Jun Kim – Discover more about Jun Kim

NVM Install

December 8, 2023December 8, 2023Jun Kim

What is NVM? Node Version Manager (NVM), is a tool for managing multiple Node versions on your machine. For example, if you use a Node version of 10.0.0 for a project that…Continue readingNVM Install

Clean Coding

A webhook and a message queue are both ways of transferring data from one to another application. Webhooks A webhook allows that one application sends a message to another application…Continue readingWebhooks vs Message Queue

.NET, Clean Coding

How to Implement Dependency Injection to WPF Application

November 8, 2023November 8, 2023Jun Kim

Add the NuGet packages to the project Add Microsoft.Extensions.DependencyInjectionMicrosoft.Extensions.Hosting Add Microsoft.Extensions.Hosting Modify App.xaml.cs file

Angular

Angular Common Command

October 31, 2023October 31, 2023Jun Kim

How to install angular CLI globally/locally npm install @angular/cli@{version-to-install} — location=global/local Ex. This is to install version 16.1.6 globally.npm install @angular/cli@16.1.6 –location=global How to create new Angular Application by angular…Continue readingAngular Common Command

Database, Oracle

How to combine multiple rows into a single string in Oracle

October 4, 2023Jun Kim

This was the question in my mind that how to concatenate multiple rows into single column. We can do with built-in function called ‘listagg’.This is the example of the code

.NET, Clean Coding

How to Measure execution time in C#

July 11, 2023July 11, 2023Jun Kim

This Requires System.Diagnostics name space.This might need to be converted from milliseconds to other unit. 2. By using TimeSpan

.NET, Clean Coding

To use Attribute routing

April 21, 2023April 21, 2023Jun Kim

This is how to use .NET API Attribute Routing. We can write action method to accept just parameter with query string or object. This is another way of passing parameter.…Continue readingTo use Attribute routing

Clean Coding, Cloud

How to update AWS API Gateway Resource Name

February 3, 2023February 3, 2023Jun Kim

I wanted to update the endpoint name on the AWS API gateway. I tried to find the options through AWS Console, but failed. I couldn’t find the way.I found that…Continue readingHow to update AWS API Gateway Resource Name

.NET, Uncategorized

How to show the JSON Result with 400 error Code.

March 22, 2022March 22, 2022Jun Kim

I tried to find the way to return 400 error code with JSON error result. I think this is the best way and easy to implement. Create the custom class…Continue readingHow to show the JSON Result with 400 error Code.

.NET, Clean Coding, Database

Update entity with Auto Mapper

March 11, 2022March 11, 2022Jun Kim

When we try to update the existing date with Entity Framework, you might to following steps. In above case, application will get following error. To resolve this error, this .AsNoTracking()…Continue readingUpdate entity with Auto Mapper