System Design Logging Framework | Implementing Logger | System Design Interview Low Level| logging

In this video I have implemented a logging framework. Loggers are very common asked low level system design question. There are multiple design patterns that can be used to create this framework. Here I have used 3 Object Oriented Design pattern and coupled them to work together.
Logging is a very common phenomenon in computer science and in any application.
complete code is added in my git repo.

[TheTechGranth]

Complete code can be downloaded from :

[ggsgetafaf]

Thank you for your contributing to the community. I have more than I hope from you

[sudharsansathiamoorthy]

Excellent explanation and easy to understand. Kudos to you Bro 👍👏

[yaswanthmareddy]

From past few days I am avidly following videos in your channel . This channel really comprehensive, beginner friendly and not having any paid courses or ads like other big youtubers .... Simply #noShitTotallyHit. I hope you will continue this LLD series weekly

[MAYANKGARG-tn]

This was very detailed explanation of logging system, really helped, thanks

[jackle]

Great explanation of logger design, and clear design pattern mapping. Thank you.

[prernagolani]

very useful use case which covers Singelton, chain of responsibility and observer pattern

[himanshusingh]

Quite informative ! Good way of thinking about related design patterns.

[aasthamehtatech]

Thanks for such an awesome video explaining mapping of design patterns applications with a relatable example!

[bhawanasahu]

In actual logger for any log if the level is set then as per your loglevel set for entire application it behaves. Like If I have log.debug("something") & logelevel of my application is INFO then it will spring my debug logs.

It's not the case that "something" will be print as INFO, ERROR & DEBUG

[ankitg]

Best explanation of logger, and great usage of design pattern

[arpithams]

great explanation. really liked the way the problem is approached.

[uditagrawal]

This is quite informative with very nice demo on use of design patterns.
Thanks!!!
Nice job 👏

[SuperWhatusername]

Thank you so much 'The Tech Granth'

[shuvramdutta]

I think your logger class breaks " OPEN AND CLOSED PRINCIPLE" because if there are any other type of log files, then u have to create methods for them. If I wrong, then please correct me. Also we can use factory design pattern instead of chain responsibility pattern.

[TanEngineering]

Hey @TheTechGranth: Going through your complete videos, thank you for making this content. I make content related to coding myself and I am really enjoying your LLD videos. Would you mind sharing, how do you edit the PPT part in the start where you are able to free draw over text?? Thank you.

[rajdeepchauhan]

Should we also consider to have a "String absolute_filename" when we are calling the fileObserver ? In which file will the data be logged ?

[shubhamsrivastava]

Very good explanation :)
But I don't think we need chain of responsibility design pattern here, we can use Factory pattern directly to get the object of the required Logger as we only need one logger at a time.

[trishulcurtis]

bro you literally made a simple design more complex and mess

[thelifehackerpro]

but in actuall logger, you set the logging level first and based on that level specific data is displayed