Dec 21, 2018

Vegeta Load Test

Load testing helps catch problems which only appear in high load. A common use case of load testing is to load our API with an amount of request of two or three times higher than the usual load. This will provide confidence in our API ability to handle larger traffic. Today we will look into Vegeta, an open source HTTP load testing tool quick and easy to setup. In this post, I’ll demonstrate how quickly and easily we can load test our API endpoints.

AWS

Dec 14, 2018

Create React App And Mobx

I have been using state management frameworks for the past few years, mainly with Angular and NGRX. Today we will see how we can get started with Create-React-App using Mobx as a state management system.

React Mobx

Dec 07, 2018

Https With Letsencrypt And Certbot

Securing communication between client and server is a mandatory step when building web application. Thanks to Let’s Encrypt, it is now free to setup SSL certificate and with Certbot, the ACME protocol implementation available on Ubuntu, it is a five minutes job to get it to work with Nginx.

Azure NGINX Let's Encrypt

Nov 30, 2018

Rxjs From Chain 5 To Pipe 6

Last week I updated all my packages and realised that everything was broken! The reason why was that rxjs decided to move out of extensions on observable in favor of pipable functions in version 6.x. A major breaking change where majority if not all codebase built using rxjs needs to be changed. Today we will explore the reasoning behind this change.

NGRX

Nov 23, 2018

Entity Framework Core Gotchas

Last year I talked about Entity Framework Core, an easy and feature rich ORM which makes working with database in a .NET environment typesafe. But even though it makes things easy, there are ambiguous cases which can take us off guard. Today we will see four of this cases and how to deal with them.

DotNetCore CSharp

Nov 16, 2018

Primeng Loading Bar

In Angular, it is common practice to execute commands prior routing a page using guards and resolvers. Guards prevent the routing from occuring until the condition turns to true and resolvers prevent the routing from occuring until the data is returned. Those actions can take time to complete and during the time being, the component will not load leaving the user with an impression of unresponsiveness. Today we will see how we can implement a navigation loading bar for Angular using PrimeNG progress bar component.

Angular PrimeNG

Oct 26, 2018

Nginx Basic Authentication

Basic authentication provides an easy way to password protect an endpoint on our server. Today we will see how we can create a password file and use it to enable basic authentication on Nginx.

NGINX

Oct 12, 2018

Local Jenkins With Docker

CI/CD pipelines allow us to automatically build, test and deploy code changes. With Jenkins pipeline, the pipeline itself is generated from a file called the Jenkinsfile which, usually, is source controlled together with the source code repository. When we need to push new changes, what we would usually do, is test locally and then commit to the repository. From there, the Jenkins pipeline will trigger and build, test on the integration server and deploy to a testable environment (DEV/QA). But what do we do when the changes that we are making are on the Jenkinsfile itself? How do we test locally the validity of the Jenkinsfile or more simply, how do we try on a sandbox a Jenkins pipeline to learn how to write a Jenkinsfile? Today we will see how we can setup a sandbox with a full CI/CD deployment which can be quickly brought up and teared down for testing.

Docker

Oct 05, 2018

Docker Compose Sqlserver

Last week we saw how we could install and run an ASP NET Core application in a container, we saw how Visual Studio uses docker-compose to setup our services. Today we will see how we can use compose to setup a cluster composed by an ASP NET Core application container with a SQL Server container and how we can place in a third party process.

Docker

Sep 28, 2018

Docker Aspnetcore

Few weeks ago we saw how we could run ASP NET Core application on Ubuntu. This proving that a .NET Core Application can run on a Linux system, today we will be taking it a step further and see how we can deploy our application in a Docker Linux container.

DotNetCore Docker
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