Softsapiens

import arrow.core.Nel
import arrow.core.raise.Raise
import arrow.core.raise.recover
import arrow.fx.coroutines.parZipOrAccumulate

object ApplicationError
object UserLegalId
object User
object DepartmentCode
object Department

Softsapiens

import reactor.core.publisher.Mono
import java.util.concurrent.Executor


fun noTrampolining(): Mono<Int> {
    var initial = Mono.just(0)
    (0..5000).forEach { i ->
        initial = initial.map { i }
    }
    return initial

Softsapiens

Thread Pools

Thread pools on the JVM should usually be divided into the following three categories:

1. CPU-bound
2. Blocking IO
3. Non-blocking IO polling

Each of these categories has a different optimal configuration and usage pattern.

Softsapiens

# Export as Text Table
aws --region XXXXXXXXX cognito-idp list-users --user-pool-id XXXXXXXXXXXXX --output table > ~/users.txt

# Export as JSON
aws --region XXXXXXXXX cognito-idp list-users --user-pool-id XXXXXXXXXXXXX --output json > ~/users.json

# Export User Pool with more than 60 users (pagination)
aws --region XXXXXXXXX cognito-idp list-users --user-pool-id XXXXXXXXXXXXX --pagination-token INCREDIBLYLONGSTRINGHERE --output json > ~/users-2.json

Softsapiens

use std::{
    fs::File,
    io::{Read, Write},
    time::Instant,
};
use tokio::task::{self, JoinHandle};

async fn compute() {
    let handles: Vec<JoinHandle<_>> = (0..1000)
        .map(|_| {

Softsapiens

package main

import (
	"fmt"
	"os"
	"runtime"
	"sync"
	"time"
)

Softsapiens

package reflect_cats_test

import (
	"encoding/json"
	"net/url"
	"reflect"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"

Softsapiens

// Save as ~/.ammonite/predef.sc
// To use fs2 from ammonite repl, type `load.fs2` from repl prompt.
// You'll get all fs2 & cats imports, ContextShift and Timer instances
// for IO, and a globalBlocker

import $plugin.$ivy.`org.typelevel:::kind-projector:0.11.0`

if (!repl.compiler.settings.isScala213)
  repl.load.apply("interp.configureCompiler(_.settings.YpartialUnification.value = true)")

Softsapiens

SPC s c remove highlight

**** Files manipulations key bindings
Files manipulation commands (start with ~f~):

| Key Binding | Description                                                    |
|-------------+----------------------------------------------------------------|
| ~SPC f c~   | copy current file to a different location                      |
| ~SPC f C d~ | convert file from unix to dos encoding                         |
| ~SPC f C u~ | convert file from dos to unix encoding                         |

Softsapiens

Lets say i want to rebalance my-sample-topic topic on my kafka cluster

Create topcis.json

{
  "version": 1,
  "topics": [
 { "topic": "my-sample-topic"