The Monad Invasion - Part 2: Monads in Action!

• vonage-dotnet-sdk

  2 104 9.6 C#

  Vonage REST API client for .NET, written in C#. API support for SMS, Voice, Text-to-Speech, Numbers, Verify (2FA) and more.

  

Previously, we built an Optional and showed an existing set based on Language-Ext, but various libraries also offer Monad implementations. In the case of our SDK, we deliberately avoided relying on external libraries like Language-Ext. Indeed, Monads are a part of the SDK's public API, and relying on an external library would introduce a dependency over which we would have limited control.

• language-ext

  41 6,159 6.9 C#

  C# functional language extensions - a base class library for functional programming

You probably noticed that .SetName() returns a Either. You may have come across Unit in libraries like MediatR or Language-Ext. It's a simple construct representing a type with only one possible value. We use it as a placeholder for operations that do not return a value but may return another state. In our example, .SetName() is a Command that does not return a value but may fail. Therefore, the monad Either carries two possible states: Right (without value) or Left (with an Error).

• InfluxDB

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• MediatR

  53 10,614 6.2 C#

  Simple, unambitious mediator implementation in .NET

You probably noticed that .SetName() returns a Either. You may have come across Unit in libraries like MediatR or Language-Ext. It's a simple construct representing a type with only one possible value. We use it as a placeholder for operations that do not return a value but may return another state. In our example, .SetName() is a Command that does not return a value but may fail. Therefore, the monad Either carries two possible states: Right (without value) or Left (with an Error).

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