Spring Boot MicroServices Course: Catalog Service Walking Skeleton Setup

[@pavithravasudevan5089]

This video has wealth of information. I feel this series is going to be very useful for both senior and junior developers and will be a great guide for best practices to be followed when developing application. Planning to use the tools you shared in my future projects. Thank you!

[@akumarsingh85]

This is a superbly informative tutorial. Cheers to all your efforts.

[@Poisonedyouth79]

Fantastic video ❤ You explained everything in such a way that I can follow it step by step.

[@kumartanay3566]

Great series, Love it, I'll definitely follow your this series

[@OneClickLabs]

Great video. Learnt some new things. Looking forward to the next one.

[@prasanthsanjeevi2563]

Much awaited series sir.

[@suryadev99]

Superb video Siva! Learnt many new things! Thank you

[@Anonymous-x6b]

springboot-micros-service is that the directory you created manually. If you create a project using maven then src folder will also be there.

[@felipedossantos7246]

Great content, Siva! Thank you so much

[@VK55837]

Expanding on Siva's points at 32:09, using Test Container's main method necessitates stopping and starting Docker containers for every (application) code change requiring a restart. This is inefficient (time consuming, I mean) and can be optimized by pre-defining necessary containers in a Docker Compose file so that they are decoupled, allowing us to restart either containers/app or both whenever needed.

[@TheDummyHead]

Cool video! I was wondering how would you approach the versioning of services? Is there an automated way to increment the version in pom.xml? Something similar to semantic-release in node.js.

[@sivalabs]

AFAIK, there is no automated way to handle API version upgrade. The usual approaches are using version number in the url, or as a header or using custom Accept header. Mostly I used the approach of using version number in the url. We can configure the common prefeix such as/api/v1 in the application.properties file.

[@TheDummyHead]

@@sivalabs Sorry, I didn't explain correctly. I mean 0.0.1-SNAPSHOT type of version of the app itself.

[@sivalabs]

You can follow the approach described in this article to increment the version www.codecentric.de/wissens-hub/blog/increment-versions-maven-build-helper-versions-plugin

[@TheDummyHead]

Another question similar to incrementing the version. How would you approach generating a changelog for each service? In a project we use semantic-release, but it requires node.js as an extra dependency in our gitlab pipeline.

[@sivalabs]

I haven't done this myself but I see people using some GitHub Actions feature to generate the changelog upon releasing a new version. I don't know how to do it in gitlab. I guess something similar might exist for GitLab as well because this is a common requirement for libraries release process.

[@bwest-dev6241]

Out of curiosity do you have an articles or planned tutorials on developing to hexagonal architecture. or attempting to do this using that architecture

[@sivalabs]

I have plans to make video on Hex Arch. Stay tuned.

[@adityakulkarni4836]

I performed the steps mentioned till loading the catalog-service. While explaining testContainer, you executed the 'docker ps' command before executing the testcontainer class. The output shows there is already a running portanier. However, I don't see any output when I execute the docker ps command. How can we load the portainer container running on docker? Could you please explain how you created the portainer and connected it to the project?

[@sivalabs]

Portainer is a utility that I am using to manage Docker container via GUI, it is not required for this project. But if you are interested to explore Portainer, I have made a video on how to use Portainer kzbin.info/www/bejne/o6nNZn-DpapqjbM

[@hy32906]

@@sivalabs Can we use docker desktop instead of Portainer.

[@jorgetovar621]

This is pure gold

[@bwest-dev6241]

thanks for the great content

[@hy32906]

Hi Siva, I run docker compose command in local and i could see catalog-db running in my docker desktop. I was able to run the application in local. But when i check in the code in remote branch and github action workflow starts, it fails with below error. Connection to localhost:15432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.

[@sivalabs]

Can you ping me the GitHub Action execution flow URL?

[@hy32906]

@@sivalabs HI Siva, sorry unfortunately using my org github account. So not able to share. I think i understand where the problem is. when we start the app, it will look to connect to db given in application.properties. spring.datasource.url=${DB_URL:jdbc:postgresql://localhost:15432/postgres} Where do we define db_url. I can see my catalog-db is up in my docer desktop. But how do i point to it. Need to find how to find the URL for this catalog-db image.

[@hy32906]

@@sivalabs its working fine. It must be some firewall issue on my company PC. works on my new macbook.

[@jorgetovar621]

Whats the artifact that you are using to generate the initial maven structure ?

[@sivalabs]

The root Maven project is created from Intellij IDEA and catalog service is created from start.spring.io and copied the downloaded code into root project.

[@gigasetc1]

Great course! I get the following error in my Github Action: ./mvnw: Permission denied. I had to solve this by setting the permission right in my Github action. - name: Set execute permission for mvnw run: chmod +x ./mvnw

[@sivalabs]

Added this step in the pipeline definitions. Thanks for letting me know.

[@attrayadas8067]

You seems to use a lot of IntelliJ plugins. Could you pls share the names?

[@jayasekharredditelluri1600]

What is the pre requisite for these course and for whom these course is helpfull ?

[@sivalabs]

This course is designed for Java developers with basic Spring Boot knowledge who are interested to learn building Microservices. Also, basic knowledge of Docker and Docker Compose is required

[@kumartanay3566]

Not able to open all the videos, Its private??

[@sakthinivas1840]

May I know how to install portainer tool in local?

[@sivalabs]

Here is a detailed video of how to install and use Portainer kzbin.info/www/bejne/o6nNZn-DpapqjbMsi=u85S6PxbWnYVeSRw

[@healthiswealth9520]

How did you generate starter code?

[@sivalabs]

The catalog-service project is created using start.spring.io and is explained at 9:32 in this video.

[@healthiswealth9520]

Thanks for the reply