Alexys Lozada alexyslozada

🏠

Working from home

CTO at @edteamlat, Gopher, speaker, consultor, #gopher. 💻🚀

alexyslozada / bulk_examples.go

Created October 23, 2022 23:06

Example benchmark for bulk insert with pgx

alexyslozada / lru_cache.go

Last active August 5, 2022 03:46

LRU cache using Go

	package main

	import (
	"fmt"
	)

	// Node is the basic structure to store the key and value. Also store the prev and next node.
	type Node struct {
	key string
	value string

alexyslozada / download-from-browser.js

Created June 21, 2022 22:24

How to export / download data as text / csv file

	// This data is a mock from your real data
	const data = [{"name": "apple"}, {"name": "onion"}, {"name": "banana"}]

	// We want to write this data into a string
	const dataToString = data => {
	let resp = ""
	data.forEach(e => resp += e.name + "\n")
	return resp
	}

alexyslozada / prepare-fields.sh

Created November 4, 2021 04:16

How to prepare some files with some parameters

	#!/bin/bash

	# Get the provider name
	name=""
	read -p "Write the provider name: " name

	# Ask to dev if want to remove comments with <<>>
	removeComments="N"
	read -p "Do you want to remove the helpers comments? [y/N]: " removeComments

alexyslozada / sse_handler.go

Created September 21, 2021 14:17

How to create a handler to SSE

	func (h *Handler) Subscribe(c echo.Context) error {
	var epoch = time.Unix(0, 0).Format(time.RFC1123)

	c.Response().Header().Set(echo.HeaderContentType, "text/event-stream")
	c.Response().Header().Set("Cache-Control", "no-cache")
	c.Response().Header().Set("Connection", "keep-alive")
	c.Response().Header().Set("Expires", epoch)
	c.Response().Header().Set("Cache-Control", "no-cache, private, max-age=0")
	c.Response().Header().Set("Pragma", "no-cache")
	c.Response().Header().Set("X-Accel-Expires", "0")

alexyslozada / filter.go

Last active August 18, 2021 14:38

How to process a raw json

alexyslozada / social_security_date_sql.go

Last active March 13, 2021 16:20

Calcula el último día hábil de acuerdo a los dos últimos digitos de un nit

	// Este archivo me permite generar el SQL que se inserta en la tabla de social_security_date
	// OJO: debe revisarse los festivos del año.
	package social_security_date

	import (
	"fmt"
	"log"
	"sort"
	"time"
	)

alexyslozada / Go - Genera los días festivos de Colombia

Last active December 16, 2019 23:00

Genera los días festivos de colombia dado un año

	// Genera los días festivos de colombia dado un año
	// Basado en los artículos:
	// https://www.festivos.com.co/calculo y https://elpais.com/elpais/2017/04/12/el_aleph/1492008750_544261.html
	package main

	import (
	"fmt"
	"time"
	)

alexyslozada / flag-slice.go

Created October 29, 2018 00:35

Cómo leer un slice de datos de un flag

	// Field structura de un tipo de campo del modelo
	type Field struct {
	Name string
	Type string
	NotNull string
	}

	// Helper estructura que permite procesar los campos digitados
	type Helper struct {
	Fields []Field

alexyslozada / recursive-cte.sql

Last active October 5, 2018 14:32

Consultar recursivamente una tabla con la estructura de árbol