Jan 14

A few Steps Spring Boot CI/CD pipelines using Jenkins

Here are the few steps of a SpringBoot CI/CD pipeline using Jenkins can be : Install and configure Jenkins on a server. Create a new Jenkins job for your Spring Boot application. …

Jenkins

1 min read

Jenkins

1 min read

Jan 14

Amplify JavaScript library integrate into React application

AWS Amplify can be integrated into web and mobile applications using the Amplify JavaScript library, which provides a set of APIs for interacting with backend services such as authentication, storage, and APIs. Here’s an example of how to use the Amplify JavaScript library to integrate authentication into a React application: …

AWS

2 min read

Amplify JavaScript library integrate into React application

AWS

2 min read

Oct 16, 2022

A few Useful bash/shell scripts you should know

Few Basic examples of Bash Script. Executable Command: To Make the file executable, you need to run the below command: chmod +x filename.sh and then run sudo ./filename.sh A few Examples are below PRINT/ECHO Command VARIABLES DECLARATION USER INPUT COLLECT IF STATEMENT IF ELSE STATEMENT ELSE-IF STATEMENT SIMPLE FOR LOOP COMPARISON FILE EXISTS OR NOT CASE STATEMENT RENAME FILES USING LOOP WHILE LOOP

Shell Script

1 min read

Shell Script

1 min read

A few Useful bash/shell scripts you should know

Few Basic examples of Bash Script.

Executable Command: To Make the file executable, you need to run the below command:

chmod +x filename.sh

and then run

sudo ./filename.sh

A few Examples are below

GitHub Link: https://github.com/ruhulmus/basic-bash-shell-script-tutorial-example

Few Bash Script books :

The Linux Command Line by William Shotts

Advanced Bash Scripting Guide by Mendel Cooper

Bash Guide for Beginners (Machtelt Garrels)

Essential Bash (Krzysztof Kowalczyk) )

Oct 16, 2022

Lambda Functions Caching mechanism

The goal of the package is to provide a simple interface for caching, built specifically for AWS Lambda. lambda-cache helps you cache data in your Lambda function from one invocation to another. It utilizes the internal memory of the lambda function’s execution context to store data across multiple invocations, which: …

AWS

6 min read

AWS

6 min read

Sep 29, 2022

6 Useful AWS Websites that you must know for AWS Cloud

Here, I have shared 6 useful AWS(Amazon Web Services) official popular websites where you can know about AWS Services in detail. AWS Skill Builder Your learning center to build in-demand cloud skills. Over 500+ courses and learning plans, an Individual subscription offers access to self-paced labs, practice exams, role-based games…

AWS

2 min read

6 Useful AWS Websites that you must know for AWS Cloud

AWS

2 min read

Sep 27, 2022

Spring boot Security + JWT Demo Example

Here I have created a maven project and configured JSON WEB TOKEN(JWT) with Spring Boot. JWT Will Perform the below 2 operations: 1. Generate JWT Token — We Expose a POST API on /authenticate Endpoint. And Passing the correct username and password to generate a JSON Web Token(JWT). 2. Validate JWT Token — If a user tries to access GET API on /testuri Endpoint and passes The generated Token in the header…

Jwt Token

2 min read

Jwt Token

2 min read

Sep 25, 2022

Spring boot with Docker (Example + Repo)

Project Folder Structure : At first, We have created Maven based Spring boot application. The folder structure is below : Maven pom.xml : Project dependencies. Nothing special here, just some Spring Boot dependencies. <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent>…

Docker

5 min read

Docker

5 min read

Sep 24, 2022

Spring boot API Rate limit strategy using Bucket4j

Java

3 min read

Spring boot API Rate limiting is a strategy using Bucket4j

Java

3 min read

Sep 24, 2022

Object Oriented Design UML Diagram

Few Sample of UML Diagrams : Different types of UML diagrams (Sequence, State, etc.) Given a description of new functionality and an updated different type of UML diagram, you will implement the updated design if needed. Renters Renting Cars UML class diagram: UML Class Diagram (High Level) Design Structure UML Class Diagram: UML Class Diagram

Uml Diagrams

2 min read

Uml Diagrams

2 min read

Object Oriented Design UML Diagram

Few Sample of UML Diagrams :

Different types of UML diagrams (Sequence, State, etc.) Given a description of new functionality and an updated different type of UML diagram, you will implement the updated design if needed.

Renters Renting Cars UML class diagram:

UML Class Diagram (High Level)

Design Structure UML Class Diagram:

UML Class Diagram

Sep 24, 2022

Java Asynchronous logger with log4j 2

Java Asynchronous logger with log4j 2 We know Performance is critical for any application and nobody wants the underlying logging framework to become a bottleneck. We want lower logging latency and higher throughput. Also, we want to increase the logging performance. In that case, The asynchronous logger in log4J2 does this by decoupling the logging overhead…

Java

3 min read

Java

3 min read

A few Steps Spring Boot CI/CD pipelines using Jenkins

Amplify JavaScript library integrate into React application

A few Useful bash/shell scripts you should know

A few Useful bash/shell scripts you should know

Lambda Functions Caching mechanism

6 Useful AWS Websites that you must know for AWS Cloud

Spring boot Security + JWT Demo Example

Spring boot with Docker (Example + Repo)

Spring boot API Rate limit strategy using Bucket4j

Object Oriented Design UML Diagram

Object Oriented Design UML Diagram

Few Sample of UML Diagrams :

Renters Renting Cars UML class diagram:

Design Structure UML Class Diagram:

Java Asynchronous logger with log4j 2

A.T.M Ruhul Amin