It's okay if you've never properly studied logging before.
From writing logs for different scenarios to quickly searching and visualizing errors with ELK, and even monitoring to catch issues in advance using Prometheus, Grafana, and Discord notifications, we have condensed everything into 2 hours and 46 minutes.
Hello.
I am JSCODE Sini, who started as a developer and has served as a bootcamp instructor for 5 years, producing over 200 developers.
Looking back at my junior developer days,
I remember studying stacks like Spring very hard, but
I had never once studied log management.
That's why I always got stuck in the same place when a problem actually occurred.
A notification that an error occurred on the production server. I rushed to open the logs, but all that remained were a few lines of System.out.println. There were no clues as to where or why it happened.
Cold sweat ran down my face as I scrolled endlessly through the console.
'If only I had kept proper logs...' I regretted it then, but
I had never actually learned how to leave logs or how to view them.
These are the four most common walls that backend developers encounter when they first face logging and monitoring.
It's okay even if you have no idea how to leave logs.
From writing logs for each situation to ELK visualization,
Prometheus and Grafana monitoring,
and even Discord automatic notifications, we connect it all in one flow.
From Log Levels, Filters, to Logback, you will learn the practical standards for "properly" recording logs that fit each situation.
Collect, search, and visualize logs with Elasticsearch·Logstash·Kibana to identify errors immediately.
Monitor servers with Prometheus and Grafana, and detect issues in advance with Discord webhook notifications.
You will learn the most widely used log and monitoring stacks in the industry, not separately, but connected as a single workflow.
By utilizing Log Levels, Filters, and Logback, you will acquire the log writing skills to "properly" record logs according to each situation.
Build an ELK pipeline to collect logs using Elasticsearch·Logstash·Kibana, and quickly search and visualize errors.
Collect metrics with Actuator and Prometheus, and monitor server status at a glance with a Grafana dashboard.
Complete a portfolio-ready notification system that uses webhooks to automatically send errors and anomalies to Discord.
We are pre-releasing a portion of the actual lecture videos. Check out the explanation style and the atmosphere of the lecture beforehand.
Guide to lecture materials, practice code, and 1:1 Q&A channel
Why logs are necessary · What makes a good log
Designing log levels and filters for specific situations
Properly logging with the industry standard, Logback
Collect and store logs using the ELK pipeline
Search, visualize, and create dashboards for logs with Kibana
Exposing metrics with Spring Boot Actuator
Server Monitoring and Discord Webhook Automated Notifications
Final Summary and Next Learning Steps
These are actual reviews left by students. Listen to the voices of those who had the same concerns as you.
"After watching the lectures, I was able to see the big picture." The entire flow of how logs are accumulated and how they lead to collection, visualization, and monitoring has been organized in my head.
The lessons are really easy to understand. Studying wasn't boring and was actually fun, which I think is why I was able to complete the entire course.
I enjoyed the lecture because you explained everything step-by-step, from the basics of logging to monitoring!
The part about receiving error notification logs via webhooks in Discord was also impressive! I think I can apply it to practical work right away.
Hello! I'm Sini from JSCODE.
It feels like only yesterday that I was dragged by a friend to attend a major class back in my college days,
It's already been nearly 10 years since I first started developing.
At first, I wanted to make a positive impact on the world through the programs I created.
But as time passed, I gained one firm realization.
'Rather than building a service myself,
wouldn't raising one truly skilled developer have a much greater impact on the world?'
If the developers I taught create wonderful services in their respective positions, that positive influence will grow exponentially.
With that single mindset, I have trained over 200 developers at bootcamp sites over the past 5 years.
(Produced successful candidates for LINE, Kakao, and Kurly ☺️)
Watching my students grow as they enter the industry, I feel the power of education and a sense of pride every single day.
Now, I am looking to meet you beyond the offline classroom in the wider online world.
I want to help you grow into a 'skilled developer' who creates new value by unreservedly sharing the techniques and know-how I have accumulated in the field.
I sincerely hope that this lecture, prepared with great care,
brings a pleasant change to your life as a developer! 🙌
"So that developers who are new to logging and monitoring will no longer panic in the face of failures."
Docker is used for setting up the practice environment. Basic commands are sufficient, and deep knowledge is not required. No prior knowledge of logging or monitoring is required at all.
We have organized a roadmap of what to study and in what order for those aiming to get a job or change careers as a backend developer. If you follow the roadmap below, you won't lose your way.
A glance at the proven backend learning sequence that has led even non-major students to successful employment and career changes.
로드맵 보러가기
An essential learning course for backend developers aiming to get hired at IT service companies.
로드맵 보러가기From log zero to ELK, Prometheus, Grafana, and Discord notifications.
The fastest way to become a developer who catches problems in advance.
Log Management and Monitoring - ELK, Prometheus, Grafana — JSCODE Sini
I had a vague understanding of technologies like Logback and ELK, but I was able to understand them much more clearly through the hands-on practice. The part about receiving error notification logs via Discord webhooks was also impressive! Thank you for the great lecture~!!
I never thought I knew nothing about logs, but after watching this lecture, it feels like I actually didn't know anything at all. Having finished the entire course, I'm very satisfied as it was even better than I expected. It's great for a light watch over the weekend! Thank you~~
I really enjoyed the lecture as you explained everything step-by-step, from the basics of logging to monitoring! Often when I take courses, they can be as boring or difficult to understand as a university professor's lecture, but this course wasn't like that at all, which made it even better. I had heard a lot about Elasticsearch but never had the chance to study it, so it was great to finally get some hands-on experience! The course materials were very clean and well-organized, and the final section on setting up Discord notifications was laid out step-by-step, making it easy to follow the practice session. Please release many more follow-up courses in the future!
Thank you for explaining everything in such great detail. Thank you for providing detailed explanations focusing on practical applications used in the field.
I really enjoyed the lecture. I've been thinking a lot lately about how to apply log management and monitoring to my work, and after watching this lecture, I was able to see the big picture. I will do my best to apply what I've learned to my tasks at work. Thank you.
