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Category: Frameworks

Posted on 08/05/202208/05/2022React Native

React Native Boilerplate

A React Native boilerplate using React Native, React Navigation, React Redux Toolkit, React Native Bootsplash, React Native Onboarding Swiper, Redux Persist, Formik, Yup, Lottie, Axios…

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Posted on 04/11/202104/11/2021React Native

BUG! exception in phase ‘semantic analysis’ in source unit ‘_BuildScript_’ Unsupported class file major version 61

Issue: In Arch Linux, when try to execute npm run android, it throws the following error. Solution: Do not use Java 17 Open JDK as…

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Posted on 04/11/202104/11/2021Linux

Change Java OpenJDK version in Arch Linux

Issue: When execute npm run android for React Native, the build error occurred as below: Solution: It’s because currently Java version is lower than 11.…

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Posted on 21/03/202129/07/2021Finance

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.…

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Posted on 26/01/202126/01/2021React.js

React.js – TypeError: Cannot read property ‘setState’ of undefined

Problem code Error Solution https://stackoverflow.com/questions/32317154/react-uncaught-typeerror-cannot-read-property-setstate-of-undefined https://reactjs.org/docs/handling-events.html With ES5 With ES6

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Posted on 21/11/202028/11/2020Frameworks

실시간 환율 받아오기 (Get real-time currency information)

Code snippet to retrieve real-time currency from exchangeratesapi.io

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Posted on 07/11/202029/07/2021Finance

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…

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Posted on 16/05/202029/08/2020Node.js

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…

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Posted on 10/04/202029/08/2020Frameworks

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…

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Posted on 13/03/202029/08/2020MongoDB

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 $…

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Posted on 10/10/201929/08/2020Node.js

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. API Node.js, Express, Webpack, Express…

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Posted on 18/05/201918/05/2019Frameworks

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 SSL 재발급하기

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Posted on 29/03/201929/08/2020Frameworks

[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…

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Posted on 02/03/201903/03/2019Javascript

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…

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Posted on 24/11/201802/03/2019Angular (ngx)

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 =…

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Posted on 11/11/201811/11/2018Frameworks

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”:…

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Posted on 14/10/201814/10/2018Frameworks

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…

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Posted on 03/09/201803/09/2018Angular (ngx)

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…

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Posted on 07/08/201708/08/2017Frameworks

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…

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Posted on 22/01/201722/01/2017Angular (ngx)

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.…

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Posted on 06/01/201722/01/2017Frameworks

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…

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Posted on 17/12/201622/01/2017Frameworks

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…

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Posted on 31/10/2016Frameworks

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)…

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Posted on 11/10/201611/10/2016Frameworks

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…

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Posted on 10/09/201610/09/2016Frameworks

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…

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