Posts

Showing posts from July, 2022

Building web app using Firebase - Part 2 (Create API and Read Write DB)

By -
Image
Our First Web App Using Firebase Continuing from the previous post, which is only just one time only setup, let's further advance on doing the codes. After the Realtime database is ready and you have created a document, we need to develop the code. Just create a typical Node-js project as described below: Write our first Firebase function After you created the document you followed from the previous post, you already have the read and write API to your document. For example, you will be able to read your "user_detail" document using HTTP GET Request to "https://[PROJECT_ID].firebaseio.com/user_detail.json" . More on using Rest API can be read here https://firebase.google.com/docs/reference/rest/database . Although Firebase RealtimeDB has its Rest API implementations, sometimes, When we need some underlying logic for our app, we need to create an API. But here's just an example of how to create a simple API using firebase functions. 1. On your project, initia
Read more

Building web app using Firebase - Part 1 (Create Firebase Project)

By -
Image
Google Firebase In the following example, We will develop the most efficient way to build a website. Unfortunately, people tend to over-engineer a website by using more and more tech stacks; yes, it will boost productivity later, but sure, the learning curve if you are not familiar with the stack; it just drains your energy and wastes your remaining precious time living on this planet Earth (which you only have once), which is very beautiful to explore rather than if you are just sitting there doing something about human-invented technology. The solution is Firebase; this gonna be a cheat sheet for whenever you want to start building a new project or if you are just a beginner using Google firebase. This will guide you through creating a website from scratch. No server setup required; no dev-ops skills needed, with NoSQL database to not be bothered by the SQL and its slowness and many problems with locking, foreign keys, maximum column size, and so on. Let’s just start building a w
Read more

Popular posts from this blog

ERROR 1348 Column Password Is Not Updatable When Updating MySQL Root Password

By -
Image
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
Read more

Spring Kafka - how to use ReplyingKafkaTemplate send and reply synchronously

By -
Image
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
Read more

MIME Types - Complete List

By -
Image
MIME Types List Icons Mime types is important in software development, sometimes it is used as system security to verify whether a file contents match with the extensions. Some attacker can just name any file to pass extensions checking, but inside of the file is actually a harmful contents, can be use to read our system, stealing our data even worse using our resource for their benefit. Here's complete list of mime types, pair with the extensions of file. 123 application/vnd.lotus-1-2-3 ez application/andrew-inset aw application/applixware atom application/atom+xml atomcat application/atomcat+xml atomsvc application/atomsvc+xml bdoc application/bdoc ccxml application/ccxml+xml cdmia application/cdmi-capability cdmic application/cdmi-container cdmid application/cdmi-domain cdmio application/cdmi-object cdmiq application/cdmi-queue cu application
Read more

How To Connect SSH Using PEM Certificate On Windows

By -
Image
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
Read more

How To Create Spring Boot Project Using Netbeans

By -
Image
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.
Read more