9lessons Programming Blog - Tutorials about Angular, ReactJS, PHP, MySQL and Web Development
Monday, April 26, 2021

Setup SSH authentication with PEM RSA file without password on ubuntu/linux server

Recently I have been working with Raspberry PI and creating my own home server to host some of my demo projects. This post is about setting up SSH authentication with a PEM certificate file without password on ubuntu/linux server. Implement the following steps and improve the security.

Setup SSH login with pem RSA file without password on ubuntu/linux server

Saturday, December 19, 2020

Upload Files from Ionic Angular to Firebase Storage.

Nowadays Google Firebase is my most favorite application. This is offering great web solutions like hosting, authentication, storage and database in a simple way. This article explains how to upload images(supports video) into Firebase storage with Ionic and Angular applications. This covers the user authentication part to protect storage uploads and improving default Firebase security rules. Take a look at the quick demo and try to upload under 1 mb JPEG or PNG.

Publish an Ionic Android App to Google Play Store

Wednesday, October 28, 2020

Publish an Ionic Android App to Google Play Store.

Ionic is a great component framework that can build both iOS and Android apps from the same source code using Capacitor. In this video I have explained how to generate a signed Android release APK version using Ionic application and publishing on Google play store. For this process you need a Google play console subscription that costs $25 for life time. Please try to download the 9lessons demo Android app for testing.

Publish an Ionic Android App to Google Play Store

Tuesday, October 13, 2020

Angular Multiple Language Support using Internationalization (i18n)

Modern web and mobile user experiences is a worldwide thing. Localization of your application (supporting multiple languages) will help you to reach worldwide people. Angular is offering Internationalization(i18n) plugins to enrich your application with multiple languages. In this post I will discuss the implementation with lazy loading design pattern with supporting dynamic content. Take a quick look at the live demo and choose the language.

Angular Translate

Wednesday, August 19, 2020

Github Free Angular React Application Hosting

Developing and hosting your own Angular, React applications has never been easier, but now there are many options like Google Firebase, Heroku and etc. Github Pages is offering some great features with free of cost no credit card required and no bandwidth limitations. Just create a public repository and commit all of your product ready files. It has a custom domain support with HTTPs enforcement.

Github Free Website Hosting

Tuesday, July 21, 2020

PUBNUB: Making Engaging Realtime Experiences a Reality in India

Realtime Communication is providing enterprises with an innovative way to deliver better, more cost-effective customer service.
Technology companies in India are racing towards a more connected and always-on world, making it easier, faster, safer, and more convenient for everyday people to do the things they need and achieve the things about which they dream. PubNub’s Realtime Communication Platform provides the backbone that any company can rely on to deliver engaging experiences that users love, including fast-growing companies like Swiggy, Apollo Health and others.

 PUBNUB: Making Engaging Realtime Experiences a Reality in India

Monday, June 22, 2020

Deploy NodeJS Express Application to Firebase as Function.

Few days back I posted an article about how to implement restful apis using the Node Express and MySql. In this post I am going to discuss deploying NodeJS RESTful apis with Express framework to the Firebase functions. This is helpful when you deal with external endpoints which need secret keys. Google Firebase functions as an alternate product for Amazon Lambda, and Google Firebase is offering Storage and Real-time databases.

Node Express Firebase Functions

Tuesday, May 19, 2020

Create Angular NPM Package and Publish

Are you interested to create and publish NPM packages/libraries to enrich Angular functionality? Take a quick look at this post. You can share solutions with other developers. A simple package can solve many problems and resolve the issue quickly. If you are working with multiple applications? Package approach will help you to solve the components problems easily. In this post I have created the Bootstrap confirm functionality package with control options and published it on NPM repository for global use.

Create Angular NPM Package

Sunday, April 19, 2020

Create a RESTful API using Node and Express with MySQL Database

Node Express web framework is a best solution to create RESTful APIs in quick time. Previously we published some concepts with different technologies like PHP and Java. This article will explain to you a more simple way to use external plugins to enrich your project APIs. Here you will find to create GET and POST requests with request payload validations to protect the endpoints.

Node Express MySQL RESTful

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