바이낸스 자동 매매 트레이딩 봇
추적 매수/매도 기법(Trailing buy/sell strategy)을 이용한 자동화된 바이낸스 자동매매 프로그램 소스 코드: https://github.com/chrisleekr/binance-trading-bot 최신 업데이트 정보는 README.md에 서 확인 가능합니다. 이 페이지는 한국어로 프로그램에 대한 설명만 적혀있습니다....
React.js – TypeError: Cannot read property ‘setState’ of undefined
Problem code import React from "react" class SearchInput extends React.Component { state = { q: "" } onInputChange(e) { this.setState({ q: e.target.value }) } render()...
실시간 환율 받아오기 (Get real-time currency information)
Code snippet to retrieve real-time currency from exchangeratesapi.io <?php echo get_currency("AUD", "KRW"); /* * Retrieve real-time currency from exchangeratesapi.io * * @param string $from_currency e.g.)...
Binance Auto Trading Bot – Buy low/Sell high with stop loss limit/Trade multiple coins
Automated Binance trading bot with trailing buy/sell strategy Github: https://github.com/chrisleekr/binance-trading-bot Warnings I cannot guarantee whether you can make money or not. So use it at...
Image Optimisation Service
Github: https://github.com/chrisleekr/image-optimisation This is a practice project. The project contains Node.js API that optimise images - jpg, png, svg, and gif. Node.js, Express, Webpack, Imagemin...
애자일 스프린트 회고 도구(Agile Sprint Retrospective Tool)
스프린트(Sprint)를 운영하면 2주에 한번 아니면 한달에 한번씩 정기적인 "회고(Retrospective)"를 해야한다. 모든 팀원이 솔직하게 익명으로 자신의 의견을 개진해야하고, 그 의견들을 다같이 토론하여 프로젝트 운영에 반영해야 팀의...
Node.js + MongoDB RESTful API Boilerplate
Github: https://github.com/chrisleekr/nodejs-mongodb-api-boilerplate This is a sample project that I followed the tutorial Build Node.js RESTful APIs in 10 Minutes written by Olatunde Garuba. How to start $...
Node.js (REST API) + Vue.js/Nuxt.js (Frontend/Backend) + MySQL Boilerplate
Github: https://github.com/chrisleekr/nodejs-vuejs-mysql-boilerplate This is a boilerplate project. The project contains Node.js REST API and frontend/backend developed by Vue.js with BootstrapVue. APINode.js, Express, Webpack, Express Validator,...
Certbot으로 무료 SSL/TLS 인증서 발급/재발급 하기
참고자료: https://www.bennadel.com/blog/3420-obtaining-a-wildcard-ssl-certificate-from-letsencrypt-using-the-dns-challenge.htm SSL 새로 발급 받기 #!/bin/bash docker run -it --rm --name letsencrypt \ -v "/etc/letsencrypt:/etc/letsencrypt" \ -v "/var/lib/letsencrypt:/var/lib/letsencrypt" \ certbot/certbot:latest \ certonly \ -d...
[PHP+MySQL] 간단한 카카오 i 오픈빌더 챗봇 만들기 (Kakao i Open Builder)
카카오 i 오픈빌더 (Kakao i Open Builder)를 이용한 플러스 친구 챗봇 (PHP + MySQL) 백엔드 프로젝트 이 프로젝트는 샘플 테스트용으로 카카오톡 플러스 친구 챗봇을 구현하기...
Workerbox (Service Worker)로 사이트 로딩 속도 향상 시키기
Service Worker: 웹페이지와 별개로 브라우저가 백그라운드에서 실행시키는 자바스크립트 코드. 푸쉬, 동기화, 오프라인 모드 지원 https://developers.google.com/web/fundamentals/primers/service-workers/ Workerbox: 구글에서 제공하는 자바스크립트 라이브러리로써 웹앱의 오프라인 지원을 쉽게 할...
Get all validation errors for Angular form
Reference 1: https://gist.github.com/JohannesHoppe/e8d07d63fc345a5fdfdf4fc4989ef2e4 import { FormGroup, ValidationErrors } from '@angular/forms'; export function getFormValidationErrors(form: FormGroup) { const result = []; Object.keys(form.controls).forEach(key => { const controlErrors: ValidationErrors =...
Yii2 errors – Failed to clone the git and “extra.asset-installer-paths” option is deprecated`
Error 1. The "extra.asset-installer-paths" option is deprecated, use the "config.fxp-asset.installer-paths" option Update composer.json by removing asset-installer-paths and add fxp-assets { ... "extra": { "yii\\composer\\Installer::postCreateProject": { "setPermission":...
Javascript project devtools
Javascript project development tools Babel: https://babeljs.io/docs/en/ Javascript compiler - Transform syntax, Polyfill features and so on $ babel -o dist/package.js dist/package.js Standard: https://standardjs.com/ Javascript style guide, linter...
Local workspace file (‘angular.json’) could not be found.
After upgrading Angular application using ncu -a, got an error message Local workspace file ('angular.json') could not be found.</code. $ ncu -a $ npm run...
Setup Gitlab & Jenkins on Raspberry Pi 2
Objective: Installing and configuring Gitlab and Jenkins on Raspberry Pi 2 Background: I currently have extra Raspberry Pi and would like to use for...
Time Clock Management System developed with Yii2 REST API + Angular 2 + Docker
Time Clock Management System (Yii2 REST API + Angular 2 + Docker) Source Repo: https://github.com/chrisleekr/time-clock-management-system-yii2-rest-api-angular2-docker This is a personal project for learning Angular 2....
Missing Authroization header in request
When developing REST API in Yii2, I found some development environments do not populate Authorization header in the request; as a result, I was not...
Get AWS EC2 tags to environment parameters for apache2
Objective: AWS instances are assigned tags per instance. Need tags to be environment parameters for Apache2; thus, web application can retrieve environment parameter. Step...
PHP imap_open() error – INBOX: invalid remote specification (errflg=2)
INBOX: invalid remote specification (errflg=2) Got following error when use imap_open() in PHP? Notice: Unknown: Can't open mailbox {imap.gmail.com:993/imap/ssl/novalidate-cert}INBOX: invalid remote specification (errflg=2)...
PTV Timetable API sample code for PHP
API Page: https://www.ptv.vic.gov.au/about-ptv/ptv-data-and-reports/digital-products/ptv-timetable-api/ptv-timetable-api-reference/ 1. Request API key by sending email How to register for a key and developer ID > Send an email to APIKeyRequest@ptv.vic.gov.au...
Vagrant Scalable Web Application Architecture
Deploying scalable web application using Vagrant, Consul, Consul Template, nginx and HAProxy Source Repo: https://github.com/chrisleekr/vagrant-scalable-web-application-architecture This is proof-of-concept project to spin up scalable web application architecture...
Vagrant MySQL Master-Slave Replication
Vagrant MySQL Master-Slave Replication Source Repo: https://github.com/chrisleekr/vagrant-mysql-master-slave-replication Vagrantfile to spin up MySQL Master-Slave replication with persistent data storage Note: This project is created for just practice....
WebSocket Sample
The sample process Send event to Web Socket for getting order id Web Socket connects MySQL orders table and get next order id Send event...
Configure Aptana to support PHP 5.4
I am using Aptana Studio 3 in Mac. When I try to set PHP 5.4 environment in project settings, it does not save the changes. And...