yusufsyaifudin / main.go

Created May 22, 2025 07:03

golang worker

	package main

	import (
	"context"
	"fmt"
	"log/slog"
	"os"
	"os/signal"
	"sync"
	"sync/atomic"

yusufsyaifudin / parse_json.go

Created September 15, 2021 08:23 — forked from mjohnsullivan/parse_json.go

Parse JSON objects with arbitrary key names in Go using interfaces and type assertions

	// Parsing arbitrary JSON using interfaces in Go
	// Demonstrates how to parse JSON with abritrary key names
	// See https://blog.golang.org/json-and-go for more info on generic JSON parsing

	package main

	import (
	"encoding/json"
	"fmt"
	)

yusufsyaifudin / useful_scripts.md

Last active July 23, 2021 02:29

Useful scripts

Useful script

Tunnel Private Network to Local using SSH Tunneling

ssh -L localhost:port:remote_ip:remote_port username@<IP that have access to remote_ip>

Ensure that you can SSH ssh username@<IP that have access to remote_ip> (public key already added in the instance)
Ensure that your SSH instance can access remote target, it can be db, http or etc

yusufsyaifudin / main_test.go

Created March 23, 2021 11:22

Implement As method to convert interface type to the right data structure as it is first write. That means, if it use struct A, it only valid to output target as A. If we re-declare struct A, it will not match since it is not the real A in the first declaration.

	package main_test

	import (
	"fmt"
	"reflect"
	"testing"
	)

	type AnimalName string

yusufsyaifudin / README.md

Created February 18, 2021 07:05

Time Based OTP based on https://tools.ietf.org/html/rfc6238 and https://tools.ietf.org/html/rfc4226

This is my learning towards how to generate Time Based OTP using SHA-512 algorithm.

yusufsyaifudin / jaeger-component-kafka.yaml

Created November 19, 2020 09:33

Proof Of Concept: Deploying Scalable Jaeger Components

	# MY_IP=$(ifconfig \| sed -En 's/127.0.0.1//;s/.inet (addr:)?(([0-9]\.){3}[0-9])./\2/p') docker-compose up
	# reference:
	# https://github.com/jaegertracing/jaeger/blob/v1.21.0/docker-compose/jaeger-docker-compose.yml
	# https://gist.github.com/bocharovf/e19fa80f7b5f6b65db17249c91e79416
	version: "3.5"
	services:
	agent1:
	image: jaegertracing/jaeger-agent:1.21
	command: [
	# see https://www.jaegertracing.io/docs/1.21/deployment/#discovery-system-integration

yusufsyaifudin / raft_handler_store.go

Created May 29, 2020 08:32

Echo handle store in Raft: https://github.com/yusufsyaifudin/raft-sample/blob/48254d0c71/server/store_handler/handler_store.go#L22-L74

	package store_handler

	import (
	"encoding/json"
	"fmt"
	"github.com/hashicorp/raft"
	"github.com/labstack/echo/v4"
	"net/http"
	"strings"
	"time"

yusufsyaifudin / fsm.go

Created May 29, 2020 07:51

raft.FSM using BadgerDB: https://github.com/yusufsyaifudin/raft-sample/blob/48254d0c71/fsm/badger.go

	package fsm

	import (
	"encoding/json"
	"fmt"
	"github.com/dgraph-io/badger/v2"
	"github.com/hashicorp/raft"
	"io"
	"os"
	"strings"

yusufsyaifudin / postgres.yml

Last active May 6, 2020 08:18

docker compose for postgresql 12

	# run with: docker-compose -f postgres.yml up
	# psql "postgres://postgres:postgres@localhost:5433"
	version: '3.1'

	services:

	db:
	image: postgres:12-alpine
	restart: always
	environment:

yusufsyaifudin / ca_and_cert_golang_demo.go

Created February 25, 2020 08:54 — forked from shaneutt/LICENSE

Golang: Demonstrate creating a CA Certificate, and Creating and Signing Certs with the CA

	package main

	import (
	"bytes"
	"crypto/rand"
	"crypto/rsa"
	"crypto/tls"
	"crypto/x509"
	"crypto/x509/pkix"
	"encoding/pem"

Yusuf Syaifudin yusufsyaifudin

Useful script

Tunnel Private Network to Local using SSH Tunneling