What is OAuth really all about - OAuth tutorial - Java Brains 

I saw countless videos on Oauth but went straight to the point where I understood it immediately. What a masterful explanation. Thank you for making this video.

Teaching is an art and this man has mastered it!

You know a person really knows the topic well if he makes it so easy to understand. It is very easy to talk about a topic at such a high level which no one understands. Thank you man.

It has been almost 2months to figure out how spring security works. I know what each segment of the class and function are but never understood how it works all together. thank you you made my day!

No words! Just awesome.... the way you are explaining taking real time examples just gets registered in our minds!! Thanks a TON Koushik!!

Awesome explanation in a simple way. "These are the type of videos that we pay our internet bills to watch.." Thanks for sharing..

Showing slides and flow diagrams puts this series a tad bit above others. Oh yes, did I forget to mention the vast knowledge this guy has? 5 stars!

Clearly explained, good graphics, good examples, simple explanation, good analogies. Honestly, this video was impressive and definitely helped me understand what was going on. Very nice work!

I think isn't possible to explain more details and clear than this. Great job !!!

Hey, I'm really great full for your lessons. Early this year, I started watching your series on spring boot and due to that, I was able to get my hands dirty and start using documents. Thank you for giving me the back bone to spring boot

amazingly explained with analogy. How does this guy come up with different analogies for every concept! Very creative

The terminologies used to understand Oauth is simply amazing 😇 Best Teacher !

Now that's the way you present, was glued till the end !!!! Absolutely clear for a person with zero insights into these concepts !!! You nailed it bro , great work !

Very well done! You gave me the "Why" and easy ways to remember "What" is going on. The only downside, I now wish I had a car expensive enough to need a valet key! LOL

JB - Never thought I would say this to a man.. "You make my weekends come alive".. What a start to this weekend.... Eagerly eagerly waiting for the SAML and SAML Spring integration... My weakest point..

This is one of the channels I intentionally subscribed, everytime I watch one of your video, I feel I am full and with a smile.

this is pure gold. thank you so much sir.

i just started with one topic and here been bingewatching all this random...that i already know but didnt clearly undesrstand it... and i am loving it

Why are you such a great teacher? Just why? God bless you Kaushik!

Man, you're just awesome. I was struggling a lot with authorization concepts. Thank you so much.

I didn't find any videos simpler than this video. Hatsoff

This is BY FAR the best OAUTH explanation I’ve ever seen.

I am a teacher too and I like his simple and easy to understand style of teaching. Nice Work!!!

You're explanations are amazing! Great job at simplifying complex concepts

All the coding tutorials in the world are meaningless if the educator can’t explain why the *thing* exists in the first place. You might explain something using simplified coding examples or very clear analogies. It doesn’t matter the method; you just need to ensure that you (the educator) makes us understand the purpose of something. Java Brains has mastered this, and I am blown away by just how crystal clear his explanation was. This is something I strive to attain one day. Bravissimo!

This is gold standard! Thanks for making these videos.

I just had happy tears ! because after tons of videos full of jargon this one made sense !

Just spellbound...Crystal clear explanation that even a kid can understand.

Great voice. Simple & Interesting Explanation. Made me smile, man! 🙂

I watched JWT first and then this. Thank you.

Such a crisp explanation in one shot... Professor Kaushik....

terrific job making it clear with understandable examples we can relate to! Perhaps it was drawn out a little too much, but that's better than not enough.

You are an amazing tutor. I had trouble understanding spring security unless I found your channel. Thankyou 🎉

Wish I hadn't started trying to watch this. Made it all so much more complicated than necessary. Plus all the straining to understand his english.

You are a really amazing teacher, Thank you for sharing knowledge with us.

Thank you for real world examples or thoughts to explain this video's purpose.

Fantastic teacher. Coming to your channel first whenever I have confusion from now on

Koushik, you are a legend!!! For us you are no less than a celebrity. Your free videos add more value than all that paid content.

Really appreciated this video! Thank you! Great explanations & illustrations for a visual learner.

Subscribed after 3 minutes. Great delivery! Easily see the passion you have for teaching :)

You explained incredibly! Thank you Kaushik..the explanation wouldn't had been better than this 👍 SUPER!!

Honestly loving this explaination. Thank you so much. You are amazing for this.

I think I will end up commenting on every video of yours. This is how awesome your content is XD. A true master indeed.

