junftnt’s gists

junftnt / graceful.go

Created November 8, 2018 02:23 — forked from peterhellberg/graceful.go

*http.Server in Go 1.8 supports graceful shutdown. This is a small example.

	package main

	import (
	"context"
	"log"
	"net/http"
	"os"
	"os/signal"
	"time"
	)

junftnt / main.go

Created November 26, 2018 23:20 — forked from pteich/main.go

Example for using go's sync.errgroup together with signal detection signal.Notify to stop all running goroutines

	package main

	import (
	"fmt"
	"time"
	"golang.org/x/sync/errgroup"
	"context"
	"os"
	"syscall"
	"os/signal"

junftnt / translate.go

Created December 5, 2018 23:37 — forked from hvoecking/translate.go

Golang reflection: traversing arbitrary structures

	// Traverses an arbitrary struct and translates all stings it encounters
	//
	// I haven't seen an example for reflection traversing an arbitrary struct, so
	// I want to share this with you. If you encounter any bugs or want to see
	// another example please comment.
	//
	// The MIT License (MIT)
	//
	// Copyright (c) 2014 Heye Vöcking
	//

junftnt / reflection1_4.go

Created December 6, 2018 02:15 — forked from jonbodner/reflection1_4.go

	type Foo struct {
	A int `tag1:"First Tag" tag2:"Second Tag"`
	B string
	}

	func main() {
	sl := []int{1, 2, 3}
	greeting := "hello"
	greetingPtr := &greeting
	f := Foo{A: 10, B: "Salutations"}

junftnt / go

Created December 6, 2018 16:16 — forked from yaxinr/go

invoke(call) struct method in golang

	package myreflect

	import (
	"fmt"
	"reflect"
	)

	// Invoke - firstResult, err := invoke(AnyStructInterface, MethodName, Params...)
	func Invoke(any interface{}, name string, args ...interface{}) (reflect.Value, error) {
	method := reflect.ValueOf(any).MethodByName(name)

junftnt / custom_json.go

Created December 7, 2018 23:47 — forked from mdwhatcott/custom_json.go

Example of implementing MarshalJSON and UnmarshalJSON to serialize and deserialize custom types to JSON in Go. Playground: http://play.golang.org/p/7nk5ZEbVLw

	package main

	import (
	"bytes"
	"encoding/json"
	"fmt"
	"strconv"
	)

	func main() {

junftnt / rsa_util.go

Created July 8, 2019 20:38 — forked from miguelmota/rsa_util.go

Golang RSA encrypt and decrypt example

	package ciphers

	import (
	"crypto/rand"
	"crypto/rsa"
	"crypto/sha512"
	"crypto/x509"
	"encoding/pem"
	"log"
	)

junftnt / rpc-tls-client.go

Created July 30, 2019 18:14 — forked from artyom/rpc-tls-client.go

Go RPC over TLS.You have to create the following keys: certs/client.crt, certs/client.key, certs/server.crt, certs/server.key. client.crt and server.crt should be signed with ca.crt, which should be concatenated to both client.crt and server.crt. It's easier to do with easy-rsa: http://openvpn.net/index.php/open-source/documentation/howto.html#pki

	package main

	import (
	"crypto/tls"
	"crypto/x509"
	"log"
	"net/rpc"
	)

	func main() {

junftnt / rsasign.go

Created July 31, 2019 18:08 — forked from hansstimer/rsasign.go

Go: rsa signpkcs1v15 signing

	package main

	import (
	"bytes"
	"crypto"
	"crypto/rand"
	"crypto/rsa"
	"crypto/sha512"
	"fmt"
	)

junftnt / aes256-gcm.go

Created August 1, 2019 18:11 — forked from kkirsche/aes256-gcm.go

AES-256 GCM Encryption Example in Golang

	package example_test

	import (
	"crypto/aes"
	"crypto/cipher"
	"hex"
	"io"
	)

	// AES-GCM should be used because the operation is an authenticated encryption