One of blogs that I enjoy reading is The Daily WTF. Recently there was this article that highlighted some weird Geoinformatics WTF. What was interesting was that the comments on this post revolved around the performance of counting digits. Should somebody use Math.Log10 or do some basic counting. 1var digits = 0; …

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Software development and deployment is very much like an adventure game. Where you're faced with puzzles that might take you a day to solve, by picking up pieces and stumbling around in a dark room. Once you've figured it out, you could go back and solve the puzzle in 10 minutes. One of the manage challenges with …

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Short post -- ended up switching from sqlx to db.v3 since I felt that the sqlx layer was more likely to be error prone. db.v3 example 1func (u *UserService) UpdateUser(user *model.User, args struct { 2 Name *string 3 Email *string 4 Password *string 5}) (*model.User, error) { 6 update := make(map[string]interface{}) 7 …

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Performance of JavaScript object reduce Just a short post to look at assumptions. A few weeks ago was having one of those classic debates with a co-worker about the performance of object construction. Since with ES6 it is very easy to write: 1const obj = data.reduce((acc, [k, v]) => ({ ...acc, [k]: v }), {}); I had …

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I recently just fought my way through getting OpenVPN community edition running on our AWS VPC environment and wanted to share so that other can learn. There are a few key take aways and I'm just going to focus on the key elements. Past experience has shown that you don't want to use 192.168.X.X or 10.0.X.X as your VPN …

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The classic problem in cloud engineering is that you have a bunch of API keys, secrets and passwords you need to have available to your code but not available to others. The ideal solution looks like: You have your secrets in Git so you can merge them into config files They're not availble to anybody who gets a copy of …

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TL;DR version - Use UUIDs, but make them save space. Generating Unique IDs Do you key your whole system by database generated IDs that are autoincrementing integers. As you probably know that means that your APIs and endpoints are ready targets for somebody who wants to test lots of differt IDs against them. After all …

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Writing a react and redux appliction is a great experience, we all have seen the vision of great applications. However every time you sit down to work on your application there are times that the boilerplate is killing you. In most Redux applications you start seeing it very quickly, since there are great initial demos …

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This is really just a short post saying I discovered a really handy MacOS/Linux tool I hadn't seen before. Autoenv is a very handy tool for managing environments. Why would you need this? If you've ever done any quantity of Python or Go work you're probably using virtualenvwrapper or gvm to manage all of the different …

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GraphQL DateTime Scalar Value Strings are not your friend when it comes to date time types. The problem is that with the naive definition you'll get the wrong value. For starters the naive definition looks like this: 1// GraphQL 2// type Object { 3// updated_at String 4// } 5// 6 7// The Go structure definition 8struct …

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