--- title: "Moulaye Abderrahmane (@moolsbytheway) | Hashnode" description: "Writing about software. Read the latest articles by Moulaye Abderrahmane on Hashnode." url: "https://hashnode.com/@moolsbytheway" --- @moolsbytheway # Moulaye Abderrahmane @moolsbytheway 路 Mauritania 路 Joined March 2023 Writing about software ### [Creating a CRUD REST API with Spring Boot and PostgreSQL: A Step-by-Step Guide 馃獪](https://camelcodes.hashnode.dev/creating-a-crud-rest-api-with-spring-boot-and-postgresql-a-step-by-step-guide?utm_source=hashnode&utm_medium=feed) Hello Jhipsters (Java-hipsters) 馃憮 In this article we are returning to the basics. We'll be creating a Spring Boot application with a CRUD REST API for product management, using Java 17 and PostgreSQL. We will use Java's Optional to handle potential ... 1 min read 路 [camelcodes.hashnode.dev](https://camelcodes.hashnode.dev/creating-a-crud-rest-api-with-spring-boot-and-postgresql-a-step-by-step-guide?utm_source=hashnode&utm_medium=feed) [Jan 4, 2024](https://hashnode.com/posts/creating-a-crud-rest-api-with-spring-boot-and-postgresql-a-step-by-step-guide/65974375b950836e28b7f659) ### [Mastering Java Optionals: A simplistic guide to Null Handling in Java 馃珯](https://camelcodes.hashnode.dev/mastering-java-optionals-a-simplistic-guide-to-null-handling-in-java?utm_source=hashnode&utm_medium=feed) Hellowww Java developers! 馃巺馃徏 Let's talk about a handy feature called Java Optionals. Nulls can be a pain, right? Well, Optionals are like a cool tool to handle them. In this article, we'll explore what Optionals are, how they work in our code, and ... 1 min read 路 [camelcodes.hashnode.dev](https://camelcodes.hashnode.dev/mastering-java-optionals-a-simplistic-guide-to-null-handling-in-java?utm_source=hashnode&utm_medium=feed) [Jan 4, 2024](https://hashnode.com/posts/mastering-java-optionals-a-simplistic-guide-to-null-handling-in-java/659742b29c58cc63bb3c1481) ### [Spring Application Observability using Prometheus and Grafana 馃](https://camelcodes.hashnode.dev/monitoring-spring-application-metrics-with-prometheus-and-grafana?utm_source=hashnode&utm_medium=feed) In this tutorial we will generate prometheus metrics for a spring boot application and visualize them in a Grafana dashboard 4 min read 路 [camelcodes.hashnode.dev](https://camelcodes.hashnode.dev/monitoring-spring-application-metrics-with-prometheus-and-grafana?utm_source=hashnode&utm_medium=feed) [Nov 14, 2023](https://hashnode.com/posts/monitoring-spring-application-metrics-with-prometheus-and-grafana/6552c20caf6a0bb2c89738c8) ### [Simple Go Lang web service to send emails 馃Ц鉁夛笍](https://camelcodes.hashnode.dev/simple-go-rest-web-service-to-send-smtp-emails?utm_source=hashnode&utm_medium=feed) moved to https://www.camelcodes.net/simple-go-rest-web-service-to-send-smtp-emails/ 1 min read 路 [camelcodes.hashnode.dev](https://camelcodes.hashnode.dev/simple-go-rest-web-service-to-send-smtp-emails?utm_source=hashnode&utm_medium=feed) [May 27, 2023](https://hashnode.com/posts/simple-go-rest-web-service-to-send-smtp-emails/6474950f5e45e13e015891b5) ### [Angular SSR automatic cache refresh using Firestore 馃敟](https://camelcodes.hashnode.dev/angular-ssr-automatic-cache-refresh-using-firebase-firestore?utm_source=hashnode&utm_medium=feed) Howdy developers 馃憢 This is a follow-up post to finish what we have started in the last Angular SSR cache post. To summarize we have used Redis as a cache to serve Angular SSR routes faster. But we have a little gotcha here, when is this cache evicte... 5 min read 路 [camelcodes.hashnode.dev](https://camelcodes.hashnode.dev/angular-ssr-automatic-cache-refresh-using-firebase-firestore?utm_source=hashnode&utm_medium=feed) [Apr 4, 2023](https://hashnode.com/posts/angular-ssr-automatic-cache-refresh-using-firebase-firestore/642c1f5ffce6af553faaeabd)