Adding a very naive in-memory cache to my Haskell web app

How I added very naive in-memory caching to my haskell webapp

vados

28 minute read

tl;dr - I added some caching to an app I’m writing in Haskell using Servant. The implementation is pretty naive, but I’ve seen some speedups (as one would expect from skipping a database access), and am glad I was able to build such a simple solution in a language as expressive as haskell. Skip to the end TLDR section to see all the code laid out!

Adding Sqlite Powered Fts Search To A Servant Powered Haskell App

Adding light and easy Full Text Search with SQLite3 to my servant-powered web app

vados

17 minute read

tl;dr - You may not need a big robust beautifully crafted DB like Postgres every time you build an app. Sometimes SQlite is probably enough. SQLite even provides Full Text Search addons in the way of FTS3/4 and FTS5, so that’s cool too – skim through the article for code snippets on the why/how I’m using SQLite + FTS3/4.

Within seconds of using Pingdom I got email spam

This just happened, and I wonder how often it happens

vados

3 minute read

tl;dr - I do a web speed test on this site, get spam from a firm that does website speed consulting, I rant a little bit about it, then share a little bit about a startup idea I had at the end. I’ll be back to regular “exploring Kubernetes” related posts tomorrow!

Stop Using React

BSD + PATENTS.md != F/OSS. Stop using React.

vados

6 minute read

tl;dr The BSD + PATENTS.md pattern is not F/OSS. Facebook is trying to goad you into entering a mutually assured destruction patent stalemate, but you don’t have nukes. They do. Stop using React, there are other better alternatives.

Research Idea: Maintaining A Write Ahead Log For Application Runtime State

Exploring the stepladder of features that lead to well-engineered backends

vados

13 minute read

tl;dr:What if there was a write-ahead-logging layer above/outside the database? Then you could get CQRS+ES capabilities and assurnaces from your database without rewriting, and even abstract out the database as a whole, going as far as to create your own DSL for application-level changes, ADD_USER instead of INSERT ... INTO USERS ...*