Do I Need MediatR in Vertical Slice Architecture?

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Is MediatR a must-have when implementing Vertical Slice Architecture?
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Опубликовано:

27 сен 2024

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Комментарии : 12

@krccmsitp2884 9 месяцев назад

When you don't need multiple different pipelines, applying the Template Method pattern to your handlers is a good alternative to MediatR.

@anatolia23 8 месяцев назад

I'm surprised that the majority of developers still use reflection-based libraries. There is a powerful concept called 'Source Generator' in C#, and many libraries already use it, such as Mediator and Mapperly. Just use them and discover performance gain!

@iliyan-kulishev 11 месяцев назад

What can be an argument for NOT using MediatR, even if you do VSA and need pipeline behavior for your handlers? I've heard people say that performance suffers due to the indirection and handler discovery done via reflection.

@gui.ferreira 10 месяцев назад

Performance can be a reason, however, not to the point that it's not a concern for 95% of the applications for sure. To me, the biggest reason is the simplicity. Bringing patterns that are not needed is adding complexity to the design.

@jorgepedraza1275 9 месяцев назад

Any repo related with this video? 🤔

@gui.ferreira 9 месяцев назад

Hi! Yes. You can grab it as a Patron: patreon.com/gsferreira

@foonlam7134 11 месяцев назад

Hi Gui, I have a controller method that receives a process message request and calls many services to do many things. if I implement a mediator handler how will I put this code in a handler. Videos only show the simple method that does only 1 thing and not one that needs to call many services to read and write data during the processing. Can you help?

@gui.ferreira 11 месяцев назад

Hi! I think I can record a video on that. Do you mind sharing which business problem are you solving?

@foonlam7134 11 месяцев назад

@@gui.ferreira I'm trying to process a message received from an efpos terminal for purchase of a product. There are multiple validations and calculations eg the discount we have to give based on the product, then we have to call external apis to update the balance of the credit card and then on success we gave to create the transaction into the database and update the user's account as well as send an acknowledgement to the terminal of the success or failure of the purchase

@abhinavkapoor321 5 месяцев назад

One possibility is to register all handlers . And you can find the handler using IServiceProvider in Controller. The problem is that now your controller knows who is the handler, this is hidden with MediatR

@AboutCleanCode 11 месяцев назад

I really like your recommendation to start simple and to not marry a framework or library right from the beginning of the project. 👍Of course battle proven libraries can give a lot of benefits but we should always make a conscious decision whether those benefits are actually needed - because benefits never come without disadvantages, right? 😉➡ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JGgeoB-tXJw.html

@gui.ferreira 11 месяцев назад

As it's common to say: "it depends"