Home » Author Archives: Pascal Alma

Author Archives: Pascal Alma

Pascal is a senior JEE Developer and Architect at 4Synergy in The Netherlands. Pascal has been designing and building J2EE applications since 2001. He is particularly interested in Open Source toolstack (Mule, Spring Framework, JBoss) and technologies like Web Services, SOA and Cloud technologies. Specialties: JEE, SOA, Mule ESB, Maven, Cloud Technology, Amazon AWS.

Making Spring Boot application run serverless with AWS

spring-interview-questions-answers

In several previous posts I described how to setup your Spring Boot application and run it on AWS Elastic Beanstalk. Although this is a great step to go from a physical server to one in the cloud there is an even better step possible! Going serverless. That means no costs for any server and no maintenance or configuring of servers! ...

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Configure AWS Elastic Beanstalk application to use SSL

In this post I show you how to set up HTTPS for an application (REST API) running on AWS Elastic Beanstalk. This post is the last in a serie of three. As described in my previous two post I have performed the first two steps to obtain a SSL certificate for my subdomain and I am ready to use it ...

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Get a Certificate from AWS Certificate Manager

Recently AWS made the ‘Certificate Manager‘ service available in the Europe region. With this service you will be able to use SSL certificate (for free) with your applications hosted on AWS. The big advantage compared to the solution I described here is that this way I don’t have to put the certificate in my source code or have to copy ...

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Assigning a subdomain to a Beanstalk application with AWS Route 53

In a previous post I wrote about how to run a Spring Boot application on AWS by using Elastic Beanstalk. I also described earlier how to make your Spring Boot application making use of HTTPS instead of HTTP in combination with BoxFuse. I ended up in that solution to include the necessary SSL certificate in my application sources. Another way ...

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Validating JWT with Spring Boot and Spring Security

spring-interview-questions-answers

For my current project I will have a REST API set up with Spring Boot (most likely running with BoxFuse). To be able to use the API endpoint the application will check that the incoming request has a valid JWT token provided earlier (by an API service that I trust). To implement this functionality I want to make use of ...

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Seting up https for your REST API with Boxfuse

java-interview-questions-answers

In my last post I showed how easy it was to get your REST API based on Spring Boot framework up and running on AWS with the help of Boxfuse. The next step is making use of SSL for the communication with the API. By using SSL we make sure our data is save during the transport between our REST ...

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Example of using extensions in Swift

Recently I needed a image in my iOS app that was oscillating. I ran into an example of Swift code that showed how to do it and it was actually quite easy to do (for the theory behind the formula see this). The code makes use of the ‘extension’ feature in Swift. This is a really cool feature in Swift. ...

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