Відео

Hey Milan, huge fan of your videos. However, for this particular video, don't you think you should reconsider the choice of tool for hosting web applications from aws suite? Not only does the lambda cold start cause issues of increased start up time but also from the perspective of the web application having background services, the max run time limitations of lambda functions don't help much. Moreover looking at the benefits of lambda that you highlighted almost all of them are available with something like fargate beneath ECS. Please let me know your thoughts on this thanks.

can we do without a docker..?

How do you use the domain model modification, for example, in the order field, I need to change the data, but the content is not sure, how to make the modification method of the domain model

Dude nice video! thanks for sharing all your knowledge with all of us. Quick question, why do you prefer Postgres instead of MSSQL for mostly all your videos? Is it because of the open-source stuff?

Thanks a lot

How to generate the report with Blazor? pls (crystal or any)

Why am i getting an error when I want to take the user info System.InvalidOperationException: No authenticationScheme was specified, and there was no DefaultChallengeScheme found. The default schemes can be set using either AddAuthentication(string defaultScheme) or AddAuthentication(Action<AuthenticationOptions> configureOptions).

I'm a complete 0 in AWS. Before, I tried few times publishing Hello World on AWS using other tutorials and Chat GPT with no luck. Thanks to you now I have one up and running!

I don't like MassTransit because it creates a wrapper around the message. If it were possible to pass the service data not in the wrapper but in the message header, it would be ideal.

Interesting, quite straightforward. Pity theirs not a permeant free RDS tier.

the question is how can we show the errors on bootstrap modal ? and my project not API .net core mvc

Thanks for good idea for Friday's evening!)

Get the source code for this video for FREE → the-dotnet-weekly.ck.page/aws-lambda

Thanks 👍🏻

In domain module we can have some interface that is responsible for email check. And on creation, we can call this interface to check that email is valid. In this case domain doesn't know anything about implementation of this interface and doesn't need any repository or flag to be passed. So, as a result: Performance is okay, since under the hood we can use repository. Completeness is okay, since domain has all necessary logic. And purity is good as well, since domain doesn't have any dependency on outer modules. Not sure, if it's possible to write code this way in .Net, but for sure it's possible in Java.

None os these decorators (FromBody, FromQuery etc.) are necessary nowadays?

The problem with using the Result<T> pattern in C# is that the language doesn't give us the syntax to enforce it. Historically C# reference types have been "weak" in the sense that a string could be a (string or null). That has been fixed with nullable reference types. Now a value that could be null must be explicitly defined as being nullable (string?). But functions are still "weak" contracts. A function that returns a string can either (return a string OR raise an exception). Result<T> doesn't change that. A function that returns Result<T> can still (return Result<T> or raise an exception). We need some mechanism at the language level where the caller knows that when a function returns Result<T>, there is no possibility of an exception. That would be a "strong" contract. "async" kind of does this for "Task<T>". An async Task<T> function will only raise the exception when it is awaited. Unfortunately, a caller can't be confident that a function that returns Task<T> is an async function that won't raise an exception. Only the async keyword creates the state machine to wrap the exception, but a function can return Task<T> without using async, which could raise an exception directly. Perhaps this might be done with source generators or IL weaving? Are there any Result<T> implementations that provide this functionality of "strong" contracts?

Never missed one of your notifications and as always that was very helpful so thanks. keep up the good work

If the app restarts, will data from the cache still be persistent?

Always a good content quality! Thank you for sharing!

Why not have an author entity and let book have an author id column with a foreign key into the authors table modelBuilder.Entity<Book>() .HasOne<Author>() .WithMany(e => e.Books) .HasForeignKey(e => e.AuthorId) .IsRequired(); Book's `public Author Author` would become `public virtual Author Author` and, as previously stated, would need a `public int AuthorId` and Author would need to have a `public virtual ICollection<Book> Books` as well as a `public int Id` I understand this is an example just to show off the feature, but i just can't imagine any case where using .OwnsOne makes more sense than to use a separate entity with a navigation property enabled by a foreign key, especially if theres a chance that the owned entity might be used in multiple of the parent entities. are joins evil and no one told me?

Would definitely love you to cover this in a full video 👍 Sounds really useful.

I have two healthchecks. Can I trigger each of them separately on the HealthcheckUI side? redis like once every 10 seconds, mongo like once every 15 seconds

i got the dbcontext in different libraries. do i have to do the map in the api for all my queries?

great

Finally a video about this topic that actually makes sense and not a 20 minutes long time-waste.

I always had to created this funcionallity manually on the projects I've worked. This new hybrid cache feature will be a useful time-gaining feature.

What issue its solving?

How do you invalidate the cache?

why not create the ValueObjects as Records?

So .Net Aspire can't kill docker-compose and open telemetry?))

Awesome!! Love to see the channel! ❤

two interesting things i learned from your videos. 1. Vertical Slice architecture 2. Railway-oriented programming

Very nice! Microsoft strikes again

Full video please