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from datetime import datetime, timedelta
import os
import requests
from prometheus_client.parser import text_string_to_metric_families


PUSHGATEWAY_METRICS_URL = "https://xxx.com/metrics"
PUSH_TIME_METRICS_NAME = "push_time_seconds"

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Static typing

Able to raise error when the args does not match with predefined type

# from dataclasses import dataclass
from pydantic.dataclasses import dataclass


@dataclass

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SQL Antipattern

1. Jaywalk

Purpose

store attribute that has multiple values

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What's eBPF?

kernel technology that allows developers to write custom codes that can be loaded into the kernel dynamically.

it's used for:

• performance tracing
• networking
• detecting malicious activity

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from typing import List
from pydantic.dataclasses import dataclass
from fastapi import APIRouter, FastAPI
from fastapi.middleware.cors import CORSMiddleware
import uvicorn
from pydantic import BaseModel


# Domain Layer
# Domain Object (Entities & Value Objects)

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This document is written based on below:

Apache Kafka Series - Learn Apache Kafka for Beginners v3 https://learning.oreilly.com/course/apache-kafka-series/9781789342604/ by Stéphane Maarek

Kafka in 5min

Messaging queue benefits

• able to adjust protocols (convert TCP, HTTP, FTP etc) into what the subscriber wants
• able to adjust data formats (binary, csv, json, avro, protobuf)

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import java.io.InputStream;
import java.io.FileInputStream
import java.io.File;
import javax.xml.transform.stream.StreamSource

def hudson = hudson.model.Hudson.instance;

Jenkins.instance.getAllItems(AbstractProject.class).each {job ->
  if (job.fullName.startsWith("YourFolder/")) {
    def configXMLFile = job.getConfigFile();

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inspired by https://blog.appsignal.com/2019/03/19/elixir-alchemy-recursion.html

defmodule Bench do
  import Benchee

  @moduledoc """
  Documentation for `Bench`.
  """

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package main

import (
	"fmt"
	"log"
	"os"
	"os/signal"
	"sync"
	"syscall"
	"time"