Skip to content

One more library for MediatR. It allows you to configure the most commonly used PipelineBehaviors in a very simple way.

License

Notifications You must be signed in to change notification settings

pascal-libaud/One.More.Lib.For.MediatR

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

35 Commits
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

One More Lib For MediatR

CI NuGet

As the name suggests, a new library that extends MediatR with integrated PipelineBehavior:

  • Performance Logger
  • MemoryCache
  • Validation with FluentValidation
  • Retry Pattern with Polly

Installing One.More.Lib.For.MediatR

Link to the nuget package

We recommend using NuGet:

Install-Package One.More.Lib.For.MediatR

Or via the .NET Core command line interface:

dotnet add package One.More.Lib.For.MediatR

Performance Logger PipelineBehavior

How to configure it?

The simplest way:

builder.Services.AddMediatRExtensions(cfg => cfg.PerformanceLoggerSupport = true);

If you want to configure it:

builder.Services.AddMediatRExtensions(cfg => cfg.AddPerformanceLoggerSupport(500));

How yo use it?

Nothing to do. Requests exceeding th threshold will be logged.

MemoryCache PipelineBehavior

How to configure it?

The simplest way:

builder.Services.AddMediatRExtensions(cfg => cfg.MemoryCacheSupport = true);

If you want a complete configuration:

builder.Services.AddMediatRExtensions(cfg => cfg.AddMemoryCacheSupport(slidingExpiration: TimeSpan.FromMinutes(10), priority: CacheItemPriority.Low));

All the possible options are:

  • DateTimeOffset? AbsoluteExpiration
    
  • TimeSpan? AbsoluteExpirationRelativeToNow
    
  • TimeSpan? SlidingExpiration
    
  • CacheItemPriority Priority
    

You can also create a specific configuration with the same options for a given request:

builder.Services.AddMediatRExtensions(cfg =>
{
  cfg.AddMemoryCacheSupport(slidingExpiration: TimeSpan.FromMinutes(10), priority: CacheItemPriority.Low);
  cfg.AddMemoryCacheSupportOverrideFor<GiveRequest>(priority: CacheItemPriority.High);
}

How yo use it?

Just add [MemoryCache] attribute on requests classes or records.

[MemoryCache]
public class GetUserByName : IRequest<User?>
{
    public string Name { get; set; }
}

Validation with FluentValidation

How to configure it?

There is not simplest way because you need to enter the assemblies to be scanned for FluentValidation:

builder.Services.AddMediatRExtensions(cfg => cfg.AddFluentValidationSupport(new[] { typeof(Program).Assembly }));

How to use it?

Nothing to do, just create Validation rules. If a rule is not respected a ValidationException will be thrown.

Retry Pattern with Polly

How to configure it?

The simplest way:

builder.Services.AddMediatRExtensions(cfg => cfg.RetrySupport = true);

If you want to configure it:

builder.Services.AddMediatRExtensions(cfg => cfg.AddRetrySupport(retryCount: 3, retryDelay: 100));

When to use it?

  • For example, when you call on external resources and the infrastructure can sometimes have temporarey failures.
  • Or when you want to deal with the database and there may be temporary conflicts.

How to use it?

Just add [RetryPolicy] attribute on requests classes or records.

[RetryPolicy]
public class GetProduct : IRequest<Product>
{
    public Guid ProductId { get; set; }
}

Or you can override default values by passing them in the RetryPolicy Attribute

[RetryPolicy(OverrideRetryCount = true, RetryCount = 5)]
public class GetProduct : IRequest<Product>
{
    public Guid ProductId { get; set; }
}
[RetryPolicy(OverrideRetryDelay = true, RetryDelay = 200)]
public class GetProduct : IRequest<Product>
{
    public Guid ProductId { get; set; }
}

About

One more library for MediatR. It allows you to configure the most commonly used PipelineBehaviors in a very simple way.

Topics

Resources

License

Stars

Watchers

Forks

Packages

No packages published

Languages