralsight course
A big thanks to the project author, Vladimir Khorikov, and to all of the contributors of the original project. Again, don't forget to check it out!