This is one of the BEST Explanation ever...❤️❤️❤️

Brilliant analogy, lovely humour. Thank you

Simple. Understandable. Effective.

1:00 "don't call me crazy, ok?!" lol, not only are you the best java technical tutorial/deep-dive creator on youtube, you are hilarious too! xD

The Valet Analogy was awesome!!. Very well explained.

a very clean way of explaining concepts :) Love it

Thanks! Your storytelling way of teaching is amazing.

super excellent as always! its been amazing tutorial! really great stuff and so well organised way of learning from Java Brains

One good analogy can make some information stick forever. Really nice job! And thank you!

You are really amazing !! I was watching a video (paid service) which explains without any Examples and that was completely DRY. I couldn't catch the concept. You just nailed it. Great Thanks.

Great explanation of the concept. I am doing a side project with some services involved, and got stuck at how would I authorize my service to get some info from another service. This video cleared out the fog, Thanks!

This has to the best explanation of OAuth. Thank you.

Excellent lecture, the best I have seen so far!

You're best version of human teacher with good voice

Superb articulation Kaushik. On one go, i got to know the clear picture of OAuth.. Eagerly Expecting technical implementation guidence. Thank you so much. 😊🤗

This is amazing, what a great explanation. My dumb brain was able to comprehend it completely. Thanks a lot.

thanks a ton. the best spring security tutorials out there.

dude the way you explain help me fully understand this. thanks a lot and a lot of a lot

Thanks for this tutorial, here I have a summary : OAuth is all about Authorization, take photo print App as the example. When user needs photo print App to print out some photo stored in Google drive account, but a normal app doesn't have any user's credentials info stored or cached (basically it's illegit nor necessary), so the App would ask Google Drive for the access. --> Google drive will ask user to grant the access to the App, but only with limited permissions. --> user agreed on that --> Google sends a thing called Token which contains user's credential info but in a secure way (encrypted). --> App will send token back to Google --> Google verify it and let App to connect with it.

your thought process of teaching by explaining suitable example, Nice Man

Hello Kaushik Ji, for last 10 years, I worked in Telecom domain. But 2 years back, I have switched to Java development. I have watched all your videos on Java/Spring. Now, I am very comfortable with Spring boot. All credit goes to you. Thanks a lot!! I really mean it. This series on Spring security is gold. I started this weekend with this series and glued to it like I do with a Netflix series :) Please complete this series by including few practical sessions on Oauth and HTTPS (SSL/TLS). Thanks in advance :)

I was looking for OAuth2.0. I found this. And that's great

Thank you so much for this tutorial. You are the BEST.

Simple and straight to the point.

really good explaination with such a simple example, thanks !

Thanks again for a great video tutorial. Much appreciated.

This video was so well explained that it actually made me smile.

Thanks for such a great explanations in the simpler way

I really like the way you explain, Sir.. After watching approx 10 tutorials, now I'm searching everything at youtube like "abc xyz java brains"..

Your explanation made me to easily understand OAuth 2.0 in a simpler way. Thank you.

This is a fantastic video - excellent flow and depth!

the valet analogy is a great choice!

really loved the explanation - definitely understand this better now, thanks :)

“Second of all: Don’t call me crazy” 😂

Thanks man very clear and straightforward!

i was amused by the unpredictable handwriting fonts :-D

You made it so simple😄....thank you so much ...there should be love button for you tube videos❤️

One of the finest explanation ever seen

Extraoridinary explaination.I just got sticked to video for this awesome explaination.

Could u make series about implementation with oauth2 ?

Amazing sir, it's very interesting and easily understanding

Getting such great knowledge for free..Philanthropist for sure !

how amazing is your way of teaching . thanks

You are the best Koushik. Thanks.

This was an awesome explanation!! Thank you very much!

GREAT VIDEO!! very informative where i don't get lost!

Mind Blowing...! Superb explanation. Keep it up..!

Grateful for this content. Very clear!

This is good. I like this approach relating to simple, every day scenarios . Besides this language, and terminology are simple - I like it.

You are amazing Java Brains! Such an easy explanation..

This video is crazy good, thank you!

Very well explained, thank you very much!

Great tutorial! I don't know how the explanation could get any simpler to understand.

you take 10 mins to teach me and its much effective to my 2hours college teacher lecturer .

super clear and concise, ty!

❤️ed the Intro! 😊

Just loved your explanation. Deserves much more likes than 16k. I was trying to understand from Salesforce connected app perspective and you explained it amazingly well.