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Showing posts from July, 2020

Develop Web Based Application Faster Using PHP

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Wordpress logo I’ve been developing apps using many different frameworks, across different languages, so I can tell you which one is best for building web based applications the quickest, simplest and easiest. For me PHP is the easiest way to build web based applications, you don’t need to compile the codes, you don’t have to use classes with long namespaces, etc.  And PHP is widely known, it’s actually very popular, so if you have some troubles while writing your codes, you can just do some quick search and find the answers right away.  Web based app using Wordpress If you just want to build a Web blog, company profile, no need complex business process, just using Wordpress is enough. Wordpress is not just a blogging platform, it can be much more complex than that. The way you do customization is by developing a custom plugin. Many developers in the Wordpress community already build themes, templates and set of complex features, for example for Ecommerce purpose, Inventory management,
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How To Create An Import Excel/Spreadsheet Data Using PHP, Laravel and Phpspreadsheet

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If you build a data management app using PHP and Laravel Framework, maybe you need to have a feature to import data from spreadsheet files. Follow these steps below. We are gonna create a user interface form to upload the spreadsheet file and then process the data and insert them into our database. 1. Database table schema for our data In this example we are gonna use an example with Users data, it can be Customers, employees or anything. Here’s an example of the table schema that we are gonna use in our database. 2. Spreadsheets template We must define a valid spreadsheet template, an Excel file with XLSX extensions, and a set of headers to guide our user to fill the cell in the correct order. Here’s an example. 3. Install the library We are using a library called phpoffice/phpspreadsheet, it’s available on composer, so simply using composer command to include the library into our project. composer require phpoffice/phpspreadsheet 4. Set routes to map a controller for our UI and data
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Heroku Free Cloud Platform, Start Develop Your Personal Project For Free

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Photo by ThisisEngineering RAEng on Unsplash I’ve been switching my projects lately from a Bare Metal VPS Server to Cloud or Platform as a service kind of type, as it is much more simpler, all i needed now is to focus more on the codes and the business logic, not on the infrastructure. As you may already know if you follow Tech news, people nowadays talk a lot about Clouds. And that’s why there's so many companies trying to compete as a cloud provider.  So now, we have many options to choose to deploy our project for the public user much faster because of the Clouds.  I see big companies like Google, Amazon, Alibaba and so many I can't mention offering Cloud. Some of them offer unlimited trials, but with limitations in storage and bandwidth. For hoby or individual projects, it’s okay to use free trials since we didn’t have any customers yet, we wouldn’t need so much resources in our cloud. Heroku Cloud Heroku is one of my favorite cloud providers. I've tried Google Cloud, b
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The Internet Distractions We Face Day To Day

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Photo by Charles Deluvio on Unsplash Because I often get distracted by many things when I am in front of the internet, I've been thinking why this happens to me? Or if it also happens to you, then why does it happen to us? So why were we distracted? It is because as our brains evolved and became large and complex, and the easiness of information we can get from the internet, we are thinking about many things simultaneously, we want to improve this, improve that, basically everything, and it’s not wrong, that’s how we human species survive until this moment.  Our survival mechanism requires us to improve ourselves day by day, so we must learn new things in order to survive, we must be the smartest and the strongest in order to survive and to pass our genetics to our offspring. Also as we grow into adults, day to day, we face different people each time, and we face many problems too, and if we want to solve that problem, we need to learn how to solve it. What is most effective to min
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Spring Kafka - how to use ReplyingKafkaTemplate send and reply synchronously

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Microservice Spring with Apache Kafka Kafka is an asynchronous messaging queuing system, but when you have a case in your project that you need to have the result immediately from another service you can do that quite easily. Kafka from the client side produces a message to the server side, then waiting for the server to return back the message exactly what the client wants. It’s identified in the kafka header request named KafkaHeaders.CORRELATION_ID and a topic where the server should send. If the server side produces the same correlation id to the same topic in the request, then the client side will catch that message as its reply. Although you can work with kafka from a different framework and language other than Java and Spring. Here’s in this example i just specifically giving the example of sending and replying kafka messages using Spring Boot. The Project Overview The client-project will send a string message to the server-project over kafka, then the server-project wil
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How To Connect SSH Using PEM Certificate On Windows

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Usually you will need a pair of SSH username and password to connect to a remote server. But there's also another way to connect to the server via SSH but without password, just using a dot pem (example.pem) file. Here's how we usually do on Windows 1. Let’s SSH login using pem to confirm if it’s throwing error or the pem is fine, if error then we need to move to step 2 to fix it: ssh adam@10.0.0.123  -i server-cert.pem And here's the usual error that will throw if your pem file is not ready for SSH login. You need to follow the next step to make your pem certificate ready to login to your server via SSH. 2. Open Windows Explorer, then right-click on the pem file, then select "Properties". Navigate to the "Security" tab, and click "Advanced" 3. Disable inheritance 4. Delete all permissions, so it doesn’t have any permission 5. Now add you as the only only owner. By click button Add and then Select a principal, then Advanced. 6. On the showing p
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ERROR 1348 Column Password Is Not Updatable When Updating MySQL Root Password

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MySQL and MariaDB password As already mentioned in the title of this blog, this error message sometimes occurred when we are trying to update our root password database, either MySQL or MariaDB, The error says: ERROR 1348 (HY000): Column 'Password' is not updatable This is because if we use this SQL command to update our database root password, and it turn out to be Restricted by MySQL to use update on mysql database. UPDATE mysql.user SET Password=PASSWORD('1234') WHERE User='root'; The solutions for MySQL Error1348 So you can not update a user password using Update commands, to update the password, use ALTER commands instead. like the following. ALTER USER 'root'@'localhost' IDENTIFIED BY '1234'; And then you need to do the flush privileges to commit previous queries (that alter command above) into the system, simply do like this. flush privileges; So now you have your root with password 1234. Although it is recommended to
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How To Create Spring Boot Project Using Netbeans

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Spring Boot is program that you can use to develops Spring Framework easier, without the need of using so many hard to handle configuration. This tutorial, we are gonna create Spring Boot Application by using Netbeans IDE. You can of course create Spring Boot Appilcation on Netbeans, but it will be easier if just using plugin for Spring development in Netbeans, 1. Open Netbeans, click tools menu and click plugin. After plugin window opened, click tab Available Plugins and find the "Nb SpringBoot" plugin then install and activate the plugin. 2. After restarting the Netbeans IDE. Now you gonna be able to create a new project with Spring boot application. File > New Project > Under categories, choose Maven > then choose  Spring Boot Basic. Now you can start the development of spring boot application using your Netbeans IDE. Open pom.xml to add spring boot dependencies you want.
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Flutter Button With Left Align Text and Icon

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flutter button left text Developing a flutter UI is very difficult for a beginner or I think any other technology it’s very intimidating for a starter. I remember my first time trying to make a button in Flutter that had left aligned text in it. I spent a lot of time on how to make it but never made it. Once you are getting familiar with flutter widget or component blocks, you can apply whatever style you want for your app. In html you can just do something like <button style=”text-align:left”>Text</button> but in flutter it is a bit tricky. So here I provide an example on how you can align text inside a flutter button to the left. Flutter button with left align text import 'package:flutter/material.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( primarySwatch: Colors.blue, visualDe
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