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**Table of content**
-[Unit 0: course content](spring-course-notes.md)
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+- [Unit 1: course content](unit1_course_content.md)
+- Unit 2: Building a Spring Boot Web App
+
+
+
+### Log sessions
+
+Session 1 - 26/10/2022 - stoped reading [@here](https://sparkers.udemy.com/course/spring-framework-5-beginner-to-guru/learn/lecture/7577382#overview)
+
+Session 2 - 27/10/2022 - finished unit 1
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-# Spring 5 course : Udemy
-
-[toc]
-
-## Log sessions
-
-Session 1 - 26/10/2022 - stoped reading [@here](https://sparkers.udemy.com/course/spring-framework-5-beginner-to-guru/learn/lecture/7577382#overview)
-
-Session 2 - 27/10/2022 - ?
-
-
-
-## Unit 0: course content
-
-### Getting the most of the course
-
-- download the github repo and use git diff on branches (start of the course / end of the course)
-- fork the repositories to my own github account and start from the fork to follow the course and commit to my personal Github acc.
-
-- Spring Boot Cookbook at the end of the course
-
-
-
-### Setting up the dev env for Spring
-
-- Jdk 8 or higher (I will use 17)
-- Maven 3.25 of higher (I will use 3.8.6)
-- Gradle 3.41. or higher (I will use 7.5.1)
- - *use maven or gradle as you prefer*
-
-```
-#check java is installed
-java -version
-
-#check JDK is installed
-javac -version
-
-#verify maven is installed
-mvn -v
-
-#verify gradle is installed
-gradle -v
-```
-
-
-
-### What's new in Spring Famework 5?
-
-#### Core Framework Revision
-
-- what is reflextion in java?
-
-**Tips:** @Nullable and @NotNull annotations to explicitly mark nullable arguments and return values. This enables dealing null values at compile time rather than throwing NullPointerExceptions at runtime.
-
-
-
-Session 1 - 26/10/2022 - stoped reading [@here](https://sparkers.udemy.com/course/spring-framework-5-beginner-to-guru/learn/lecture/7577382#overview)
-
-
-
diff --git a/unit1_course_content.md b/unit1_course_content.md
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+# Spring 5 course : Udemy - Unit 1
+
+[toc]
+
+## Unit 1: course content
+
+### Getting the most of the course
+
+- download the github repo and use git diff on branches (start of the course / end of the course)
+- fork the repositories to my own github account and start from the fork to follow the course and commit to my personal Github acc.
+
+- Spring Boot Cookbook at the end of the course
+
+
+
+### Setting up the dev env for Spring
+
+- Jdk 8 or higher (I will use 17)
+- Maven 3.25 of higher (I will use 3.8.6)
+- Gradle 3.41. or higher (I will use 7.5.1)
+ - *use maven or gradle as you prefer*
+
+```
+#check java is installed
+java -version
+
+#check JDK is installed
+javac -version
+
+#verify maven is installed
+mvn -v
+
+#verify gradle is installed
+gradle -v
+```
+
+
+
+### What's new in Spring Famework 5?
+
+#### Core Framework Revision
+
+- what is reflextion in java?
+
+**Tips:** @Nullable and @NotNull annotations to explicitly mark nullable arguments and return values. This enables dealing null values at compile time rather than throwing NullPointerExceptions at runtime.
+
+
+
+Session 1 - 26/10/2022 - stoped reading [@here](https://sparkers.udemy.com/course/spring-framework-5-beginner-to-guru/learn/lecture/7577382#overview)
+
+
+
+#### Reactive Programming Model
+
+An exciting feature in this Spring release is the new reactive stack Web framework.
+
+Being fully reactive and non-blocking, this Spring Framework 5.0 is suitable for event-loop style processing that can scale with a small number of threads.
+
+[Reactive Streams](http://springframework.guru/reactive-streams-in-java/) is an API specification developed by engineers from Netflix, Pivotal, Typesafe, Red Hat, Oracle, Twitter, and Spray.io. This provides a common API for reactive programming implementations to implement. Much like JPA for Hibernate. Where JPA is the API, and Hibernate is the implementation.
+
+
+
+With Spring Webflux, you can now create WebClient, which is reactive and non-blocking as an alternative toRestTemplate.
+
+A WebClient implementation of a REST endpoint in Spring 5.0 is this.
+
+```java
+WebClient webClient = WebClient.create();
+Mono person = webClient.get()
+ .uri("http://localhost:8080/movie/42")
+ .accept(MediaType.APPLICATION_JSON)
+ .exchange()
+ .then(response -> response.bodyToMono(Movie.class));
+```
+
+While the new WebFlux module brings us some exciting new capabilities, traditional Spring MVC is still fully supported in Spring Framework 5.0.
+
+
+
+### Getting help with the Spring Framework
+
+- 1- there sis a Q&A section under the video in Udemy
+- 2- link to the course wiki https://github.com/springframeworkguru/spring5webapp/wiki
+
+**Tips**: from IntelliJ you can create a gist (right click + create a gist).
+
+- Be clear and give context
+- Provide the stacktrace
+- Provide a link to a ***gist*** or to your ***Github repo***
+
+
+
+Session 2 - 27/10/2022
+
+
diff --git a/unit2_building_spring_boot_webapp.md b/unit2_building_spring_boot_webapp.md
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+# Spring 5 course : Udemy - Unit 2
+
+[toc]
+
+## Unit 2: Building a Spring Boot Web App
+
+*Quick overview of Spring in a very productive way.*
+
+Generate html with dynamic content.
+
+Disclaimer: how to use this but not going fully in details in this chapter.
+
+- Spring Boot
+- Spring MVC
+- Spring Data JPA (Hibernate)
+- H2 database
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