Inspect proxied requests from Nginx to Kestrel with Mitmproxy In previous blog posts, we saw how to proxy requests to an ASP NET Core application using Nginx. We saw that request headers also can be proxied with proxy_set_header In order to ease developme[...]

Midnight strikes, I lose the wager, woken by a screeching pager, Scarlet hue means issue’s major, major OOMing on the node. SSH into the victim, tail and grep per playbook’s dictum, ‘Til revealed is cache eviction as what crumbled ‘neath the load. Run a d[...]

SDK-Style project and project.assets.json Last week I encountered an issue with MSBuild while trying to run it from command line. The issue did not appear when using VisualStudio right click + build but only appeared when using msbuild.exe CLI directly wi[...]

Seeing the popularity of elmish architecture and attempts at implementations of backends based on it (or any unsupervised cooperative actor loops) I thought I’d share my thoughts. Desirable characteristics Most naive implementations of synchronous (HTTP/R[...]

ApiController attribute in ASP NET Core 2.1 ASP NET Core 2.1 brings a set a enhacements for Web API development, Web API being a service accessible via HTTP and returning result in Json format. Those enhancements aim to simplify the composition of those A[...]

Update NPM packages for frontend projects with npm-check-updates Frontend libraries progress very rapidly. After just one month, a project can see all its packages needing an upgrade. Today how we can achieve that in ways: install vs update Using npm-che[...]

SignalR Core with Angular Last week we saw how to Configure SignalR and get a server notifying a client built as Razor page via Websockets. We completed the post by having a fully functional backend setup with SignalR and authentication done via Resource [...]

Manage configurations with ASP NET Core on Ubuntu Managing configurations can be challenging. We cannot simply check-in in our repository secrets and connection strings and at the same time we want an easy way to maintain them. Today we will see how we ca[...]

Nginx 502 bad gateway after SSL setup When proxying a request to an underlying server, it is necessary to validate its SSL certificate. For example, if we have a process running on https://localhost:5001, we can configure Nginx to validate the certificate[...]

HTTPS with SSL for Nginx, Kestrel and Angular Internet is moving toward secure connections whereby HTTPS is a priority. Browsers are now warning users when navigating to non secured website. With this movement, Kestrel and ASPNET Core have adopted the men[...]