Spring Boot Master

Let us learn how to generate & configure the ssl certificates in spring boot applications. Step 1. Getting the certificate  We can purchase the SSL certificate from the following SSL providers   Godaddy DigiCert GeoTrust GlobalSign Comodo SSL RapidSSL SSL.com OR, for testing purposes, we can generate a self-signed certificate Before getting started, let us know the format of the SSL certificates: PKCS12:  Public Key Cryptographic Standards is a password-protected format that can contain multiple certificates and keys; it's an industry-wide used format. JKS:  Java KeyStore  is similar to PKCS12; it's a proprietary format and is limited to the Java environment. To know more about how SSL works please go to this link . We can use either keytool or OpenSSL tools to generate the certificates from the command line. Keytool  is shipped with Java Runtime Environment, and OpenSSL can be downloaded from  here . For our demonstration, let's use keytool. keyt

Amazon RDS for MySQL allows authentication using AWS Identity and Access Management (IAM) database authentication. With this authentication method, you don't need to use a password when you connect to a DB instance. Instead, you use an authentication token. Let us understand how this works? An authentication token is a unique string of characters that Amazon RDS generates on request. Authentication tokens are generated using AWS Signature Version 4. Each token has a lifetime of 15 minutes. You don't need to store user credentials in the database, because authentication is managed externally using IAM. You can also still use standard database authentication. Since IAM authentication tokens are short-lived access tokens that are valid for 15 minutes. For the RDS database this token works as a database password that is required to establish a connection and does not determine how long the existing connection can last. The default value for connection to be alive without activit

As stated in the title, we are going to demonstrate that how we can upload and retrieve files from the amazon s3 bucket in spring boot. For this, we must have an account on amazon web services (AWS) . And the next thing you need to have is an IAM user that has programmatic access to the s3 bucket. Follow the steps below to create an IAM user and s3 bucket. Table of Contents 1. Steps to create an IAM user in AWS with S3 bucket full access permission Step 1.1 Login to your AWS account   Step 1.2 Set the user details Step 1.3 Set user permissions Step 1.4 Create a user group and set the access policy Step 1.5 Add user to the group Step 1.6  Set the tags (optional) Step 1.7  Review the user details and permission summary Step 1.8 Download the user credentials 2. See, how to create s3 bucket. Step 2.1 Click on the "Create bucket" button. Step 2.2 Enter the bucket name and select bucket region. Step 2.3 Set file accessibility for bucket items as public/private

Every spring boot application is made to manage a large set of data. Also, we need to perform a search and filter the data according to need, And also we cannot load all data in one go on a single page so we need pagination too. In this article, we are going to demonstrate custom pagination with search and filter performed through ajax call. Goal: This demonstration is performed on a set of students' data. We have written a method to generate sample data.   Table of Contents 1. Initialize the project with the following dependencies 2. Set the application properties 3. Create the Student entity 4. Enum to denote the class of student 5. Create JPA repository of entity 6. Create the search & filter command object (CO) 7. Create a data transfer object (DTO) of the Entity for returning the response 8. Create a service for implementing the business login 9. Create a controller 10. Create a utility class for date conversions 11. Create the HTML Data Table design 12.

Security Example in Spring Boot Implementation of Spring Security in the Spring Boot application is the key point to learn for spring boot developers. Because Authentication and Authorization are the backbones of the whole application. Getting started with the Spring Security Series, this is the first part, in this article we are going to focus on the authentication part with minimal registration. The implementation of registration flow with email verification, customizing password encoding, and setting up password strengths and rules will be explored in another separate article for each.  This article will be the base of the spring security series, the other security features will be explained on the basis of this implementation, so be focused and let's understand. The code contains proper naming & brief comments that makes it very comprehensive. If you feel any difficulty or find any issue, please drop a comment below this post The main goal of this article is to impleme