https://github.com/benfoster/o9d-guard

Opinionated Guard Extensions for .NET
https://github.com/benfoster/o9d-guard

Last synced: 14 days ago
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Opinionated Guard Extensions for .NET

• Host: GitHub
• URL: https://github.com/benfoster/o9d-guard
• Owner: benfoster
• License: mit
• Created: 2021-02-13T07:09:08.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2021-09-16T13:12:09.000Z (over 3 years ago)
• Last Synced: 2025-04-10T10:13:46.858Z (17 days ago)
• Language: C#
• Homepage: https://benfoster.github.io/o9d-guard/
• Size: 514 KB
• Stars: 13
• Watchers: 4
• Forks: 2
• Open Issues: 18
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Codeowners: .github/CODEOWNERS

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README

        


# Guard

[![NuGet](https://img.shields.io/nuget/v/O9d.Guard.svg)](https://www.nuget.org/packages/O9d.Guard) 

[![NuGet](https://img.shields.io/nuget/dt/O9d.Guard.svg)](https://www.nuget.org/packages/O9d.Guard)

[![License](https://img.shields.io/:license-mit-blue.svg)](https://benfoster.mit-license.org/)

![Build](https://github.com/benfoster/o9d-guard/workflows/Build/badge.svg)

[![Coverage Status](https://coveralls.io/repos/github/benfoster/o9d-guard/badge.svg?branch=main)](https://coveralls.io/github/benfoster/o9d-guard?branch=main)

[![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=benfoster_o9d-guard&metric=alert_status)](https://sonarcloud.io/dashboard?id=benfoster_o9d-guard)

[![GuardRails badge](https://api.guardrails.io/v2/badges/benfoster/o9d-guard.svg?token=461e73c50b8d8bfaf110ed2086379a8308a4fb8dd342334e79dcadd2dccf0f83&provider=github)](https://dashboard.guardrails.io/gh/benfoster/65586)

[![CodeScene Code Health](https://codescene.io/projects/12974/status-badges/code-health)](https://codescene.io/projects/12974)

Guard is an o[pinionate]d guard/assertions library for .NET that simplifies argument checking. 

**Without Guard:**

```c#

public Customer(string name, PhoneNumber phone)

{

    if (string.IsNullOrWhiteSpace(name))

    {

        throw new ArgumentException("Name must be provided required", nameof(name));

    }

    Name = name;

    Phone = phone ?? throw new ArgumentNullException(nameof(phone));

}   

```

**With Guard:**

```c#

public Customer(string name, PhoneNumber phone)

{

    Name = name.NotNullOrWhiteSpace(nameof(name));

    Phone = phone.NotNull(nameof(phone));

}

```

## Quick Start

Add the O9d.Guard package from [NuGet](https://www.nuget.org/packages/O9d.Guard)

```

dotnet add package O9d.Guard

```

If you want to use a pre-release package, you can download them GitHub packages.

Import the `O9d.Guard` namespace and start using the extension to validate arguments.

### Pre-release Packages

Pre-release packages can be downloaded from [GitHub Packages](https://github.com/benfoster?tab=packages&repo_name=o9d-guard).

```

dotnet add package O9d.Guard --prerelease --source https://nuget.pkg.github.com/benfoster/index.json

```

[More information](https://docs.github.com/en/packages/guides/configuring-dotnet-cli-for-use-with-github-packages) on using GitHub packages with .NET.

## Building locally 

This project uses [Cake](https://cakebuild.net/) to build, test and publish packages. 

Run `build.sh` (Mac/Linux) or `build.ps1` (Windows) To build and test the project. 

This will output NuGet packages and coverage reports in the `artifacts` directory.

## Contributing

To contribute to O9d.Guard, fork the repository and raise a PR. If your change is substantial please [open an issue](https://github.com/benfoster/o9d-guard/issues) first to discuss your objective.

## Docs

The Guard documentation is built using [DocFx](https://dotnet.github.io/docfx/). To build and serve the docs locally run:

```

./build.sh --target ServeDocs

```

This will serve the docs on http://localhost:8080.