cpursley

PostgreSQL is Enough

• Simplify: move code into database functions
• Just Use Postgres for Everything
• PostgreSQL is the worlds’ best database
• Postgres is eating the database world
• Hacker News discussion

Background and Cron Jobs

tjarvstrand

import io.opentelemetry.api.baggage.Baggage
import io.opentelemetry.api.baggage.propagation.W3CBaggagePropagator
import io.opentelemetry.context.propagation.TextMapGetter
import io.wolverinebeach.zio.telemetry.Tracing
import zio.Trace
import zio.ZIO
import zio.ZIOAspect
import zio.http.*

import java.lang

btlines

package effects

import cats.{MonadError, StackSafeMonad}

import scala.concurrent.{ExecutionContext, Future}
import scala.util.{Failure, Success, Try}

final case class F[+E, +A](value: Future[Either[E, A]]) extends AnyVal {

  def fold[B](fe: E => B, fa: A => B)(implicit ec: ExecutionContext): Future[B] = value.map {

domnikl

tasks.withType<Jar> {
    manifest {
        attributes["Main-Class"] = "com.example.MainKt"
    }
}

marksteve

Building pgModeler in MacOS with Homebrew

The official installation instructions for pgModeler recommends installing Xcode and the Enterprise DB distribution of Postgres to fulfill its build requirements. Luckily, Homebrew's got us covered!

1. Checkout the source

   git clone https://github.com/pgmodeler/pgmodeler.git
   

linasm

import java.time.{LocalDate, LocalDateTime, LocalTime}

/*case */class FullName(val first: String, val last: String)

object FullName {
  def apply(first: String, last: String): FullName =
    new FullName(first, last)

  def unapply(full: FullName): Some[(String, String)] =
    Some((full.first, full.last))

smarter

Generalized Algebraic Data Types in Scala

Basic GADTs

Here's an ADT which is not a GADT, in Haskell:

data Expr = IntExpr Int | BoolExpr Bool

ursuad

Kafka Topics

List existing topics

bin/kafka-topics.sh --zookeeper localhost:2181 --list

Describe a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic mytopic

Purge a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic mytopic --config retention.ms=1000

... wait a minute ...

lachezar

/*
 * Copyright (C) 2015 Jared Rummler <jared.rummler@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

ejhayes

Install Prose Theme

This is based on: http://stevelosh.com/blog/2010/02/my-extravagant-zsh-prompt/

How to get up and going

• Install iTerm2 from here: http://www.iterm2.com/#/section/downloads
• Import better colors into profile of iTerm2 (Preferences > Profile > Default > Colors > Load Presets > Import)