Author Archives

• Integrating Amazon Cognito With Single Page Application (Vue.js)

  By Mohamed Sanaulla on April 20, 2019 • ( 21 )

  

  Update:  I have reviewed this post based on the comments and I have fixed ambiguity in the same. Please refer to the sample code and remember to replace the values in the `.env.local` (https://github.com/sanaulla123/samples/blob/master/aws-cognito-spa-demo/.env.local) file with those which are available… Read More ›

• Integrate Spring Boot Application with Amazon Cognito

  By Mohamed Sanaulla on April 17, 2019 • ( 8 )

  In this article, we will show how to use Amazon Cognito service for authentication users in a Spring Boot application using the OAuth 2.0 client library introduced in Spring Security 5.0. What is AWS Cognito? Amazon Cognito is service offered… Read More ›

• How to Create QRCode Using QRGen in Java

  By Mohamed Sanaulla on April 15, 2019 • ( 0 )

  In one of my previous articles, we saw how to create QRCode and its SVG equivalent using Zxing Java library. The Zxing library is no longer actively maintained and for this, there is a wrapper around Zxing library called QRGen,… Read More ›

• JDK 12 – JEP 325 Switch Expressions

  By Mohamed Sanaulla on April 13, 2019 • ( 1 )

  JDK 12 went GA on March 19, 2019, keeping its word on shorter release cycles and frequent releases. The features part of the release can be found here. One of the interesting features for the developers is the “JEP 325… Read More ›

• How to create a QR Code SVG using Zxing and JFreeSVG in Java?

  By Mohamed Sanaulla on April 12, 2019 • ( 2 )

  In this article, we will look at how to use the Zxing QR code generation library and JFreeSVG library to create a QR Code SVG image in Java. QR Code Generation The below code creates a java.awt.image.BufferedImage object representing QR… Read More ›

• Working with LocalDate, LocalTime and LocalDateTime

  By Mohamed Sanaulla on September 27, 2018 • ( 0 )

  Java 8 had a major change for the date and time APIs, which was the inclusion of Joda Time APIs into JDK under the JSR 310: Date and Time API. This JSR was lead by Stephen Colebourne, the creator of… Read More ›

• Launch Single-File Source-Code Programs in JDK 11

  By Mohamed Sanaulla on July 5, 2018 • ( 0 )

  JEP 330 – Launch Single-File Source-Code Programs is one of the exciting features in the upcoming JDK 11(18.9) release. This feature allows executing your java source code directly using the java interpreter. The source code is compiled in memory and… Read More ›

• API Updates in Java SE 11 (18.9)

  By Mohamed Sanaulla on June 6, 2018 • ( 0 )

  Java SE 11, which is also named as 18.9 (based on the new naming scheme which uses the year and month of release), is slated to be GA during the last week of September. The new approach for releasing new… Read More ›

• Java 10 – JEP 286: Local-Variable Type Inference

  By Mohamed Sanaulla on March 4, 2018 • ( 1 )

  Java 10 is around the corner with RC Build available here. The features targetted for this release can be found here. Of all the JEPs targetted for Java 10, the interesting and most talked about by the developer community is… Read More ›

• Sample Logback Configuration for Spring Boot Profile Based Logging

  By Mohamed Sanaulla on January 23, 2018 • ( 1 )

  We would want different logging configurations for different profiles in Spring Boot, like in local running we would just want console logging and for production, we would want file logging with support for rolling the log files daily. I came… Read More ›