Dr. Christian Geuer-Pollmann chgeuer

Entra Domains

Mix.install([
  {:req, "~> 0.5.8"}
])

Libraries

Postgrex on Azure: How to connect to an Azure PostgreSQL DB from Elixir

Mix.install([
  {:x509, "~> 0.8.10"},
  {:postgrex, "~> 0.19.3"},
  {:req, "~> 0.5.7"},
  {:livebook_env, "~> 1.0"},
  {:kino, "~> 0.14.2"}
])

A simple .NET Core 8 sample running on Linux to show AES GCM encryption...

using System.Security.Cryptography;
using System.Text;

// https://learn.microsoft.com/en-us/dotnet/standard/security/cross-platform-cryptography#authenticated-encryption
Console.Out.WriteLine($"Is supported: {AesGcm.IsSupported}");

Wetterdaten

Mix.install([
  {:req, "~> 0.5.6"},
  {:explorer, "~> 0.9.0"},
  {:kino_explorer, "~> 0.1.21"},
  {:iconv, "~> 1.0"},
  {:floki, "~> 0.36.2"}
])

Livebook on WSL2

Compile Erlang and Elixir from scratch

Install Linux dependencies

autoconf
automake
build-essential
gcc

Entra Domain Discovery

Mix.install([
  # {:ex_token_toys, path: "C:\\github\\chgeuer\\ex_token_toys"}
  {:ex_token_toys, github: "chgeuer/ex_token_toys"}, 
  {:kino, "~> 0.12.3"}
])

Sample integrating Bandit and Req/Finch

Mix.install([
  {:finch, "~> 0.17.0"},
  {:req, "~> 0.4.8"},
  {:bandit, "~> 1.1"}
])

A notebook to use the local MSAL cache to talk to Azure

Mix.install([
  {:jason, "~> 1.4"},
  {:jsonrs, "~> 0.3.3"},
  {:req, "~> 0.4.8"},
  {:jose, "~> 1.11"},
  {:jose_utils, "~> 0.4.0"},
  {:explorer, "~> 0.7.2"},

	/*
	<Project Sdk="Microsoft.NET.Sdk">
	<PropertyGroup>
	<OutputType>Exe</OutputType>
	<TargetFramework>net8.0</TargetFramework>
	<ImplicitUsings>enable</ImplicitUsings>
	<Nullable>enable</Nullable>
	</PropertyGroup>
	<ItemGroup>
	<PackageReference Include="Microsoft.Identity.Client" Version="4.64.0" />

	unsafe static byte[] DoublesToBytes(double[] value)
	{
	var bytes = new byte[8*value.Length];
	fixed (byte* b = bytes)
	{
	for (int i = 0; i < value.Length; i++)
	{
	var v = value[i];
	((int)(b + 8i)) = (int*)&v;
	((int)(b + 8i+4)) = (((int*)&v) + 1);