Verside | The Other Side

Hi, I am Ferdi Pratama aka Verside a Musician & Software Engineer with 10 years of experience. Expertise in C#, ASP.NET, WPF, and API development. Passionate about clean code, architecture, and collaborative development.

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Treblle is an API intelligence platform that enables engineering and product teams to build, ship, and govern APIs within a unified environment.

I just spent the weekend exploring Treblle's latest update, and it's pretty impressive.

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"I will never forgot the way they treated me when i was at my lowest."

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"Masa depan adalah ruang penuh kemungkinan, bukan ancaman."

In my “opinion” Life is an adventure, a gift which is also time bound, physically. I’m not religious, but can’t help but think there is a lot more to what we know and see. With this journey a lot will be confronted, some good, some bad, some our own doing some by others.

However what we do with what we have will be the fulfillment of the energy we put into it. Whether that be by way of education, career, family, relations, focusing on self or others will determine the reward of our efforts. We and only we determine our endless possibilities.

I would suggest that it becomes limitless by what we create with the “memory” aspect of our adventure, by way of the amazing potential that is within us. Our struggle to understand, love and happiness, goes a long way towards fulfillment, opening up limitless possibility, beyond our physical presence.

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IEnumerable Visualizer with Intellisense. In this case using EF Core with a value converter😱❤️

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Important Data Processing System (OLTP vs OLAP)

Not all databases are the same, there are different types of databases for specific workloads, let's understand two of them.

📍 OLTP (Online Transactional Processing):

Processing large volumes of small, individual transactions in real-time, such as bank transactions

📍 OLAP (Online Analytical Processing):

Analyze large volumes of data to support BI such as forecasting

Almost all OLTP systems are row-based, and all of the data are stored row by row.

So when you query any data, it will pull the entire row, even if you just select one column.

So pulling one column = scanning the entire row and then selecting the column

Not efficient!

I made the same mistake early in my career, I ran an Analytics query to get sum/avg on millions of rows

The database server size was tiny and took everything down.

OLTP Examples: MySQL, PostgreSQL, Oracle

On the other hand, the OLAP system is mainly column-based.

So instead of pulling all of the columns, it will only pull columns that are required for analysis.

Specially designed for analysis work.

OLAP Examples: BigQuery, Redshift, Snowflake

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FluentValidation: Stop checking rules on the first failure!

By default, it checks all rules and aggregates error messages, it's more efficient to set CascadeMode either on the class level or rule chain, especially when using `MustAsync` and async operations.

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If you want to rate limit authenticated users, you can use the user's ID as the rate limit partition key.

Here's what that would look like when defining a Fixed Window policy. 👇

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👉 FOR PEOPLE DOING PEN-300:

You can run csharp code directly in @kalilinux

just install mono-csharp-shell

Here's the Caesar cipher in c# running directly from Kali's shell, no need to have a separate Windows machine.

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Here are two ways how you could organize vertical slices:

1) Each class has its file, but they're all organized in the same folder. This is the GetActivity example.

2) There's one file with nested classes inside. This is the CreateActivity example.

Which one would you use?

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Test Fast and Break Things

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Entity Framework 9 data seeding ⬇️

EF 9 introduces a new and convenient way to handle data seeding, allowing devs to easily populate a database with initial data.

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Top 3 Built-in Generic Delegates in C#: Func, Action, and Predicate?

Delegates is a pointer to function. It helps us in communication and call backs.

We have three built in generic delegates:

1) Func: It takes a generic input and returns generic output

2) Action: It takes a generic input and returns nothing

3) Predicate: It takes a generic input and always returns Boolean

These generic delegates are used extensively in built in classes of .NET and we can use them to make our delegates shorter

Do you wanna see them in real example:

1) Create a class Student with some properties

2) Make a list of Student type

3) Add some values

Following LINQ methods uses delegates:

.Select method takes Func

.ForEach method takes an Action

.FindAll method takes a Predicate

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How often do you use them in code ?

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Getting started with BenchmarkDotNet is easy

1. Install BDN from NuGet

2. Create a class to contain your methods

3. Use [Benchmark] attribute on relevant methods

4. Call BenchmarkRunner .Run on your class

5. Run it without debugging and in release mode

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released mod-atrg v.4.0 (free) 😉🫶

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Which way Java/C# developer?