To efficiently work with and transform lists in Elixir, you will likely need utilize a list reversing function from time to time. Your best bet is to reach for the Erlang implementation which is available as part of the lists module. Here are a couple examples of how to use it: 1 … | Continue reading

The following snippet allows you to extract the SHA1 of the git commit from within elixir. It is useful to attach the SHA1 to your release or code so that if therea are any issues you can quickly checkout the commit and look into it. You can also get the branch name if required. … | Continue reading

When running tests, we sometimes want to know which functions are being executed. You could write custom dbg/1 statements in each of the functions: 1def function_a do 2 dbg(:function_a) 3end 4 5def function_b do 6 dbg(:function_b) 7end 8 9... 10 11def function_z do 12 … | Continue reading

Sometimes you want to find out information about your Repo configuration. You can dive into the config files and ENV variables to sort out what's being used… or you can take the easier path! In an iex session (that has your Repo available), access the configuration via Repo.confi … | Continue reading

Imagine you are using streamed downloads in your Laravel controllers like this: 1use App\Services\GitHub; 2 3return response()->streamDownload(function () { 4 echo GitHub::api('repo') 5 ->contents() 6 ->readme('laravel', 'laravel')['contents']; 7} … | Continue reading

Ash Framework is ~4 years old, and we've only just now introduced the ability to generate resources, or new Elixir projects with Ash installed using a CLI. We've added these thanks to our latest project Igniter. Before I talk about our new generators, however, I'd like to talk ab … | Continue reading

Integrate Phoenix PubSub with LiveView to build real-time features capable of broadcasting updates across a set of clients. ⚠️ This post links to an external website. ⚠️ | Continue reading

RSS has long had the element that can be used to include the contents of an . For example, you could use it to include the entire contents of a blog post; or just a summary of it. However, the RSS element is only suppose to be used to include plain text data. This obviously lim … | Continue reading

PostgreSQL queries can be sped up by creating the right indices, and making sure that the indices are being used. It's a tale as old as SQL databases - there's a critical code path being hit many times per second, but its queries are inexplicably slow. ⚠️ This post links to an ex … | Continue reading

I've been using GitHub's Dependabot since it was released around 4 years ago, and to a large extent, it's been great. Except for one thing: the sheer amount of pull requests Dependabot would open for dependency updates. For some of my repositories it became more of a chore to kee … | Continue reading

When I worked as a contractor to the US government at ad hoc, I was fortunate enough to get the opportunity to design large parts of a relaunch of medicare plan compare, the US government site through which hundreds of thousands of medicare recipients purchase their health care p … | Continue reading

The following are instructions for using the erlang core plugin. This is used when there isn't a git plugin installed named "erlang". The code for this is inside the mise repository at ./src/plugins/core/erlang.rs. ⚠️ This post links to an external website. ⚠️ | Continue reading

Documentation for FakerPHP / Faker randomDigit# Generates a random integer from 0 until 9. echo $faker->randomDigit(); // an integer between 0 and 9 randomDigitNot# Generates a random integer from 0 until 9, excluding a given number. echo $faker->randomDigitNot(2); // 0, 1, 3, 4, … | Continue reading

I probably hate writing code in your favorite programming language, whatever it may be. This is because I get frustrated by basically all of the top 10 languages you'll find listed anywhere for various reasons. Do I hate programming in Python? You bet I do. "But it's Python! Pyth … | Continue reading

We spend a lot of time advising startups. Though one-on-one advice will always be crucial, we thought it might help us scale Y Combinator if we could distill the most generalizable parts of this advice into a sort of playbook we could give YC and YC Fellowship companies. Then we … | Continue reading

The 2-page login pattern is becoming pervasive. Here are the reasons behind this design choice and alternative solutions to create a more efficient and user-friendly authentication experience. ⚠️ This post links to an external website. ⚠️ | Continue reading

When working on multiple tasks, it's important to consider performing them concurrently. However, when using concurrency, we need to be careful not to overload our system resources. In this article, we will cover the following: What is concurrency? How can we use concurrency in E … | Continue reading

At Octomind, we use AI agents with multiple LLMs to automatically create and fix end-to-end tests in Playwright. Until just a few months ago, we did it with the LangChain framework. In this post I'll share our struggles with LangChain and why replacing its rigid high-level abstra … | Continue reading

Today, I was having issues connecting from a Laravel app to a PostgreSQL database on Digital Ocean. The error message I was getting was the following: SQLSTATE[08006] [7] could not connect to server: Resource temporarily unavailable. The weird thing was that it was not happening … | Continue reading

I was doing performance testing on a Laravel application and wanted to see the SQL queries that were being executed. As I was running the tests in a terminal, I wanted to see the queries in a nicely formatted way. I found a package that does this, but it's not Laravel-specific. I … | Continue reading

Sometimes, you have these .pkg installer files on macOS. Today, I needed to extract them to see what's inside. Here's how you can do it: 1xar -xf MyInstaller.pkg If there is a file called Payload in there, you need to unpack it again: 1cat Payload | gunzip -dc | cpio -i Inspira … | Continue reading

You can uninstall the Panda Adaptive Defense or Endpoint Protection software manually from the operating system?s control panel, or remotely from the Computers area or from the Computer protection status and Licenses lists. ⚠️ This post links to an external website. ⚠️ | Continue reading

I wanted to demonstrate the relationship between the logical model and a physical model. We're going to design a commonly seen use case: many yes/no attributes of a single anchor (in our case, Restaurant). Then we'll discuss how the physical tables would be designed. We'll see th … | Continue reading

To import CSV files into SQLite, you can do this in your terminal: 1sqlite3 mydatabase.db 2SQLite version 3.43.2 2023-10-10 13:08:14 3Enter ".help" for usage hints. 4sqlite> .import --csv mydata.csv table_name If the table already exists and the field names don't match the heade … | Continue reading