amigos-spring-blogs

Blog application using Spring Boot & Java

TODO: please add redis with spring redis .... for learning purposes and observe the time efficiency for retrieving data.

Dependencies :

• Spring web
• Spring boot dev tools
• Data JPA
• Hibernate validator
• PostgreSQL Driver
• Spring Security & More...

Architecture followed

• MVC

Project Structure

• apis -> contains all the rest endpoints [equivalent to resources in grails]
• services -> contains business logic that are not really connected to the view
• models -> contains all the domain class [data class to map to database]
• repositories -> contains all the spring data repositories for data access
• configuration -> contains all relevant configuration files for the app.
• utils -> contains all the utilities classes & methods for additional logic
• dtos -> data transfer objects [ to transfer data / map entity to reponse , just like in grails]
• exceptions -> contains all the classes for handling exception for the application
• ....

Database

• users [will contain all users, individual users will have many blogs]
• blogs [contains all the blog posts, blog will contain the user_id]
• comments [one blog has many comments, comment has blog_id & user_id, one user can make multiple comments?]
• roles [role defined for each user, like ADMIN_ROLE, NORMAL_USER, and more if required.]
• categories [list of categories, one post can have categories...]

Spring security reference :

• REF 1: https://docs.spring.io/spring-security/reference/servlet/authentication/passwords/user-details.html
• REF 2 : https://docs.spring.io/spring-security/reference/servlet/authorization/method-security.html
• REF 3 : [Learn Code With Durgesh] https://www.youtube.com/watch?v=3m_mLFz-uQE&list=PL0zysOflRCen-GihOcm1hZfYAlwr63K_M&index=31
• REF 4: https://www.youtube.com/watch?v=X80nJ5T7YpE [Java Brains]

Spring boot image [file] uploading & serving [image] download url

• REF1 : https://stackoverflow.com/questions/45651119/spring-boot-images-uploading-and-serving
• REF2 : https://stackoverflow.com/a/52151216/9898251
• REF : https://www.devglan.com/spring-boot/spring-boot-file-upload-download

JWT authentication

• REF : https://www.youtube.com/watch?v=X80nJ5T7YpE
• Stateless authentication mechanism.

JUnit Testing

• If we include spring boot testing , it by default includes assertJ, Junit etc.
• REF : https://junit.org/junit5/docs/current/user-guide/ [JUnit 5]
• REF : AssertJ library [provides very good methods for assertion ] https://assertj.github.io/doc/
• To test with different database for eg : H2 in memory database, we can create resources folder inside the test and create a separate application.properties file there and testing will use that folder.